From 14607990d942924a4d8922ab14ab02c0635d5d2c Mon Sep 17 00:00:00 2001
From: Michael Wetter <mwetter@lbl.gov>
Date: Sat, 6 Apr 2024 22:01:48 -0700
Subject: [PATCH] Reformulated InductiveLoad to avoid infinite value (#3779)

For #3776
---
 .../VAV/SetPoints/FreezeProtection.mo         |  12 +-
 .../OutdoorAirFlow/ASHRAE62_1/AHU.mo          |  12 +-
 .../SetPoints/OutdoorAirFlow/Title24/AHU.mo   |  12 +-
 .../Electrical/Interfaces/InductiveLoad.mo    |  13 +-
 .../BaseClasses/Controls/SystemHysteresis.mo  |  12 +-
 ...AC_OnePhase_Examples_GeneratorLoadGrid.txt |  15 +-
 ...sBalanced_Loads_Examples_ParallelLoads.txt |  24 +-
 .../Resources/Scripts/BuildingsPy/conf.yml    |   6 +-
 Buildings/package.mo                          | 258 +++++++++++++++++-
 README.md                                     |   2 +-
 10 files changed, 322 insertions(+), 44 deletions(-)
diff --git a/Buildings/Controls/OBC/ASHRAE/G36/AHUs/MultiZone/VAV/SetPoints/FreezeProtection.mo b/Buildings/Controls/OBC/ASHRAE/G36/AHUs/MultiZone/VAV/SetPoints/FreezeProtection.mo
index 7ba704765e2..2c56abe2114 100644
--- a/Buildings/Controls/OBC/ASHRAE/G36/AHUs/MultiZone/VAV/SetPoints/FreezeProtection.mo
+++ b/Buildings/Controls/OBC/ASHRAE/G36/AHUs/MultiZone/VAV/SetPoints/FreezeProtection.mo
@@ -1062,7 +1062,7 @@ annotation (defaultComponentName="mulAHUFrePro",
         Text(
           extent={{-96,120},{-20,102}},
           textColor={0,0,127},
-          visible=minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorSection.DedicatedDampersAirflow,
+          visible=minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorAirSection.DedicatedDampersAirflow,
           textString="uMinOutDam"),
         Text(
           extent={{-98,78},{-46,62}},
@@ -1108,7 +1108,7 @@ annotation (defaultComponentName="mulAHUFrePro",
         Text(
           extent={{20,112},{98,94}},
           textColor={0,0,127},
-          visible=minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorSection.DedicatedDampersAirflow,
+          visible=minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorAirSection.DedicatedDampersAirflow,
           textString="yMinOutDam"),
         Text(
           extent={{50,40},{96,24}},
@@ -1164,11 +1164,11 @@ annotation (defaultComponentName="mulAHUFrePro",
           extent={{-96,104},{-14,80}},
           textColor={255,0,255},
           textString="u1MinOutDamPos",
-          visible=minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorSection.DedicatedDampersPressure),
+          visible=minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorAirSection.DedicatedDampersPressure),
         Text(
           extent={{16,92},{96,72}},
           textColor={255,0,255},
-          visible=minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorSection.DedicatedDampersPressure,
+          visible=minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorAirSection.DedicatedDampersPressure,
           textString="y1MinOutDam"),
         Text(
           extent={{-96,-16},{-46,-40}},
@@ -1276,6 +1276,10 @@ shall be no software reset switch.)
 </html>", revisions="<html>
 <ul>
 <li>
+April 6, 2024, by Michael Wetter:<br/>
+Corrected wrong annotation.
+</li>
+<li>
 December 22, 2022, by Jianjun Hu:<br/>
 Added flag to disable freeze protection.<br/>
 This is for
diff --git a/Buildings/Controls/OBC/ASHRAE/G36/AHUs/MultiZone/VAV/SetPoints/OutdoorAirFlow/ASHRAE62_1/AHU.mo b/Buildings/Controls/OBC/ASHRAE/G36/AHUs/MultiZone/VAV/SetPoints/OutdoorAirFlow/ASHRAE62_1/AHU.mo
index 827f76740fc..63703dcb167 100644
--- a/Buildings/Controls/OBC/ASHRAE/G36/AHUs/MultiZone/VAV/SetPoints/OutdoorAirFlow/ASHRAE62_1/AHU.mo
+++ b/Buildings/Controls/OBC/ASHRAE/G36/AHUs/MultiZone/VAV/SetPoints/OutdoorAirFlow/ASHRAE62_1/AHU.mo
@@ -219,15 +219,15 @@ annotation (
         Text(
           extent={{-96,-72},{-50,-88}},
           textColor={0,0,0},
-          visible=(minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorSection.DedicatedDampersAirflow
-               or minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorSection.SingleDamper),
+          visible=(minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorAirSection.DedicatedDampersAirflow
+               or minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorAirSection.SingleDamper),
           textString="VAirOut_flow"),
         Text(
           extent={{30,-70},{98,-86}},
           textColor={0,0,0},
           textString="outAir_normalized",
-          visible=(minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorSection.DedicatedDampersAirflow
-               or minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorSection.SingleDamper))}),
+          visible=(minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorAirSection.DedicatedDampersAirflow
+               or minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorAirSection.SingleDamper))}),
 Diagram(coordinateSystem(preserveAspectRatio=false, extent={{-220,-120},{220,120}})),
 Documentation(info="<html>
 <p>
@@ -298,6 +298,10 @@ but no larger than the design total outdoor airflow rate <code>VDesTotOutAir_flo
 </html>", revisions="<html>
 <ul>
 <li>
+April 6, 2024, by Michael Wetter:<br/>
+Corrected wrong annotation.
+</li>
+<li>
 March 12, 2022, by Jianjun Hu:<br/>
 First implementation.
 </li>
diff --git a/Buildings/Controls/OBC/ASHRAE/G36/AHUs/MultiZone/VAV/SetPoints/OutdoorAirFlow/Title24/AHU.mo b/Buildings/Controls/OBC/ASHRAE/G36/AHUs/MultiZone/VAV/SetPoints/OutdoorAirFlow/Title24/AHU.mo
index 8cfc690db7e..ef88eefa1ff 100644
--- a/Buildings/Controls/OBC/ASHRAE/G36/AHUs/MultiZone/VAV/SetPoints/OutdoorAirFlow/Title24/AHU.mo
+++ b/Buildings/Controls/OBC/ASHRAE/G36/AHUs/MultiZone/VAV/SetPoints/OutdoorAirFlow/Title24/AHU.mo
@@ -240,13 +240,13 @@ annotation (
           extent={{30,-76},{96,-100}},
           textColor={0,0,0},
           textString="outAir_normalized",
-          visible=(minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorSection.DedicatedDampersAirflow
-               or minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorSection.SingleDamper)),
+          visible=(minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorAirSection.DedicatedDampersAirflow
+               or minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorAirSection.SingleDamper)),
         Text(
           extent={{-98,-74},{-54,-88}},
           textColor={0,0,0},
-          visible=(minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorSection.DedicatedDampersAirflow
-               or minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorSection.SingleDamper),
+          visible=(minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorAirSection.DedicatedDampersAirflow
+               or minOADes == Buildings.Controls.OBC.ASHRAE.G36.Types.OutdoorAirSection.SingleDamper),
           textString="VAirOut_flow")}),
 Diagram(coordinateSystem(preserveAspectRatio=false, extent={{-100,-200},{100,200}})),
 Documentation(info="<html>
@@ -299,6 +299,10 @@ outdoor airflow setpoint should be equal to the <code>VEffDesOutAir_flow</code>.
 </html>", revisions="<html>
 <ul>
 <li>
+April 6, 2024, by Michael Wetter:<br/>
+Corrected wrong annotation.
+</li>
+<li>
 March 12, 2022, by Jianjun Hu:<br/>
 First implementation.
 </li>
diff --git a/Buildings/Electrical/Interfaces/InductiveLoad.mo b/Buildings/Electrical/Interfaces/InductiveLoad.mo
index 14cd425372c..c80b4a578eb 100644
--- a/Buildings/Electrical/Interfaces/InductiveLoad.mo
+++ b/Buildings/Electrical/Interfaces/InductiveLoad.mo
@@ -24,7 +24,11 @@ protected
     "Magnetic flux";
   Modelica.Units.SI.Impedance Z[2] "Impedance of the load";
   Modelica.Units.SI.AngularVelocity omega "Angular frequency";
-  Modelica.Units.SI.Power Q=P*tan(acos(pf_internal))
+  Modelica.Units.SI.Power Q=P*tan(acos(
+    Buildings.Utilities.Math.Functions.smoothMin(
+      x1=pf_internal,
+      x2=0.99999,
+      deltaX=0.0000025)))
     "Reactive power (positive because inductive load)";
 equation
   connect(pf_in, pf_internal);
@@ -36,6 +40,13 @@ equation
   annotation (Documentation(revisions="<html>
 <ul>
 <li>
+April 4, 2024, by Michael Wetter:<br/>
+Reformulated calculation of reactive power to bound argument of tangent away from &pi;,
+which avoids an infinite function value.<br/>
+This is for
+<a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3776\">Buildings, #3776</a>.
+</li>
+<li>
 June 06, 2014, by Marco Bonvini:<br/>
 Added power factor input <code>pf_in</code> and updated documentation.
 </li>
diff --git a/Buildings/Examples/VAVReheat/BaseClasses/Controls/SystemHysteresis.mo b/Buildings/Examples/VAVReheat/BaseClasses/Controls/SystemHysteresis.mo
index 282849c1314..05023567754 100644
--- a/Buildings/Examples/VAVReheat/BaseClasses/Controls/SystemHysteresis.mo
+++ b/Buildings/Examples/VAVReheat/BaseClasses/Controls/SystemHysteresis.mo
@@ -93,12 +93,12 @@ equation
         Ellipse(
           extent={{71,7},{85,-7}},
           lineColor=DynamicSelect({235,235,235},
-            if truFalHol.y then
+            if truFalHol1.y then
               {0,255,0}
             else
               {235,235,235}),
           fillColor=DynamicSelect({235,235,235},
-            if truFalHol.y then
+            if truFalHol1.y then
               {0,255,0}
             else
               {235,235,235}),
@@ -106,12 +106,12 @@ equation
         Ellipse(
           extent={{-83,7},{-69,-7}},
           lineColor=DynamicSelect({235,235,235},
-            if truFalHol.u then
+            if truFalHol1.u then
               {0,255,0}
             else
               {235,235,235}),
           fillColor=DynamicSelect({235,235,235},
-            if truFalHol.u then
+            if truFalHol1.u then
               {0,255,0}
             else
               {235,235,235}),
@@ -127,6 +127,10 @@ Block that ensure that the system runs for a minimum time once it is switched on
 </html>", revisions="<html>
 <ul>
 <li>
+April 6, 2024, by Michael Wetter:<br/>
+Corrected wrong annotation.
+</li>
+<li>
 January 31, 2023, by Jianjun Hu:<br/>
 Added a true delay block to avoid triggering the pump operation by a spike input.
 </li>
diff --git a/Buildings/Resources/ReferenceResults/Dymola/Buildings_Electrical_AC_OnePhase_Examples_GeneratorLoadGrid.txt b/Buildings/Resources/ReferenceResults/Dymola/Buildings_Electrical_AC_OnePhase_Examples_GeneratorLoadGrid.txt
index b29f152b0f4..ef10afff270 100644
--- a/Buildings/Resources/ReferenceResults/Dymola/Buildings_Electrical_AC_OnePhase_Examples_GeneratorLoadGrid.txt
+++ b/Buildings/Resources/ReferenceResults/Dymola/Buildings_Electrical_AC_OnePhase_Examples_GeneratorLoadGrid.txt
@@ -1,5 +1,10 @@
-last-generated=2015-05-08
-statistics-simulation={'numerical Jacobians': '0', 'nonlinear': ' ', 'linear': '0'}
-grid.P.real=[5000., 5000., 5000., 5000., 5000., 5000., 5000., 5000., 5000., 5000., 5000., 4833.33348615961403993424, 4666.66645920329392538406, 4499.99992052691322896862, 4333.33350602774044091348, 4166.6666032476086911629, 3999.99994039562170655699, 3833.33328175553242544993, 3666.66686725563204163336, 3499.99996026374765278888, 3333.3333016238038908341, 3166.6666387713808035187, 2999.99998013187405376812, 2833.33332149207581096562, 2666.66665863965272365022, 2500., 2333.33309300811561115552, 2166.66692686000988032902, 2000.00001986819847843435, 1833.33323494604542247544, 1666.66682465855183181702, 1500.0000397363978663634, 1333.33325481424390090979, 1166.66684452675031025137, 1000.00005960459634479776, 833.33321364746893777919, 666.66692542966939072357, 500.00007947265021357452, 333.33326403313640184933, 166.666433334760768048, 0.00009934086479290727, -166.6667313574441777746, -333.33356205564700758259, -499.999880790915540274, -666.66672674804385678726, -833.33351167027058181702, -999.99986092286258099193, -1166.66664584476097843435, -1333.33355283657260770269, -1499.99984105440853454638, -1666.6666259765625, -1833.33353296607856464107, -2000.00031788644605512673, -2166.66722487479773917585, -2333.33289433218396879965, -2499.99980132169957869337, -2666.66670830974044292816, -2833.3333711609780038998, -3000.00027814962095362716, -3166.66718513913656352088, -3333.33285459652279314469, -3499.9997615860384030384, -3666.66666857497239107033, -3833.33333142502760892967, -4000.0002384139615969616, -4166.66690126576304464834, -4333.33305899828701512888, -4499.99972184834223298822, -4666.66638470014368067496, -4833.33353583030293521006, -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000., -5000.]
-grid.P.apparent=[5000., 5000., 5000., 5000., 5000., 5000., 5000., 5000., 5000., 5000., 5000., 4834.29100581935745140072, 4670.63325724062542576576, 4509.24943546803297067527, 4350.39356409194715524791, 4194.35263135346940543968, 4041.45185034590394934639, 3892.06228230378928856226, 3746.60361846113937644986, 3605.55123658723596236086, 3469.44339930719343101373, 3338.88419411656786905951, 3214.5502786307770293206, 3097.19120983075617914437, 2987.62885019220721005695, 2886.75146484375, 2795.49894232645283409511, 2714.8426110333616634307, 2645.75122836090895361849, 2589.15108238512266325415, 2545.87553330332912082667, 2516.61157787450383693795, 2501.85106998240507891751, 2501.85106645211772047332, 2516.61156489087488807854, 2545.87551079228933303966, 2589.15105334101372136502, 2645.75119126407798830769, 2714.84256562420250702417, 2795.49914813551959014148, 2886.75140806592980879941, 2987.62894424220849032281, 3097.19131209085890077404, 3214.55020694091172117624, 3338.88430790474740206264, 3469.44351910377417880227, 3605.55115422720064088935, 3746.60353276435625957674, 3892.06241452586073137354, 4041.45176042761931967107, 4194.3525390625, 4350.39370515641348902136, 4509.24981768563338846434, 4670.63376650683130719699, 4834.29066262712422030745, 4999.99980154434069845593, 5167.56245988334649155149, 5336.80432093938543403056, 5507.57059891875178436749, 5679.72408633097620622721, 5853.14069868674050667323, 6027.71361683476698090089, 6203.34415434489528706763, 6379.94539696952779195271, 6557.4387311864384173532, 6735.75335592334431566996, 6914.8252132104707925464, 7094.59882062216001941124, 7275.02037859018855670001, 7456.04398855378076405032, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625, 7637.6259765625]
-time=[0., 1.]
+last-generated=2024-04-04
+statistics-simulation=
+{
+  "linear": "0",
+  "nonlinear": " ",
+  "numerical Jacobians": "0"
+}
+time=[0e+00, 1e+00]
+grid.P.real=[5e+03, 5e+03, 5e+03, 5e+03, 5e+03, 5e+03, 5e+03, 5e+03, 5e+03, 5e+03, 5e+03, 4.833333486159614e+03, 4.666666459203294e+03, 4.499999920526913e+03, 4.33333350602774e+03, 4.166666603247609e+03, 3.999999940395622e+03, 3.833333281755532e+03, 3.666666867255632e+03, 3.499999960263748e+03, 3.333333301623804e+03, 3.166666638771381e+03, 2.999999980131874e+03, 2.833333321492076e+03, 2.666666658639653e+03, 2.5e+03, 2.333333093008116e+03, 2.16666692686001e+03, 2.000000019868198e+03, 1.833333234946045e+03, 1.666666824658552e+03, 1.500000039736398e+03, 1.333333254814244e+03, 1.16666684452675e+03, 1.000000059604596e+03, 8.333332136474689e+02, 6.666669254296694e+02, 5.000000794726502e+02, 3.333332640331364e+02, 1.666664333347608e+02, 9.934086505580808e-05, -1.666667313574442e+02, -3.33333562055647e+02, -4.999998807909155e+02, -6.666667267480439e+02, -8.333335116702706e+02, -9.999998609228626e+02, -1.166666645844761e+03, -1.333333552836573e+03, -1.499999841054409e+03, -1.666666625976562e+03, -1.833333532966079e+03, -2.000000317886446e+03, -2.166667224874798e+03, -2.333332894332184e+03, -2.4999998013217e+03, -2.66666670830974e+03, -2.833333371160978e+03, -3.000000278149621e+03, -3.166667185139137e+03, -3.333332854596523e+03, -3.499999761586038e+03, -3.666666668574972e+03, -3.833333331425028e+03, -4.000000238413962e+03, -4.166666901265763e+03, -4.333333058998287e+03, -4.499999721848342e+03, -4.666666384700144e+03, -4.833333535830303e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03, -5e+03]
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diff --git a/Buildings/Resources/ReferenceResults/Dymola/Buildings_Electrical_AC_ThreePhasesBalanced_Loads_Examples_ParallelLoads.txt b/Buildings/Resources/ReferenceResults/Dymola/Buildings_Electrical_AC_ThreePhasesBalanced_Loads_Examples_ParallelLoads.txt
index fffc3cb9653..a6d0023c17f 100644
--- a/Buildings/Resources/ReferenceResults/Dymola/Buildings_Electrical_AC_ThreePhasesBalanced_Loads_Examples_ParallelLoads.txt
+++ b/Buildings/Resources/ReferenceResults/Dymola/Buildings_Electrical_AC_ThreePhasesBalanced_Loads_Examples_ParallelLoads.txt
@@ -1,18 +1,18 @@
-last-generated=2017-04-05
+last-generated=2024-04-04
 statistics-simulation=
 {
-  "numerical Jacobians": "0", 
-  "nonlinear": " ", 
-  "linear": " "
+  "linear": " ",
+  "nonlinear": " ",
+  "numerical Jacobians": "0"
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+varRC_y.S[2]=[1.500000053056283e-07, 1.500000053056283e-07, 1.500000053056283e-07, 1.500000053056283e-07, 1.500000053056283e-07, 1.500000053056283e-07, 1.500000053056283e-07, 1.500000053056283e-07, 1.500000053056283e-07, 1.500000053056283e-07, 1.500000053056283e-07, 1.500000053056283e-07, 1.500000053056283e-07, 1.500000053056283e-07, 1.500000053056283e-07, 1.500000053056283e-07, 1.500000053056283e-07, 1.500000053056283e-07, 1.500000053056283e-07, 1.500000053056283e-07, 1.500000053056283e-07, 5.000003278248816e+01, 1.000000059604524e+02, 1.499999791384166e+02, 2.000000268220357e+02, 2.5e+02, 3.000000476836192e+02, 3.499999463559285e+02, 3.999999940395477e+02, 4.500000417231667e+02, 4.99999940395476e+02, 5.499999880790951e+02, 6.000000357627144e+02, 6.499999344350236e+02, 6.999999821186429e+02, 7.500000298022619e+02, 7.999999284745711e+02, 8.499999761581904e+02, 9.000000238418096e+02, 9.500000715254289e+02, 9.999999701977381e+02, 1.050000017881357e+03, 1.100000065564976e+03, 1.149999964237286e+03, 1.200000011920905e+03, 1.250000059604524e+03, 1.299999958276833e+03, 1.350000005960452e+03, 1.400000053644071e+03, 1.449999952316381e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03]
+varRL_P.S[1]=[-2e+03, -2e+03, -2e+03, -2e+03, -2e+03, -2e+03, -2e+03, -2e+03, -2e+03, -2e+03, -2e+03, -2e+03, -2e+03, -2e+03, -2e+03, -2e+03, -2e+03, -2e+03, -2e+03, -2e+03, -2e+03, -1.866666538556728e+03, -1.733333358128849e+03, -1.600000055630804e+03, -1.466666554451243e+03, -1.333333374023438e+03, -1.199999872843876e+03, -1.066666769027856e+03, -9.333333288828328e+02, -7.999998887381373e+02, -6.666668459568737e+02, -5.33333344777385e+02, -3.999999046327979e+02, -2.666668313342108e+02, -1.333333759306983e+02, 7.947269690840413e-05, 1.333331375126116e+02, 2.666665929160059e+02, 4.000000635781347e+02, 5.333335037229037e+02, 6.666666075389597e+02, 8.000000476836552e+02, 9.333334878283515e+02, 1.06666653060947e+03, 1.200000031789031e+03, 1.333333532968592e+03, 1.466666514714954e+03, 1.600000015894515e+03, 1.733333517074077e+03, 1.866666498820439e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03, 2e+03]
+varRL_P.S[2]=[-1.5e+03, -1.5e+03, -1.5e+03, -1.5e+03, -1.5e+03, -1.5e+03, -1.5e+03, -1.5e+03, -1.5e+03, -1.5e+03, -1.5e+03, -1.5e+03, -1.5e+03, -1.5e+03, -1.5e+03, -1.5e+03, -1.5e+03, -1.5e+03, -1.5e+03, -1.5e+03, -1.5e+03, -1.399999934435024e+03, -1.299999988079095e+03, -1.200000041723167e+03, -1.099999946355929e+03, -1e+03, -8.999999046327615e+02, -8.00000107288143e+02, -7.000000119209045e+02, -5.999999165536666e+02, -5.000001192090481e+02, -4.000000238418096e+02, -2.999999284745712e+02, -2.000001311299526e+02, -1.000000357627141e+02, 5.960452410238568e-05, 9.99998569491423e+01, 1.999999523163808e+02, 3.000000476836192e+02, 4.000001430508577e+02, 4.999999403954762e+02, 6.000000357627141e+02, 7.000001311299526e+02, 7.999999284745711e+02, 9.000000238418096e+02, 1.000000119209048e+03, 1.099999916553667e+03, 1.200000011920905e+03, 1.300000107288143e+03, 1.399999904632762e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03, 1.5e+03]
 E.S[1]=[-6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03, -6e+03]
+E.S[2]=[-3e+03, -3e+03, -3e+03, -3e+03, -3e+03, -3e+03, -3e+03, -3e+03, -3e+03, -3e+03, -3e+03, -3e+03, -3e+03, -3e+03, -3e+03, -3e+03, -3e+03, -3e+03, -3e+03, -3e+03, -3e+03, -2.899999934435024e+03, -2.799999988079095e+03, -2.700000041723167e+03, -2.599999946355928e+03, -2.5e+03, -2.399999904632762e+03, -2.300000107288143e+03, -2.200000011920904e+03, -2.099999916553666e+03, -2.000000119209048e+03, -1.90000002384181e+03, -1.799999928474571e+03, -1.700000131129953e+03, -1.600000035762714e+03, -1.499999940395476e+03, -1.400000143050858e+03, -1.300000047683619e+03, -1.199999952316381e+03, -1.099999856949142e+03, -1.000000059604524e+03, -8.999999642372859e+02, -7.999998688700474e+02, -7.000000715254289e+02, -5.999999761581904e+02, -4.999998807909519e+02, -4.000000834463334e+02, -2.999999880790955e+02, -1.99999892711857e+02, -1.000000953672385e+02, 0e+00, 0e+00, 0e+00, 0e+00, 0e+00, 0e+00, 0e+00, 0e+00, 0e+00, 0e+00, 0e+00, 0e+00, 0e+00, 0e+00, 0e+00, 0e+00, 0e+00, 0e+00, 0e+00, 0e+00, 6.20705299981152e-05, 5.202510923677715e+01, 1.039912606323405e+02, 1.559917372955744e+02, 2.081275747154712e+02, 2.605113220214844e+02, 3.132697344248759e+02, 3.66547862359802e+02, 4.205144990834633e+02, 4.753694798044301e+02, 5.313557065671976e+02, 5.887730574428828e+02, 6.480035833297679e+02, 7.095495439772532e+02, 7.740970988732786e+02, 8.426316069615328e+02, 9.166665772381484e+02, 9.987527054677458e+02, 1.093882741524671e+03, 1.215015598813981e+03, 1.4910556640625e+03, 1.4910556640625e+03, 1.4910556640625e+03, 1.4910556640625e+03, 1.4910556640625e+03, 1.4910556640625e+03, 1.4910556640625e+03, 1.4910556640625e+03, 1.4910556640625e+03, 1.4910556640625e+03, 1.4910556640625e+03]
diff --git a/Buildings/Resources/Scripts/BuildingsPy/conf.yml b/Buildings/Resources/Scripts/BuildingsPy/conf.yml
index adc70afd969..80113ee8214 100644
--- a/Buildings/Resources/Scripts/BuildingsPy/conf.yml
+++ b/Buildings/Resources/Scripts/BuildingsPy/conf.yml
@@ -30,10 +30,6 @@
   openmodelica:
     comment: 'TimeoutExpired: omc timed out after 300 seconds'
     time_out: 600
-- model_name: Buildings.Electrical.AC.ThreePhasesBalanced.Loads.Examples.ParallelLoads
-  openmodelica:
-    comment: 'division leads to inf or nan at time 0.901, (a=nan) / (b=230400), where divisor b is: varRL_P.v[1] ^ 2.0 + varRL_P.v[2] ^ 2.0'
-    simulate: false
 - model_name: Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DD
   openmodelica:
     comment: simulation terminated by an assertion at initialization.
@@ -471,7 +467,7 @@
 - model_name: Buildings.ThermalZones.EnergyPlus_9_6_0.Examples.SmallOffice.Guideline36Winter
   openmodelica:
     comment: Timeout on travis
-    time_out: 600
+    time_out: 900
 - model_name: Buildings.ThermalZones.EnergyPlus_9_6_0.Examples.SmallOffice.IdealHeatingCoolingSpring
   openmodelica:
     comment: returned non-zero exit status 255.
diff --git a/Buildings/package.mo b/Buildings/package.mo
index 6d7b8273b11..8f5dde0d610 100644
--- a/Buildings/package.mo
+++ b/Buildings/package.mo
@@ -214,6 +214,23 @@ Each class (i.e., model, block and function) must be used in an example or valid
 <p>
 Version 10.1.0 is backward compatible with version 10.0.0.
 </p>
+<p>
+The library has been tested with
+Dymola 2024x,
+OpenModelica 1.22.1-1,
+OPTIMICA 1.43.4 and recent versions of Impact.
+</p>
+<p>
+The following major changes have been done compared to release 10.0.0:
+</p>
+<ul>
+<li>
+A package to model aquifer thermal energy storage has been added.
+</li>
+</ul>
+<p>
+Many models have been updated to improve performance, for compliance with the Modelica Language Standard and to correct model errors.
+</p>
 </div>
 <!-- New libraries -->
 <p>
@@ -1596,6 +1613,236 @@ units are wrong or errors in documentation):
 </html>"));
   end Version_10_0_0;
 
+
+  class Version_9_1_2 "Version 9.1.2"
+      extends Modelica.Icons.ReleaseNotes;
+        annotation (Documentation(info="<html>
+<div class=\"release-summary\">
+<p>
+Version 9.1.2 is backward compatible with 9.1.0 and 9.1.1, except that relative to 9.1.0, the Spawn binaries need to be updated as described
+in <code>Buildings.ThermalZones.EnergyPlus_9_6_0.UsersGuide.Installation</code>.
+</p>
+<p>
+The library has been tested with Dymola 2023x, OpenModelica 1.22.0-dev (41-g8a5b18f-1), OPTIMICA 1.43.4 and recent versions of Impact.
+</p>
+<p>
+This backward compatible version adds a heat meter sensor and it adds a new example that demonstrates
+how to use a hydronic radiator with the updated Spawn interface.
+Also, many models have been updated to improve performance, for compliance with the Modelica Language Standard and
+to correct model errors.
+</p>
+</div>
+<!-- New libraries -->
+<!-- New components for existing libraries -->
+<p>
+The following <b style=\"color:blue\">new components</b> have been added
+to <b style=\"color:blue\">existing</b> libraries:
+</p>
+<table class=\"releaseTable\" summary=\"summary\" border=\"1\" cellspacing=\"0\" cellpadding=\"2\" style=\"border-collapse:collapse;\">
+<tr><td colspan=\"2\"><b>Buildings.Fluid.Sensors</b>
+    </td>
+</tr>
+<tr><td valign=\"top\">Buildings.Fluid.Sensors.HeatMeter
+    </td>
+    <td valign=\"top\">Sensor to measure the heat flow rate between a supply and return pipe in a fluid circuit.<br/>
+                       This is for
+                       <a href=\"https://github.com/ibpsa/modelica-ibpsa/issues/1831\">IBPSA, #1831</a>.
+
+    </td>
+    </tr>
+<tr><td colspan=\"2\"><b>Buildings.ThermalZones.EnergyPlus_9_6_0</b>
+    </td>
+</tr>
+<tr><td valign=\"top\">Buildings.ThermalZones.EnergyPlus_9_6_0.Examples.SingleFamilyHouse.Radiator
+    </td>
+    <td valign=\"top\">Added example for how to couple a radiator to the zone model.<br/>
+                     This is for
+                     <a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3659\">Buildings, #3659</a>.
+    </td>
+    </tr>
+</table>
+<!-- Backward compatible changes -->
+<p>
+The following <b style=\"color:blue\">existing components</b>
+have been <b style=\"color:blue\">improved</b> in a
+<b style=\"color:blue\">backward compatible</b> way:
+</p>
+<table class=\"releaseTable\" summary=\"summary\" border=\"1\" cellspacing=\"0\" cellpadding=\"2\" style=\"border-collapse:collapse;\">
+<tr><td colspan=\"2\"><b>Buildings.Air.Systems.SingleZone.VAV</b>
+    </td>
+    </tr>
+    <tr><td valign=\"top\">Buildings.Air.Systems.SingleZone.VAV.BaseClasses.ControllerChillerDXHeatingEconomizer<br/>
+    </td>
+    <td valign=\"top\">Adjust hysteresis based on heating to avoid chatter.<br>
+                       This is for <a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3735\">#3735</a>.
+    </td>
+    </tr>
+    <tr><td colspan=\"2\"><b>Buildings.Controls.DemandResponse</b>
+    </td>
+    </tr>
+    <tr><td valign=\"top\">Buildings.Controls.DemandResponse.Client
+    </td>
+    <td valign=\"top\">Refactored implementation so it works also with OpenModelica.<br/>
+                       This is for <a href=\"https://github.com/ibpsa/modelica-ibpsa/issues/3754\">#3754</a>.
+    </td>
+    </tr>
+    <tr><td colspan=\"2\"><b>Buildings.Electrical</b>
+    </td>
+    </tr>
+    <tr><td valign=\"top\">Buildings.Electrical.Interfaces.InductiveLoad
+    </td>
+    <td valign=\"top\">Reformulated calculation of reactive power to bound argument of tangent away from &pi;,
+                       which avoids an infinite function value.<br/>
+                       This is for
+                       <a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3776\">Buildings, #3776</a>.
+    </td>
+    </tr>
+    <tr><td colspan=\"2\"><b>Buildings.Fluid.FMI</b>
+    </td>
+    </tr>
+    <tr><td valign=\"top\">Buildings.Fluid.FMI.AirToOutlet<br/>
+                           Buildings.Fluid.FMI.InletToAir<br/>
+                           Buildings.Fluid.FMI.FlowSplitter_u<br/>
+                           Buildings.Fluid.FMI.Sink_T<br/>
+                           Buildings.Fluid.FMI.Source_T<br/>
+                           Buildings.Fluid.FMI.Adaptors.Inlet<br/>
+                           Buildings.Fluid.FMI.Adaptors.Outlet
+    </td>
+    <td valign=\"top\">Added missing causality which is required for language compliance and for
+                       Wolfram System Modeler.<br/>
+                       This is for <a href=\"https://github.com/ibpsa/modelica-ibpsa/issues/1829\">IBPSA, #1829</a> and
+                       <a href=\"https://github.com/ibpsa/modelica-ibpsa/issues/1853\">IBPSA, #1853</a>.
+    </td>
+    <tr><td colspan=\"2\"><b>Buildings.Fluid.Sensors.Examples</b>
+    </td>
+    </tr>
+    <tr><td valign=\"top\">Buildings.Fluid.Sensors.Examples.PPM
+    </td>
+    <td valign=\"top\">Added pressure drop to avoid redundant initial conditions for pressure of control volume.
+                       This corrects an issue in Wolfram System Modeler.<br/>
+                       This is for <a href=\"https://github.com/ibpsa/modelica-ibpsa/issues/1830\">#1830</a>.
+    </td>
+    <tr><td colspan=\"2\"><b>Buildings.Occupants</b>
+    </td>
+</tr>
+<tr><td valign=\"top\">Buildings.Occupants.BaseClasses.binaryVariableGeneration<br/>
+                       Buildings.Occupants.BaseClasses.exponentialVariableGeneration<br/>
+                       Buildings.Occupants.BaseClasses.weibullVariableGeneration
+    </td>
+    <td valign=\"top\">Initialized <code>localSeed</code>.<br/>
+                       This is for <a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3549\">#3549</a>.
+    </td>
+</tr>
+<tr><td colspan=\"2\"><b>Buildings.ThermalZones.EnergyPlus_9_6_0</b>
+    </td>
+</tr>
+<tr><td valign=\"top\">Buildings.ThermalZones.EnergyPlus_9_6_0.ThermalZone
+    </td>
+    <td valign=\"top\">Added radiative heat port to allow coupling of a radiator to the thermal zone.<br/>
+                     This is for
+                     <a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3659\">Buildings, #3659</a>.
+    </td>
+<tr><td valign=\"top\">Buildings.ThermalZones.EnergyPlus_9_6_0.BaseClasses.ThermalZoneAdapter
+    </td>
+    <td valign=\"top\">Added <code>pre()</code> operator on mass flow rate and radiative heat gain
+                     to avoid an algebraic loop on discrete variables.<br/>
+                     This is for
+                     <a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3659\">Buildings, #3659</a>.
+    </td>
+</tr>
+</table>
+<!-- Non-backward compatible changes to existing components -->
+<!-- Errors that have been fixed -->
+<p>
+The following <b style=\"color:red\">critical errors</b> have been fixed (i.e., errors
+that can lead to wrong simulation results):
+</p>
+<table class=\"releaseTable\" summary=\"summary\" border=\"1\" cellspacing=\"0\" cellpadding=\"2\" style=\"border-collapse:collapse;\">
+<tr><td colspan=\"2\"><b>Buildings.Fluid.SolarCollectors</b>
+    </td>
+</tr>
+<tr><td valign=\"top\">Buildings.Fluid.SolarCollectors.ASHRAE93<br/>
+                       Buildings.Fluid.SolarCollectors.EN12975
+    </td>
+    <td valign=\"top\">Corrected implementation of pressure drop calculation for the situation where the collectors are in parallel,
+                       e.g., if <code>sysConfig == Buildings.Fluid.SolarCollectors.Types.SystemConfiguration.Parallel</code>.<br/>
+                       This is for
+                       <a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3597\">Buildings, #3597</a>.
+    </td>
+</tr>
+<tr><td colspan=\"2\"><b>Buildings.Airflow.Multizone</b>
+    </td>
+</tr>
+<tr><td valign=\"top\">Buildings.Airflow.Multizone.BaseClasses.interpolate
+    </td>
+    <td valign=\"top\">Corrected implementation to ensure that the function is once continuously differentiable.<br/>
+                       This is for
+                       <a href=\"https://github.com/ibpsa/modelica-ibpsa/issues/1840\">IBPSA, #1840</a>.
+    </td>
+</tr>
+</table>
+<!-- Uncritical errors -->
+<p>
+The following <b style=\"color:red\">uncritical errors</b> have been fixed (i.e., errors
+that do <b style=\"color:red\">not</b> lead to wrong simulation results, e.g.,
+units are wrong or errors in documentation):
+</p>
+<table class=\"releaseTable\" summary=\"summary\" border=\"1\" cellspacing=\"0\" cellpadding=\"2\" style=\"border-collapse:collapse;\">
+<tr><td colspan=\"2\"><b>Buildings.Airflow.Multizone</b>
+    </td>
+</tr>
+<tr><td valign=\"top\">Buildings.Airflow.Multizone.MediumColumn<br/>
+                       Buildings.Airflow.Multizone.MediumColumnDynamic
+    </td>
+    <td valign=\"top\">Corrected wrong annotation.
+                       This is for <a href=\"https://github.com/ibpsa/modelica-ibpsa/issues/1842\">IBPSA, #1842</a>.
+    </td>
+</tr>
+<tr><td colspan=\"2\"><b>Buildings.BoundaryConditions</b>
+    </td>
+</tr>
+<tr><td valign=\"top\">Buildings.BoundaryConditions.SolarIrradiation.BaseClasses.SkyClearness
+    </td>
+    <td valign=\"top\">Corrected wrong <code>displayUnit</code> attribute.<br/>
+                       This is for <a href=\"https://github.com/ibpsa/modelica-ibpsa/issues/1848\">IBPSA, #1848</a>.
+    </td>
+</tr>
+<tr><td colspan=\"2\"><b>Buildings.Controls.OBC.ASHRAE.G36</b>
+    </td>
+</tr>
+<tr><td valign=\"top\">Buildings.Controls.OBC.ASHRAE.G36.AHUs.MultiZone.VAV.SetPoints.ReliefFan<br/>
+                       Buildings.Controls.OBC.ASHRAE.G36.AHUs.SingleZone.VAV.SetPoints.ReliefFan<br/>
+                       Buildings.Controls.OBC.ASHRAE.G36.AHUs.SingleZone.VAV.SetPoints.ReliefFanGroup
+    </td>
+    <td valign=\"top\">Corrected wrong use <code>displayUnit</code> attribute.
+    </td>
+</tr>
+<tr><td colspan=\"2\"><b>Buildings.Examples</b>
+    </td>
+</tr>
+<tr><td valign=\"top\">Buildings.Examples.DualFanDualDuct.ClosedLoop<br/>
+                       Buildings.Examples.VAVReheat.BaseClasses.ASHRAE2006<br/>
+                       Buildings.Examples.ScalableBenchmarks.BuildingVAV.Examples.OneFloor_OneZone
+    </td>
+    <td valign=\"top\">Corrected wrong use <code>displayUnit</code> attribute.
+    </td>
+</tr>
+<tr><td colspan=\"2\"><b>Buildings.Fluid.HeatPumps</b>
+    </td>
+</tr>
+<tr><td valign=\"top\">Buildings.Fluid.HeatPumps.EquationFitReversible
+    </td>
+    <td valign=\"top\">Corrected wrong assertion for operation mode.<br/>
+                     This is for
+                     <a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3664\">Buildings, #3664</a>.
+    </td>
+</tr>
+
+</table>
+</html>"));
+  end Version_9_1_2;
+
+
   class Version_9_1_1 "Version 9.1.1"
   extends Modelica.Icons.ReleaseNotes;
     annotation (Documentation(info="<html>
@@ -12630,12 +12877,15 @@ on the Buildings library.
 </p>
 <ul>
 <li>
-<a href=\"modelica://Buildings.UsersGuide.ReleaseNotes.Version_10_1_0\">Version 10.1.0</a> (xxx, 2023)
+<a href=\"modelica://Buildings.UsersGuide.ReleaseNotes.Version_10_1_0\">Version 10.1.0</a> (April 9, 2024)
 </li>
 <li>
 <a href=\"modelica://Buildings.UsersGuide.ReleaseNotes.Version_10_0_0\">Version 10.0.0</a> (September 5, 2023)
 </li>
 <li>
+<a href=\"modelica://Buildings.UsersGuide.ReleaseNotes.Version_9_1_2\">Version 9.1.2</a> (April 9, 2024)
+</li>
+<li>
 <a href=\"modelica://Buildings.UsersGuide.ReleaseNotes.Version_9_1_1\">Version 9.1.1</a> (September 5, 2023)
 </li>
 <li>
@@ -13211,12 +13461,12 @@ end UsersGuide;
 annotation (
 preferredView="info",
 version="10.1.0",
-versionDate="2023-09-05",
-dateModified="2023-09-05",
+versionDate="2024-04-09",
+dateModified="2024-04-09",
 uses(Modelica(version="4.0.0")),
 conversion(
   from(
-    version={"9.0.0", "9.1.0", "9.1.1"},
+    version={"9.0.0", "9.1.0", "9.1.1", "9.1.2"},
     script="modelica://Buildings/Resources/Scripts/Conversion/ConvertBuildings_from_9_to_10.0.0.mos"),
   from(
     version={"8.0.0", "8.1.0", "8.1.1", "8.1.2", "8.1.3"},
diff --git a/README.md b/README.md
index 4a39e755f01..5d108aa12e8 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@ The main project site is http://simulationresearch.lbl.gov/modelica.
 
 ## Current release
 
-Download [Buildings Library 10.0.0 (2023-09-05)](https://github.com/lbl-srg/modelica-buildings/releases/download/v10.0.0/Buildings-v10.0.0.zip)
+Download [Buildings Library 10.1.0 (2024-04-09)](https://github.com/lbl-srg/modelica-buildings/releases/download/v10.1.0/Buildings-v10.1.0.zip)
 
 ## License
 

Buildings.Fluid.Sensors +
Buildings.Fluid.Sensors.HeatMeter +	Sensor to measure the heat flow rate between a supply and return pipe in a fluid circuit. + This is for + IBPSA, #1831. + +
Buildings.ThermalZones.EnergyPlus_9_6_0 +
Buildings.ThermalZones.EnergyPlus_9_6_0.Examples.SingleFamilyHouse.Radiator +	Added example for how to couple a radiator to the zone model. + This is for + Buildings, #3659. +
Buildings.Air.Systems.SingleZone.VAV +
Buildings.Air.Systems.SingleZone.VAV.BaseClasses.ControllerChillerDXHeatingEconomizer +	Adjust hysteresis based on heating to avoid chatter. + This is for #3735. +
Buildings.Controls.DemandResponse +
Buildings.Controls.DemandResponse.Client +	Refactored implementation so it works also with OpenModelica. + This is for #3754. +
Buildings.Electrical +
Buildings.Electrical.Interfaces.InductiveLoad +	Reformulated calculation of reactive power to bound argument of tangent away from π, + which avoids an infinite function value. + This is for + Buildings, #3776. +
Buildings.Fluid.FMI +
Buildings.Fluid.FMI.AirToOutlet + Buildings.Fluid.FMI.InletToAir + Buildings.Fluid.FMI.FlowSplitter_u + Buildings.Fluid.FMI.Sink_T + Buildings.Fluid.FMI.Source_T + Buildings.Fluid.FMI.Adaptors.Inlet + Buildings.Fluid.FMI.Adaptors.Outlet +	Added missing causality which is required for language compliance and for + Wolfram System Modeler. + This is for IBPSA, #1829 and + IBPSA, #1853. +
Buildings.Fluid.Sensors.Examples +
Buildings.Fluid.Sensors.Examples.PPM +	Added pressure drop to avoid redundant initial conditions for pressure of control volume. + This corrects an issue in Wolfram System Modeler. + This is for #1830. +
Buildings.Occupants +
Buildings.Occupants.BaseClasses.binaryVariableGeneration + Buildings.Occupants.BaseClasses.exponentialVariableGeneration + Buildings.Occupants.BaseClasses.weibullVariableGeneration +	Initialized `localSeed`. + This is for #3549. +
Buildings.ThermalZones.EnergyPlus_9_6_0 +
Buildings.ThermalZones.EnergyPlus_9_6_0.ThermalZone +	Added radiative heat port to allow coupling of a radiator to the thermal zone. + This is for + Buildings, #3659. +
Buildings.ThermalZones.EnergyPlus_9_6_0.BaseClasses.ThermalZoneAdapter +	Added `pre()` operator on mass flow rate and radiative heat gain + to avoid an algebraic loop on discrete variables. + This is for + Buildings, #3659. +
Buildings.Fluid.SolarCollectors +
Buildings.Fluid.SolarCollectors.ASHRAE93 + Buildings.Fluid.SolarCollectors.EN12975 +	Corrected implementation of pressure drop calculation for the situation where the collectors are in parallel, + e.g., if `sysConfig == Buildings.Fluid.SolarCollectors.Types.SystemConfiguration.Parallel`. + This is for + Buildings, #3597. +
Buildings.Airflow.Multizone +
Buildings.Airflow.Multizone.BaseClasses.interpolate +	Corrected implementation to ensure that the function is once continuously differentiable. + This is for + IBPSA, #1840. +
Buildings.Airflow.Multizone +
Buildings.Airflow.Multizone.MediumColumn + Buildings.Airflow.Multizone.MediumColumnDynamic +	Corrected wrong annotation. + This is for IBPSA, #1842. +
Buildings.BoundaryConditions +
Buildings.BoundaryConditions.SolarIrradiation.BaseClasses.SkyClearness +	Corrected wrong `displayUnit` attribute. + This is for IBPSA, #1848. +
Buildings.Controls.OBC.ASHRAE.G36 +
Buildings.Controls.OBC.ASHRAE.G36.AHUs.MultiZone.VAV.SetPoints.ReliefFan + Buildings.Controls.OBC.ASHRAE.G36.AHUs.SingleZone.VAV.SetPoints.ReliefFan + Buildings.Controls.OBC.ASHRAE.G36.AHUs.SingleZone.VAV.SetPoints.ReliefFanGroup +	Corrected wrong use `displayUnit` attribute. +
Buildings.Examples +
Buildings.Examples.DualFanDualDuct.ClosedLoop + Buildings.Examples.VAVReheat.BaseClasses.ASHRAE2006 + Buildings.Examples.ScalableBenchmarks.BuildingVAV.Examples.OneFloor_OneZone +	Corrected wrong use `displayUnit` attribute. +
Buildings.Fluid.HeatPumps +
Buildings.Fluid.HeatPumps.EquationFitReversible +	Corrected wrong assertion for operation mode. + This is for + Buildings, #3664. +