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AC security analysis: make contingency propagation optional #571

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merged 10 commits into from
Jul 5, 2022
Merged

AC security analysis: make contingency propagation optional #571

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9f000b5
Add specific parameter for contingency propagation.
annetill Jun 29, 2022
71c8771
Merge branch 'main' into propagated-contingency-refactoring
annetill Jun 29, 2022
24cc135
Save work.
annetill Jun 29, 2022
71617b3
No contingency propagation for sensitivity analysis.
annetill Jun 29, 2022
477501b
Fix code smells.
annetill Jun 29, 2022
5e1e8d8
Add unit test.
annetill Jun 29, 2022
cfb7260
Fix test.
annetill Jun 29, 2022
81b8dce
Factorize code
flo-dup Jul 1, 2022
b3c2374
Process all disconnected terminals at once
flo-dup Jul 1, 2022
e82db66
Merge branch 'main' into propagated-contingency-refactoring
geofjamg Jul 5, 2022
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57 changes: 32 additions & 25 deletions src/main/java/com/powsybl/openloadflow/network/impl/ContingencyTripping.java
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,8 @@
*/
public class ContingencyTripping {

private static final ContingencyTripping NO_OP_TRIPPING = new ContingencyTripping(Collections.emptyList());

private final List<? extends Terminal> terminals;

public ContingencyTripping(List<? extends Terminal> terminals) {
Expand All @@ -26,54 +28,59 @@ public ContingencyTripping(Terminal terminal) {
this(Collections.singletonList(terminal));
}

public static ContingencyTripping createBranchTripping(Network network, String branchId) {
return createBranchTripping(network, branchId, null);
public static ContingencyTripping createBranchTripping(Network network, Branch<?> branch) {
return createBranchTripping(network, branch, null);
}

public static ContingencyTripping createBranchTripping(Network network, String branchId, String voltageLevelId) {
public static ContingencyTripping createBranchTripping(Network network, Branch<?> branch, String voltageLevelId) {
Objects.requireNonNull(network);
Objects.requireNonNull(branchId);

Branch<?> branch = network.getBranch(branchId);
if (branch == null) {
throw new PowsyblException("Branch '" + branchId + "' not found in the network");
}
Objects.requireNonNull(branch);

if (voltageLevelId != null) {
if (voltageLevelId.equals(branch.getTerminal1().getVoltageLevel().getId())) {
return new ContingencyTripping(branch.getTerminal1());
} else if (voltageLevelId.equals(branch.getTerminal2().getVoltageLevel().getId())) {
return new ContingencyTripping(branch.getTerminal2());
} else {
throw new PowsyblException("VoltageLevel '" + voltageLevelId + "' not connected to branch '" + branchId + "'");
throw new PowsyblException("VoltageLevel '" + voltageLevelId + "' not connected to branch '" + branch.getId() + "'");
}
} else {
return new ContingencyTripping(branch.getTerminals());
}
}

public static ContingencyTripping createDanglingLineTripping(Network network, String dlId) {
public static ContingencyTripping createInjectionTripping(Network network, Injection<?> injection) {
Objects.requireNonNull(network);
Objects.requireNonNull(dlId);

DanglingLine danglingLine = network.getDanglingLine(dlId);
if (danglingLine == null) {
throw new PowsyblException("Dangling line '" + dlId + "' not found in the network");
}
Objects.requireNonNull(injection);

return new ContingencyTripping(danglingLine.getTerminal());
return new ContingencyTripping(injection.getTerminal());
}

public static ContingencyTripping createThreeWindingsTransformerTripping(Network network, String twtId) {
public static ContingencyTripping createThreeWindingsTransformerTripping(Network network, ThreeWindingsTransformer twt) {
Objects.requireNonNull(network);
Objects.requireNonNull(twtId);
Objects.requireNonNull(twt);

ThreeWindingsTransformer twt = network.getThreeWindingsTransformer(twtId);
if (twt == null) {
throw new PowsyblException("Three windings transformer '" + twtId + "' not found in the network");
}
return new ContingencyTripping(twt.getTerminals());
}

return new ContingencyTripping(List.of(twt.getLeg1().getTerminal(), twt.getLeg2().getTerminal(), twt.getLeg3().getTerminal()));
public static ContingencyTripping createContingencyTripping(Network network, Identifiable<?> identifiable) {
switch (identifiable.getType()) {
case LINE:
case TWO_WINDINGS_TRANSFORMER:
return ContingencyTripping.createBranchTripping(network, (Branch<?>) identifiable);
case DANGLING_LINE:
case GENERATOR:
case LOAD:
case SHUNT_COMPENSATOR:
return ContingencyTripping.createInjectionTripping(network, (Injection<?>) identifiable);
case THREE_WINDINGS_TRANSFORMER:
return ContingencyTripping.createThreeWindingsTransformerTripping(network, (ThreeWindingsTransformer) identifiable);
case HVDC_LINE:
case SWITCH:
return ContingencyTripping.NO_OP_TRIPPING;
default:
throw new UnsupportedOperationException("Unsupported contingency element type: " + identifiable.getType());
}
}

public void traverse(Set<Switch> switchesToOpen, Set<Terminal> terminalsToDisconnect) {
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