LfTieLineBranch.java
/**
* Copyright (c) 2019, RTE (http://www.rte-france.com)
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
* SPDX-License-Identifier: MPL-2.0
*/
package com.powsybl.openloadflow.network.impl;
import com.powsybl.iidm.network.*;
import com.powsybl.openloadflow.network.*;
import com.powsybl.openloadflow.sa.LimitReductionManager;
import com.powsybl.openloadflow.util.PerUnit;
import com.powsybl.security.results.BranchResult;
import java.util.List;
import java.util.Objects;
/**
* @author Geoffroy Jamgotchian {@literal <geoffroy.jamgotchian at rte-france.com>}
*/
public class LfTieLineBranch extends AbstractImpedantLfBranch {
private final Ref<DanglingLine> danglingLine1Ref;
private final Ref<DanglingLine> danglingLine2Ref;
private final String id;
protected LfTieLineBranch(LfNetwork network, LfBus bus1, LfBus bus2, PiModel piModel, TieLine tieLine, LfNetworkParameters parameters) {
super(network, bus1, bus2, piModel, parameters);
this.danglingLine1Ref = Ref.create(tieLine.getDanglingLine1(), parameters.isCacheEnabled());
this.danglingLine2Ref = Ref.create(tieLine.getDanglingLine2(), parameters.isCacheEnabled());
this.id = tieLine.getId();
}
public static LfTieLineBranch create(TieLine line, LfNetwork network, LfBus bus1, LfBus bus2, LfNetworkParameters parameters) {
Objects.requireNonNull(line);
Objects.requireNonNull(network);
Objects.requireNonNull(parameters);
double nominalV2 = line.getDanglingLine2().getTerminal().getVoltageLevel().getNominalV();
double zb = PerUnit.zb(nominalV2);
PiModel piModel = new SimplePiModel()
.setR1(1 / Transformers.getRatioPerUnitBase(line))
.setR(line.getR() / zb)
.setX(line.getX() / zb)
.setG1(line.getG1() * zb)
.setG2(line.getG2() * zb)
.setB1(line.getB1() * zb)
.setB2(line.getB2() * zb);
return new LfTieLineBranch(network, bus1, bus2, piModel, line, parameters);
}
@Override
public String getId() {
return id;
}
@Override
public List<String> getOriginalIds() {
return List.of(id, danglingLine1Ref.get().getId(), danglingLine2Ref.get().getId());
}
@Override
public BranchType getBranchType() {
return BranchType.TIE_LINE;
}
public DanglingLine getHalf1() {
return danglingLine1Ref.get();
}
public DanglingLine getHalf2() {
return danglingLine2Ref.get();
}
@Override
public List<BranchResult> createBranchResult(double preContingencyBranchP1, double preContingencyBranchOfContingencyP1, boolean createExtension) {
double flowTransfer = Double.NaN;
if (!Double.isNaN(preContingencyBranchP1) && !Double.isNaN(preContingencyBranchOfContingencyP1)) {
flowTransfer = (p1.eval() * PerUnit.SB - preContingencyBranchP1) / preContingencyBranchOfContingencyP1;
}
double nominalV1 = getHalf1().getTerminal().getVoltageLevel().getNominalV();
double nominalV2 = getHalf2().getTerminal().getVoltageLevel().getNominalV();
double currentScale1 = PerUnit.ib(nominalV1);
double currentScale2 = PerUnit.ib(nominalV2);
var branchResult = new BranchResult(getId(), p1.eval() * PerUnit.SB, q1.eval() * PerUnit.SB, currentScale1 * i1.eval(),
p2.eval() * PerUnit.SB, q2.eval() * PerUnit.SB, currentScale2 * i2.eval(), flowTransfer);
var half1Result = new BranchResult(getHalf1().getId(), p1.eval() * PerUnit.SB, q1.eval() * PerUnit.SB, currentScale1 * i1.eval(),
Double.NaN, Double.NaN, Double.NaN, flowTransfer);
var half2Result = new BranchResult(getHalf2().getId(), p2.eval() * PerUnit.SB, q2.eval() * PerUnit.SB, currentScale2 * i2.eval(),
Double.NaN, Double.NaN, Double.NaN, flowTransfer);
if (createExtension) {
branchResult.addExtension(OlfBranchResult.class, new OlfBranchResult(piModel.getR1(), piModel.getContinuousR1(),
getV1() * nominalV1, getV2() * nominalV2, Math.toDegrees(getAngle1()), Math.toDegrees(getAngle2())));
half1Result.addExtension(OlfBranchResult.class, new OlfBranchResult(piModel.getR1(), piModel.getContinuousR1(),
getV1() * nominalV1, Double.NaN, Math.toDegrees(getAngle1()), Double.NaN));
half2Result.addExtension(OlfBranchResult.class, new OlfBranchResult(piModel.getR1(), piModel.getContinuousR1(),
Double.NaN, getV2() * nominalV2, Double.NaN, Math.toDegrees(getAngle2())));
}
return List.of(branchResult, half1Result, half2Result);
}
@Override
public List<LfLimit> getLimits1(final LimitType type, LimitReductionManager limitReductionManager) {
switch (type) {
case ACTIVE_POWER:
return getLimits1(type, getHalf1()::getActivePowerLimits, limitReductionManager);
case APPARENT_POWER:
return getLimits1(type, getHalf1()::getApparentPowerLimits, limitReductionManager);
case CURRENT:
return getLimits1(type, getHalf1()::getCurrentLimits, limitReductionManager);
case VOLTAGE:
default:
throw new UnsupportedOperationException(String.format("Getting %s limits is not supported.", type.name()));
}
}
@Override
public List<LfLimit> getLimits2(final LimitType type, LimitReductionManager limitReductionManager) {
switch (type) {
case ACTIVE_POWER:
return getLimits2(type, getHalf2()::getActivePowerLimits, limitReductionManager);
case APPARENT_POWER:
return getLimits2(type, getHalf2()::getApparentPowerLimits, limitReductionManager);
case CURRENT:
return getLimits2(type, getHalf2()::getCurrentLimits, limitReductionManager);
case VOLTAGE:
default:
throw new UnsupportedOperationException(String.format("Getting %s limits is not supported.", type.name()));
}
}
@Override
public double[] getLimitReductions(TwoSides side, LimitReductionManager limitReductionManager, LoadingLimits limits) {
return new double[] {};
}
@Override
public void updateState(LfNetworkStateUpdateParameters parameters, LfNetworkUpdateReport updateReport) {
updateFlows(p1.eval(), q1.eval(), p2.eval(), q2.eval());
}
@Override
public void updateFlows(double p1, double q1, double p2, double q2) {
getHalf1().getTerminal().setP(p1 * PerUnit.SB)
.setQ(q1 * PerUnit.SB);
getHalf2().getTerminal().setP(p2 * PerUnit.SB)
.setQ(q2 * PerUnit.SB);
}
@Override
public boolean hasPhaseControllerCapability() {
return false;
}
}