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| 1 | +/** |
| 2 | + * Copyright (c) 2022, RTE (http://www.rte-france.com) |
| 3 | + * This Source Code Form is subject to the terms of the Mozilla Public |
| 4 | + * License, v. 2.0. If a copy of the MPL was not distributed with this |
| 5 | + * file, You can obtain one at http://mozilla.org/MPL/2.0/. |
| 6 | + * SPDX-License-Identifier: MPL-2.0 |
| 7 | + */ |
| 8 | +package com.powsybl.openloadflow.fastrestart; |
| 9 | + |
| 10 | +import com.powsybl.commons.report.ReportNode; |
| 11 | +import com.powsybl.iidm.network.*; |
| 12 | +import com.powsybl.loadflow.LoadFlowParameters; |
| 13 | +import com.powsybl.openloadflow.OpenLoadFlowParameters; |
| 14 | +import com.powsybl.openloadflow.dc.DcLoadFlowContext; |
| 15 | +import com.powsybl.openloadflow.dc.DcLoadFlowEngine; |
| 16 | +import com.powsybl.openloadflow.dc.DcLoadFlowParameters; |
| 17 | +import com.powsybl.openloadflow.dc.DcLoadFlowResult; |
| 18 | +import com.powsybl.openloadflow.lf.outerloop.OuterLoopResult; |
| 19 | +import com.powsybl.openloadflow.network.LfNetwork; |
| 20 | +import com.powsybl.openloadflow.network.LfTopoConfig; |
| 21 | +import com.powsybl.openloadflow.network.impl.LfLegBranch; |
| 22 | +import com.powsybl.openloadflow.network.impl.LfNetworkList; |
| 23 | +import com.powsybl.openloadflow.network.impl.Networks; |
| 24 | +import org.slf4j.Logger; |
| 25 | +import org.slf4j.LoggerFactory; |
| 26 | + |
| 27 | +import java.util.List; |
| 28 | +import java.util.Objects; |
| 29 | +import java.util.stream.Collectors; |
| 30 | + |
| 31 | +/** |
| 32 | + * @author Geoffroy Jamgotchian {@literal <geoffroy.jamgotchian at rte-france.com>} |
| 33 | + */ |
| 34 | +public class DcLoadFlowFromCache { |
| 35 | + |
| 36 | + private static final Logger LOGGER = LoggerFactory.getLogger(DcLoadFlowFromCache.class); |
| 37 | + |
| 38 | + private final Network network; |
| 39 | + |
| 40 | + private final LoadFlowParameters parameters; |
| 41 | + |
| 42 | + private final OpenLoadFlowParameters parametersExt; |
| 43 | + |
| 44 | + private final DcLoadFlowParameters dcParameters; |
| 45 | + |
| 46 | + private final ReportNode reportNode; |
| 47 | + |
| 48 | + public DcLoadFlowFromCache(Network network, LoadFlowParameters parameters, OpenLoadFlowParameters parametersExt, |
| 49 | + DcLoadFlowParameters dcParameters, ReportNode reportNode) { |
| 50 | + this.network = Objects.requireNonNull(network); |
| 51 | + this.parameters = Objects.requireNonNull(parameters); |
| 52 | + this.parametersExt = Objects.requireNonNull(parametersExt); |
| 53 | + this.dcParameters = Objects.requireNonNull(dcParameters); |
| 54 | + this.reportNode = Objects.requireNonNull(reportNode); |
| 55 | + } |
| 56 | + |
| 57 | + private void configureTopoConfig(LfTopoConfig topoConfig) { |
| 58 | + for (String switchId : parametersExt.getActionableSwitchesIds()) { |
| 59 | + Switch sw = network.getSwitch(switchId); |
| 60 | + if (sw != null) { |
| 61 | + if (sw.isOpen()) { |
| 62 | + topoConfig.getSwitchesToClose().add(sw); |
| 63 | + } else { |
| 64 | + topoConfig.getSwitchesToOpen().add(sw); |
| 65 | + } |
| 66 | + } else { |
| 67 | + LOGGER.warn("Actionable switch '{}' does not exist", switchId); |
| 68 | + } |
| 69 | + } |
| 70 | + for (String transformerId : parametersExt.getActionableTransformersIds()) { |
| 71 | + Branch<?> branch = network.getBranch(transformerId); |
| 72 | + if (branch != null) { |
| 73 | + topoConfig.addBranchIdWithRtcToRetain(transformerId); |
| 74 | + topoConfig.addBranchIdWithPtcToRetain(transformerId); |
| 75 | + } else { |
| 76 | + ThreeWindingsTransformer tw3 = network.getThreeWindingsTransformer(transformerId); |
| 77 | + if (tw3 != null) { |
| 78 | + for (ThreeSides side : ThreeSides.values()) { |
| 79 | + topoConfig.addBranchIdWithRtcToRetain(LfLegBranch.getId(side, transformerId)); |
| 80 | + topoConfig.addBranchIdWithPtcToRetain(LfLegBranch.getId(side, transformerId)); |
| 81 | + } |
| 82 | + } |
| 83 | + LOGGER.warn("Actionable transformer '{}' does not exist", transformerId); |
| 84 | + } |
| 85 | + } |
| 86 | + if (topoConfig.isBreaker()) { |
| 87 | + dcParameters.getNetworkParameters().setBreakers(true); |
| 88 | + } |
| 89 | + } |
| 90 | + |
| 91 | + private List<DcLoadFlowContext> initContexts(NetworkCache.Entry<DcLoadFlowContext> entry) { |
| 92 | + List<DcLoadFlowContext> contexts; |
| 93 | + LfTopoConfig topoConfig = new LfTopoConfig(); |
| 94 | + configureTopoConfig(topoConfig); |
| 95 | + |
| 96 | + // Because of caching, we only need to switch back to working variant but not to remove the variant, thus |
| 97 | + // WorkingVariantReverter is used instead of DefaultVariantCleaner |
| 98 | + try (LfNetworkList lfNetworkList = Networks.loadWithReconnectableElements(network, topoConfig, dcParameters.getNetworkParameters(), |
| 99 | + LfNetworkList.WorkingVariantReverter::new, reportNode)) { |
| 100 | + contexts = lfNetworkList.getList() |
| 101 | + .stream() |
| 102 | + .map(n -> new DcLoadFlowContext(n, dcParameters)) |
| 103 | + .collect(Collectors.toList()); |
| 104 | + entry.setContexts(contexts); |
| 105 | + LfNetworkList.VariantCleaner variantCleaner = lfNetworkList.getVariantCleaner(); |
| 106 | + if (variantCleaner != null) { |
| 107 | + entry.setTmpVariantId(variantCleaner.getTmpVariantId()); |
| 108 | + } |
| 109 | + } |
| 110 | + return contexts; |
| 111 | + } |
| 112 | + |
| 113 | + private static DcLoadFlowResult run(DcLoadFlowContext context) { |
| 114 | + if (context.getNetwork().getValidity() != LfNetwork.Validity.VALID) { |
| 115 | + return DcLoadFlowResult.createNoCalculationResult(context.getNetwork()); |
| 116 | + } |
| 117 | + if (context.getNetwork().isNetworkUpdated()) { |
| 118 | + DcLoadFlowResult result = new DcLoadFlowEngine(context) |
| 119 | + .run(); |
| 120 | + context.getNetwork().setNetworkUpdated(false); |
| 121 | + return result; |
| 122 | + } |
| 123 | + return new DcLoadFlowResult(context.getNetwork(), 0, true, OuterLoopResult.stable(), 0d, 0d); |
| 124 | + } |
| 125 | + |
| 126 | + public List<DcLoadFlowResult> run() { |
| 127 | + NetworkCache.Entry<DcLoadFlowContext> entry = NetworkCache.INSTANCE.getDc(network, parameters); |
| 128 | + List<DcLoadFlowContext> contexts = entry.getContexts(); |
| 129 | + if (contexts == null) { |
| 130 | + contexts = initContexts(entry); |
| 131 | + } |
| 132 | + return contexts.stream() |
| 133 | + .map(DcLoadFlowFromCache::run) |
| 134 | + .collect(Collectors.toList()); |
| 135 | + } |
| 136 | +} |
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