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[WIP] Fix AC Emulation Disabled in Fast DC Security Analysis #1173

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[WIP] Fix AC Emulation Disabled in Fast DC Security Analysis #1173

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478fa4e
Disable AC emulation in WoodburyDcSecurityAnalysis
p-arvy Jan 21, 2025
683fb53
Merge branch 'refs/heads/main' into disable-hvdc-ac-emul-in-fast-dc-sa
p-arvy Jan 24, 2025
8930cfd
Clean
p-arvy Jan 24, 2025
c2f556a
Fix
p-arvy Jan 24, 2025
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7 changes: 5 additions & 2 deletions src/main/java/com/powsybl/openloadflow/sa/WoodburyDcSecurityAnalysis.java
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Original file line number Diff line number Diff line change
Expand Up @@ -68,8 +68,11 @@ protected ReportNode createSaRootReportNode() {
@Override
protected DcLoadFlowParameters createParameters(LoadFlowParameters lfParameters, OpenLoadFlowParameters lfParametersExt, boolean breakers) {
DcLoadFlowParameters dcParameters = super.createParameters(lfParameters, lfParametersExt, breakers);
// connectivity break analysis does not handle zero impedance lines
dcParameters.getNetworkParameters().setMinImpedance(true);
dcParameters.getNetworkParameters()
// connectivity break analysis does not handle zero impedance lines
.setMinImpedance(true)
// ac emulation is not yet supported
.setHvdcAcEmulation(false);
// needed an equation to force angle to zero when a PST is lost
dcParameters.getEquationSystemCreationParameters().setForcePhaseControlOffAndAddAngle1Var(true);
return dcParameters;
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69 changes: 69 additions & 0 deletions src/test/java/com/powsybl/openloadflow/sa/OpenSecurityAnalysisTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -4034,4 +4034,73 @@ void testNoCc0Sc0() {
assertEquals(LoadFlowResult.ComponentResult.Status.CONVERGED, saResultAll.getPreContingencyResult().getStatus());
assertEquals(6, saResultAll.getPreContingencyResult().getNetworkResult().getBusResults().size()); // 6 buses in total
}

@ParameterizedTest
@ValueSource(booleans = {false, true})
void testDcSaHvdcLineContingency(boolean dcFastMode) {
Network network = HvdcNetworkFactory.createNetworkWithGenerators();

SecurityAnalysisParameters securityAnalysisParameters = new SecurityAnalysisParameters();
securityAnalysisParameters.getLoadFlowParameters().setDc(true).setHvdcAcEmulation(true);
OpenSecurityAnalysisParameters openSecurityAnalysisParameters = new OpenSecurityAnalysisParameters();
openSecurityAnalysisParameters.setDcFastMode(dcFastMode);
securityAnalysisParameters.addExtension(OpenSecurityAnalysisParameters.class, openSecurityAnalysisParameters);

List<StateMonitor> monitors = createAllBranchesMonitors(network);
List<Contingency> contingencies = List.of(new Contingency("hvdc34+g1", List.of(new HvdcLineContingency("hvdc34"), new GeneratorContingency("g1"))));
SecurityAnalysisResult result = runSecurityAnalysis(network, contingencies, monitors, securityAnalysisParameters);

// apply contingency by hand
network.getHvdcLine("hvdc34").remove();
network.getGenerator("g1").disconnect();
// run load flow to compare results
loadFlowRunner.run(network, securityAnalysisParameters.getLoadFlowParameters());

// post-contingency tests
PostContingencyResult postContingencyResult = getPostContingencyResult(result, "hvdc34+g1");
assertEquals(network.getLine("l12").getTerminal1().getP(), postContingencyResult.getNetworkResult().getBranchResult("l12").getP1(), LoadFlowAssert.DELTA_POWER);
assertEquals(network.getLine("l13").getTerminal1().getP(), postContingencyResult.getNetworkResult().getBranchResult("l13").getP1(), LoadFlowAssert.DELTA_POWER);
assertEquals(network.getLine("l23").getTerminal1().getP(), postContingencyResult.getNetworkResult().getBranchResult("l23").getP1(), LoadFlowAssert.DELTA_POWER);
assertEquals(network.getLine("l25").getTerminal1().getP(), postContingencyResult.getNetworkResult().getBranchResult("l25").getP1(), LoadFlowAssert.DELTA_POWER);
assertEquals(network.getLine("l45").getTerminal1().getP(), postContingencyResult.getNetworkResult().getBranchResult("l45").getP1(), LoadFlowAssert.DELTA_POWER);
assertEquals(network.getLine("l46").getTerminal1().getP(), postContingencyResult.getNetworkResult().getBranchResult("l46").getP1(), LoadFlowAssert.DELTA_POWER);
assertEquals(network.getLine("l56").getTerminal1().getP(), postContingencyResult.getNetworkResult().getBranchResult("l56").getP1(), LoadFlowAssert.DELTA_POWER);
}

@ParameterizedTest
@ValueSource(booleans = {false, true})
void testDcSaHvdcLineInAcEmulationContingency(boolean dcFastMode) {
Network network = HvdcNetworkFactory.createHvdcInAcEmulationInSymetricNetwork();
network.newLine()
.setId("l12_2")
.setBus1("b1")
.setConnectableBus1("b1")
.setBus2("b2")
.setConnectableBus2("b2")
.setR(0)
.setX(0.2f)
.add();

SecurityAnalysisParameters securityAnalysisParameters = new SecurityAnalysisParameters();
securityAnalysisParameters.getLoadFlowParameters().setDc(true).setHvdcAcEmulation(true);
OpenSecurityAnalysisParameters openSecurityAnalysisParameters = new OpenSecurityAnalysisParameters();
openSecurityAnalysisParameters.setDcFastMode(dcFastMode);
securityAnalysisParameters.addExtension(OpenSecurityAnalysisParameters.class, openSecurityAnalysisParameters);

List<StateMonitor> monitors = createAllBranchesMonitors(network);
List<Contingency> contingencies = List.of(Contingency.hvdcLine("hvdc12"));
SecurityAnalysisResult result = runSecurityAnalysis(network, contingencies, monitors, securityAnalysisParameters);

// apply contingency by hand
network.getHvdcLine("hvdc12").remove();
// run load flow to compare results
loadFlowRunner.run(network, securityAnalysisParameters.getLoadFlowParameters());

// post-contingency tests
PostContingencyResult hvdcContingencyResult = getPostContingencyResult(result, "hvdc12");
assertEquals(network.getLine("l12").getTerminal1().getP(), hvdcContingencyResult.getNetworkResult().getBranchResult("l12").getP1(), LoadFlowAssert.DELTA_POWER);
assertEquals(network.getLine("l12").getTerminal2().getP(), hvdcContingencyResult.getNetworkResult().getBranchResult("l12").getP2(), LoadFlowAssert.DELTA_POWER);
assertEquals(network.getLine("l12_2").getTerminal1().getP(), hvdcContingencyResult.getNetworkResult().getBranchResult("l12_2").getP1(), LoadFlowAssert.DELTA_POWER);
assertEquals(network.getLine("l12_2").getTerminal2().getP(), hvdcContingencyResult.getNetworkResult().getBranchResult("l12_2").getP2(), LoadFlowAssert.DELTA_POWER);
}
}
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