Modified tests to keep same behaviour with HVDC line resistance in AC…

… Emulation
powsybl · Jul 10, 2024 · 00ec727 · 00ec727
1 parent a15c4e7
commit 00ec727
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diff --git a/src/test/java/com/powsybl/openloadflow/EquationsTest.java b/src/test/java/com/powsybl/openloadflow/EquationsTest.java
@@ -257,6 +257,7 @@ void hvdcTest() {
  Mockito.doReturn(false).when(hvdc).isDisabled();
  Mockito.doReturn(DROOP).when(hvdc).getDroop();
  Mockito.doReturn(P_0).when(hvdc).getP0();
+ Mockito.doReturn(0d).when(hvdc).getR();
  Mockito.doReturn(Double.MAX_VALUE).when(hvdc).getPMaxFromCS1toCS2();
  Mockito.doReturn(Double.MAX_VALUE).when(hvdc).getPMaxFromCS2toCS1();
  LfVscConverterStationImpl station1 = Mockito.mock(LfVscConverterStationImpl.class, new RuntimeExceptionAnswer());

diff --git a/src/test/java/com/powsybl/openloadflow/ac/AcLoadFlowVscTest.java b/src/test/java/com/powsybl/openloadflow/ac/AcLoadFlowVscTest.java
@@ -267,6 +267,20 @@ void testHvdcPowerAcEmulation() {
  LoadFlow.Runner loadFlowRunner = new LoadFlow.Runner(new OpenLoadFlowProvider(new DenseMatrixFactory()));
  LoadFlowResult result = loadFlowRunner.run(network, new LoadFlowParameters());
  assertTrue(result.isFullyConverged());
+ // AC Emulation takes into account cable loss
+ assertActivePowerEquals(198.158, network.getHvdcConverterStation("cs2").getTerminal());
+ assertActivePowerEquals(-193.799, network.getHvdcConverterStation("cs3").getTerminal());
+ assertActivePowerEquals(-304.359, network.getGenerator("g1").getTerminal());
+ assertActivePowerEquals(300.0, network.getLoad("l4").getTerminal());
+ }
+
+ @Test
+ void testHvdcPowerAcEmulationWithoutR() {
+ Network network = HvdcNetworkFactory.createHvdcLinkedByTwoLinesAndSwitch();
+ network.getHvdcLine("hvdc23").setR(0d); //Removing resistance to ignore cable loss
+ LoadFlow.Runner loadFlowRunner = new LoadFlow.Runner(new OpenLoadFlowProvider(new DenseMatrixFactory()));
+ LoadFlowResult result = loadFlowRunner.run(network, new LoadFlowParameters());
+ assertTrue(result.isFullyConverged());
  assertActivePowerEquals(198.158, network.getHvdcConverterStation("cs2").getTerminal());
  assertActivePowerEquals(-193.822, network.getHvdcConverterStation("cs3").getTerminal());
  assertActivePowerEquals(-304.335, network.getGenerator("g1").getTerminal());
@@ -450,6 +464,7 @@ void testAcEmuWithOperationalLimits() {
  Network network = HvdcNetworkFactory.createHvdcLinkedByTwoLinesAndSwitch(HvdcConverterStation.HvdcType.VSC);
  // without limit p=195
  network.getHvdcLine("hvdc23")
+ .setR(0d) //Removing resistance to ignore cable loss
  .newExtension(HvdcOperatorActivePowerRangeAdder.class)
  .withOprFromCS2toCS1(180)
  .withOprFromCS1toCS2(170)
@@ -482,6 +497,7 @@ void testAcEmuAndPMax() {
  Network network = HvdcNetworkFactory.createHvdcLinkedByTwoLinesAndSwitch(HvdcConverterStation.HvdcType.VSC);
  // without limit p=195
  network.getHvdcLine("hvdc23")
+ .setR(0d) //Removing resistance to ignore cable loss
  .setMaxP(170);
 
  LoadFlow.Runner loadFlowRunner = new LoadFlow.Runner(new OpenLoadFlowProvider(new DenseMatrixFactory()));

diff --git a/src/test/java/com/powsybl/openloadflow/sa/OpenSecurityAnalysisWithActionsTest.java b/src/test/java/com/powsybl/openloadflow/sa/OpenSecurityAnalysisWithActionsTest.java
@@ -1284,6 +1284,7 @@ void testVSCLossAcEmulation() {
  // but other converter station keeps its voltage control capability.
  // remedial action re-enables the ac emulation of the hvdc line.
  Network network = HvdcNetworkFactory.createHvdcLinkedByTwoLinesAndSwitch(HvdcConverterStation.HvdcType.VSC);
+ network.getHvdcLine("hvdc23").setR(0d); //Removing resistance to ignore cable loss
  List<Contingency> contingencies = List.of(new Contingency("contingency", new LineContingency("l12")));
  List<Action> actions = List.of(new SwitchAction("action", "s2", false));
  List<OperatorStrategy> operatorStrategies = List.of(new OperatorStrategy("strategy",
@@ -1330,6 +1331,7 @@ void testHvdcDisconnectedThenConnectedByStrategy() {
  List<StateMonitor> monitors = createNetworkMonitors(network);
 
  // with AC emulation first
+ network.getHvdcLine("hvdc23").setR(0d); //Removing resistance to ignore cable loss in AC emulation
  SecurityAnalysisResult result = runSecurityAnalysis(network, contingencies, monitors, new SecurityAnalysisParameters(),
  operatorStrategies, actions, ReportNode.NO_OP);
 
@@ -1349,6 +1351,7 @@ void testHvdcDisconnectedThenConnectedByStrategy() {
  // without AC emulation
  SecurityAnalysisParameters parameters = new SecurityAnalysisParameters();
  parameters.getLoadFlowParameters().setHvdcAcEmulation(false);
+ network.getHvdcLine("hvdc23").setR(0.1d); //Putting back resistance of the cable to keep same old behaviour
  SecurityAnalysisResult result2 = runSecurityAnalysis(network, contingencies, monitors, parameters,
  operatorStrategies, actions, ReportNode.NO_OP);