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Fix AC voltage sensitivities #539

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merged 6 commits into from
Jun 7, 2022
Merged

Fix AC voltage sensitivities #539

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4690a70
Test PV PQ switch in voltage sensitivity
Hadrien-Godard May 27, 2022
8c526e3
Merge remote-tracking branch 'origin/main' into fix-voltage-ac-sensit…
Hadrien-Godard May 30, 2022
ab3bf07
Beginning of test
Hadrien-Godard May 30, 2022
7b60f84
Finish test
Hadrien-Godard May 30, 2022
bd02e73
Merge.
annetill Jun 7, 2022
5111b9a
Remove comment.
annetill Jun 7, 2022
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23 changes: 23 additions & 0 deletions src/test/java/com/powsybl/openloadflow/sensi/ac/AcSensitivityAnalysisContingenciesTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -994,4 +994,27 @@ void testContingencyOnHvdcVsc2() {
assertEquals(result2.getBranchFlow1FunctionReferenceValue(null, "l25"), result.getBranchFlow1FunctionReferenceValue("hvdc34", "l25"), LoadFlowAssert.DELTA_POWER);
assertEquals(result2.getBranchFlow1FunctionReferenceValue(null, "l56"), result.getBranchFlow1FunctionReferenceValue("hvdc34", "l56"), LoadFlowAssert.DELTA_POWER);
}

@Test
void testVoltageSensitivityConnectivityLoss() {
Network network = ConnectedComponentNetworkFactory.createTwoComponentWithGeneratorOnOneSide();

SensitivityAnalysisParameters sensiParameters = createParameters(false, "b1_vl_0", true);
sensiParameters.getLoadFlowParameters().setBalanceType(LoadFlowParameters.BalanceType.PROPORTIONAL_TO_GENERATION_P_MAX);

List<Contingency> contingencies = List.of(new Contingency("l34", new BranchContingency("l34")), new Contingency("l13+l23", new BranchContingency("l13"), new BranchContingency("l23")));

List<SensitivityFactor> factors = List.of(createBusVoltagePerTargetV("b4", "g3", "l34"), createBusVoltagePerTargetV("b1", "g3", "l13+l23"), createBusVoltagePerTargetV("b4", "g3", "l13+l23"));

SensitivityAnalysisResult result = sensiRunner.run(network, factors, contingencies, Collections.emptyList(), sensiParameters);

assertEquals(3, result.getValues().size());

assertEquals(0.0, result.getBusVoltageSensitivityValue("l34", "g3", "b4"));
assertEquals(Double.NaN, result.getBusVoltageFunctionReferenceValue("l34", "b4"));
assertEquals(0.0, result.getBusVoltageSensitivityValue("l13+l23", "g3", "b1"));
assertEquals(0.9798, result.getBusVoltageFunctionReferenceValue("l13+l23", "b1"), LoadFlowAssert.DELTA_V);
assertEquals(Double.NaN, result.getBusVoltageSensitivityValue("l13+l23", "g3", "b4"));
assertEquals(Double.NaN, result.getBusVoltageFunctionReferenceValue("l13+l23", "b4"));
}
}
22 changes: 22 additions & 0 deletions src/test/java/com/powsybl/openloadflow/sensi/ac/AcSensitivityAnalysisTest.java
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Expand Up @@ -1045,4 +1045,26 @@ void lineWithDifferentNominalVoltageTest() {
assertEquals(602.302, network.getTwoWindingsTransformer("NHV2_NLOAD").getTerminal1().getP(), LoadFlowAssert.DELTA_POWER);
assertEquals(-601.430, network.getTwoWindingsTransformer("NHV2_NLOAD").getTerminal2().getP(), LoadFlowAssert.DELTA_POWER);
}

@Test
void testWithPvPqSwitch() {
SensitivityAnalysisParameters sensiParameters = createParameters(false, "b1_vl_0", false);
sensiParameters.getLoadFlowParameters().setBalanceType(LoadFlowParameters.BalanceType.PROPORTIONAL_TO_GENERATION_P_MAX);

// this network has no G or B, so we should be very close to DC results
Network network = FourBusNetworkFactory.createBaseNetwork();
network.getLoad("d2").setQ0(0.4);
network.getLoad("d3").setQ0(1.6);
network.getGenerator("g4").newMinMaxReactiveLimits().setMinQ(-0.5).setMaxQ(0.5).add();

runLf(network, sensiParameters.getLoadFlowParameters());

List<SensitivityFactor> factors = List.of(createBusVoltagePerTargetV("b3", "g4"));

SensitivityAnalysisResult result = sensiRunner.run(network, factors, Collections.emptyList(), Collections.emptyList(), sensiParameters);

assertEquals(1, result.getValues().size());

assertEquals(0.0, result.getBusVoltageSensitivityValue("g4", "b3"));
}
}