EMT_Ph3_RXLoad.cpp

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/* Copyright 2017-2021 Institute for Automation of Complex Power Systems,
 *                     EONERC, RWTH Aachen University
 *
 * 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 https://mozilla.org/MPL/2.0/.
 *********************************************************************************/
 
#include <dpsim-models/EMT/EMT_Ph3_RXLoad.h>
 
using namespace CPS;
 
EMT::Ph3::RXLoad::RXLoad(String uid, String name, Logger::Level logLevel)
    : CompositePowerComp<Real>(uid, name, true, true, Logger::Level::trace),
      mActivePower(mAttributes->create<Matrix>("P")),
      mReactivePower(mAttributes->create<Matrix>("Q")),
      mNomVoltage(mAttributes->create<Real>("V_nom")),
      mReactanceInSeries(false) {
  mPhaseType = PhaseType::ABC;
  setTerminalNumber(1);
 
  SPDLOG_LOGGER_INFO(mSLog, "Create {} {}", this->type(), name);
  **mIntfVoltage = Matrix::Zero(3, 1);
  **mIntfCurrent = Matrix::Zero(3, 1);
  mSLog->flush();
}
 
EMT::Ph3::RXLoad::RXLoad(String name, Logger::Level logLevel)
    : RXLoad(name, name, logLevel) {}
 
EMT::Ph3::RXLoad::RXLoad(String name, Matrix activePower, Matrix reactivePower,
                         Real volt, Logger::Level logLevel)
    : RXLoad(name, logLevel) {
  **mActivePower = activePower;
  **mReactivePower = reactivePower;
  mPower = MatrixComp::Zero(3, 3);
  mPower << Complex((**mActivePower)(0, 0), (**mReactivePower)(0, 0)),
      Complex((**mActivePower)(0, 1), (**mReactivePower)(0, 1)),
      Complex((**mActivePower)(0, 2), (**mReactivePower)(0, 2)),
      Complex((**mActivePower)(1, 0), (**mReactivePower)(1, 0)),
      Complex((**mActivePower)(1, 1), (**mReactivePower)(1, 1)),
      Complex((**mActivePower)(1, 2), (**mReactivePower)(1, 2)),
      Complex((**mActivePower)(2, 0), (**mReactivePower)(2, 0)),
      Complex((**mActivePower)(2, 1), (**mReactivePower)(2, 1)),
      Complex((**mActivePower)(2, 2), (**mReactivePower)(2, 2));
 
  **mNomVoltage = volt;
  initPowerFromTerminal = false;
}
 
SimPowerComp<Real>::Ptr EMT::Ph3::RXLoad::clone(String name) {
  auto copy = RXLoad::make(name, mLogLevel);
  if (!initPowerFromTerminal)
    copy->setParameters(**mActivePower, **mReactivePower, **mNomVoltage,
                        mReactanceInSeries);
  return copy;
}
 
void EMT::Ph3::RXLoad::setParameters(Matrix activePower, Matrix reactivePower,
                                     Real volt, bool reactanceInSeries) {
  **mActivePower = activePower;
  **mReactivePower = reactivePower;
  mReactanceInSeries = reactanceInSeries;
 
  if (mReactanceInSeries) {
    setVirtualNodeNumber(1);
  }
  // complex power
  mPower = MatrixComp::Zero(3, 3);
  mPower(0, 0) = {(**mActivePower)(0, 0), (**mReactivePower)(0, 0)};
  mPower(1, 1) = {(**mActivePower)(1, 1), (**mReactivePower)(1, 1)};
  mPower(2, 2) = {(**mActivePower)(2, 2), (**mReactivePower)(2, 2)};
 
  **mNomVoltage = volt;
 
  SPDLOG_LOGGER_INFO(mSLog,
                     "\nActive Power [W]: {}"
                     "\nReactive Power [VAr]: {}",
                     Logger::matrixToString(**mActivePower),
                     Logger::matrixToString(**mReactivePower));
  SPDLOG_LOGGER_INFO(mSLog, "Nominal Voltage={} [V]", **mNomVoltage);
 
  initPowerFromTerminal = false;
}
 
void EMT::Ph3::RXLoad::createSubComponents() {
  if (mSubCompCreated)
    return;
  mSubCompCreated = true;
 
  // Intentionally empty: which of R/L/C exist depends on the load power sign, known only in
  // initializeParentFromNodesAndTerminals(), where the sub-components are created. Safe: any
  // series-mode virtual node is already declared in setParameters().
}
 
void EMT::Ph3::RXLoad::initializeParentFromNodesAndTerminals(Real frequency) {
  Real omega = 2. * PI * frequency;
 
  if (initPowerFromTerminal) {
    **mActivePower = Matrix::Zero(3, 3);
    (**mActivePower)(0, 0) = mTerminals[0]->singleActivePower() / 3.;
    (**mActivePower)(1, 1) = mTerminals[0]->singleActivePower() / 3.;
    (**mActivePower)(2, 2) = mTerminals[0]->singleActivePower() / 3.;
 
    **mReactivePower = Matrix::Zero(3, 3);
    (**mReactivePower)(0, 0) = mTerminals[0]->singleReactivePower() / 3.;
    (**mReactivePower)(1, 1) = mTerminals[0]->singleReactivePower() / 3.;
    (**mReactivePower)(2, 2) = mTerminals[0]->singleReactivePower() / 3.;
 
    // complex power
    mPower = MatrixComp::Zero(3, 3);
    mPower(0, 0) = {(**mActivePower)(0, 0), (**mReactivePower)(0, 0)};
    mPower(1, 1) = {(**mActivePower)(1, 1), (**mReactivePower)(1, 1)};
    mPower(2, 2) = {(**mActivePower)(2, 2), (**mReactivePower)(2, 2)};
 
    **mNomVoltage = std::abs(mTerminals[0]->initialSingleVoltage());
 
    SPDLOG_LOGGER_INFO(mSLog,
                       "\nActive Power [W]: {}"
                       "\nReactive Power [VAr]: {}",
                       Logger::matrixToString(**mActivePower),
                       Logger::matrixToString(**mReactivePower));
    SPDLOG_LOGGER_INFO(mSLog, "Nominal Voltage={} [V]", **mNomVoltage);
  }
 
  // Compute derived impedance values and create+parametrize sub-components
  // now that power and voltage are guaranteed to be known.
  if ((**mActivePower)(0, 0) != 0) {
    mResistance =
        std::pow(**mNomVoltage / sqrt(3), 2) * (**mActivePower).inverse();
  }
  if ((**mReactivePower)(0, 0) != 0)
    mReactance =
        std::pow(**mNomVoltage / sqrt(3), 2) * (**mReactivePower).inverse();
  else
    mReactance = Matrix::Zero(3, 3);
 
  if ((**mActivePower)(0, 0) != 0) {
    mSubResistor =
        std::make_shared<EMT::Ph3::Resistor>(**mName + "_res", mLogLevel);
    mSubResistor->setParameters(mResistance);
    if (mReactanceInSeries) {
      mSubResistor->connect({mTerminals[0]->node(), mVirtualNodes[0]});
    } else {
      mSubResistor->connect({SimNode::GND, mTerminals[0]->node()});
    }
    addMNASubComponent(mSubResistor, MNA_SUBCOMP_TASK_ORDER::TASK_BEFORE_PARENT,
                       MNA_SUBCOMP_TASK_ORDER::TASK_BEFORE_PARENT, true);
  }
 
  if (mReactance(0, 0) > 0) {
    mInductance = mReactance / omega;
 
    mSubInductor =
        std::make_shared<EMT::Ph3::Inductor>(**mName + "_ind", mLogLevel);
    mSubInductor->setParameters(mInductance);
    if (mReactanceInSeries) {
      mSubInductor->connect({SimNode::GND, mVirtualNodes[0]});
    } else {
      mSubInductor->connect({SimNode::GND, mTerminals[0]->node()});
    }
    addMNASubComponent(mSubInductor, MNA_SUBCOMP_TASK_ORDER::TASK_BEFORE_PARENT,
                       MNA_SUBCOMP_TASK_ORDER::TASK_BEFORE_PARENT, true);
  } else if (mReactance(0, 0) < 0) {
    mCapacitance = -1. / omega * mReactance.inverse();
 
    mSubCapacitor =
        std::make_shared<EMT::Ph3::Capacitor>(**mName + "_cap", mLogLevel);
    mSubCapacitor->setParameters(mCapacitance);
    if (mReactanceInSeries) {
      mSubCapacitor->connect({SimNode::GND, mVirtualNodes[0]});
    } else {
      mSubCapacitor->connect({SimNode::GND, mTerminals[0]->node()});
    }
    addMNASubComponent(mSubCapacitor,
                       MNA_SUBCOMP_TASK_ORDER::TASK_BEFORE_PARENT,
                       MNA_SUBCOMP_TASK_ORDER::TASK_BEFORE_PARENT, true);
  }
 
  MatrixComp vInitABC = MatrixComp::Zero(3, 1);
  vInitABC(0, 0) = RMS3PH_TO_PEAK1PH * mTerminals[0]->initialSingleVoltage();
  vInitABC(1, 0) = vInitABC(0, 0) * SHIFT_TO_PHASE_B;
  vInitABC(2, 0) = vInitABC(0, 0) * SHIFT_TO_PHASE_C;
  **mIntfVoltage = vInitABC.real();
 
  if ((**mActivePower)(0, 0) != 0) {
    mResistance =
        std::pow(**mNomVoltage / sqrt(3), 2) * (**mActivePower).inverse();
  }
 
  if ((**mReactivePower)(0, 0) != 0)
    mReactance =
        std::pow(**mNomVoltage / sqrt(3), 2) * (**mReactivePower).inverse();
  else
    mReactance = Matrix::Zero(1, 1);
 
  if (mReactanceInSeries) {
    MatrixComp impedance = MatrixComp::Zero(3, 3);
    impedance << Complex(mResistance(0, 0), mReactance(0, 0)),
        Complex(mResistance(0, 1), mReactance(0, 1)),
        Complex(mResistance(0, 2), mReactance(0, 2)),
        Complex(mResistance(1, 0), mReactance(1, 0)),
        Complex(mResistance(1, 1), mReactance(1, 1)),
        Complex(mResistance(1, 2), mReactance(1, 2)),
        Complex(mResistance(2, 0), mReactance(2, 0)),
        Complex(mResistance(2, 1), mReactance(2, 1)),
        Complex(mResistance(2, 2), mReactance(2, 2));
    **mIntfCurrent = (impedance.inverse() * vInitABC).real();
 
    // Initialization of virtual node
    // Initial voltage of phase B,C is set after A
    MatrixComp vInitTerm0 = MatrixComp::Zero(3, 1);
    vInitTerm0(0, 0) = initialSingleVoltage(0);
    vInitTerm0(1, 0) = vInitTerm0(0, 0) * SHIFT_TO_PHASE_B;
    vInitTerm0(2, 0) = vInitTerm0(0, 0) * SHIFT_TO_PHASE_C;
    mVirtualNodes[0]->setInitialVoltage(vInitTerm0 +
                                        mResistance * **mIntfCurrent);
  }
 
  if ((**mActivePower)(0, 0) != 0) {
    mSubResistor->initializeFromNodesAndTerminals(frequency);
    if (!mReactanceInSeries) {
      **mIntfCurrent += mSubResistor->intfCurrent();
    }
  }
 
  if (mReactance(0, 0) > 0) {
    mSubInductor->initializeFromNodesAndTerminals(frequency);
    if (!mReactanceInSeries) {
      **mIntfCurrent += mSubInductor->intfCurrent();
    }
  } else if (mReactance(0, 0) < 0) {
    mSubCapacitor->initializeFromNodesAndTerminals(frequency);
    if (!mReactanceInSeries) {
      **mIntfCurrent += mSubCapacitor->intfCurrent();
    }
  }
 
  SPDLOG_LOGGER_INFO(
      mSLog,
      "\n--- Initialization from powerflow ---"
      "\nVoltage across: {:s}"
      "\nCurrent: {:s}"
      "\nTerminal 0 voltage: {:s}"
      "\nActive Power: {:s}"
      "\nReactive Power: {:s}"
      "\nResistance: {:s}"
      "\nReactance: {:s}"
      "\n--- Initialization from powerflow finished ---",
      Logger::matrixToString(**mIntfVoltage),
      Logger::matrixToString(**mIntfCurrent),
      Logger::phasorToString(RMS3PH_TO_PEAK1PH * initialSingleVoltage(0)),
      Logger::matrixToString(**mActivePower),
      Logger::matrixToString(**mReactivePower),
      Logger::matrixToString(mResistance), Logger::matrixToString(mReactance));
  mSLog->flush();
}
 
void EMT::Ph3::RXLoad::mnaParentAddPreStepDependencies(
    AttributeBase::List &prevStepDependencies,
    AttributeBase::List &attributeDependencies,
    AttributeBase::List &modifiedAttributes) {
  modifiedAttributes.push_back(mRightVector);
};
 
void EMT::Ph3::RXLoad::mnaParentAddPostStepDependencies(
    AttributeBase::List &prevStepDependencies,
    AttributeBase::List &attributeDependencies,
    AttributeBase::List &modifiedAttributes,
    Attribute<Matrix>::Ptr &leftVector) {
  attributeDependencies.push_back(leftVector);
  modifiedAttributes.push_back(mIntfCurrent);
  modifiedAttributes.push_back(mIntfVoltage);
};
 
void EMT::Ph3::RXLoad::mnaParentPreStep(Real time, Int timeStepCount) {
  mnaCompApplyRightSideVectorStamp(**mRightVector);
}
 
void EMT::Ph3::RXLoad::mnaParentPostStep(Real time, Int timeStepCount,
                                         Attribute<Matrix>::Ptr &leftVector) {
  mnaCompUpdateVoltage(**leftVector);
  mnaCompUpdateCurrent(**leftVector);
}
 
void EMT::Ph3::RXLoad::mnaCompUpdateVoltage(const Matrix &leftVector) {
  **mIntfVoltage = Matrix::Zero(3, 1);
  (**mIntfVoltage)(0, 0) =
      Math::realFromVectorElement(leftVector, matrixNodeIndex(0, 0));
  (**mIntfVoltage)(1, 0) =
      Math::realFromVectorElement(leftVector, matrixNodeIndex(0, 1));
  (**mIntfVoltage)(2, 0) =
      Math::realFromVectorElement(leftVector, matrixNodeIndex(0, 2));
}
 
void EMT::Ph3::RXLoad::mnaCompUpdateCurrent(const Matrix &leftVector) {
  if (mReactanceInSeries) {
    **mIntfCurrent = mSubInductor->intfCurrent();
  } else {
    **mIntfCurrent = Matrix::Zero(3, 1);
    for (auto &subc : mSubComponents) {
      **mIntfCurrent += subc->intfCurrent();
    }
  }
}