EMT_Ph3_Inductor.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_Inductor.h>
 
using namespace CPS;
 
EMT::Ph3::Inductor::Inductor(String uid, String name, Logger::Level logLevel)
    : MNASimPowerComp<Real>(uid, name, true, true, logLevel),
      Base::Ph3::Inductor(mAttributes) {
  mPhaseType = PhaseType::ABC;
  setTerminalNumber(2);
  mEquivCurrent = Matrix::Zero(3, 1);
  **mIntfVoltage = Matrix::Zero(3, 1);
  **mIntfCurrent = Matrix::Zero(3, 1);
}
 
SimPowerComp<Real>::Ptr EMT::Ph3::Inductor::clone(String name) {
  auto copy = Inductor::make(name, mLogLevel);
  copy->setParameters(**mInductance);
  return copy;
}
 
void EMT::Ph3::Inductor::initializeFromNodesAndTerminals(Real frequency) {
 
  Real omega = 2 * PI * frequency;
  MatrixComp impedance = MatrixComp::Zero(3, 3);
  impedance << Complex(0, omega * (**mInductance)(0, 0)),
      Complex(0, omega * (**mInductance)(0, 1)),
      Complex(0, omega * (**mInductance)(0, 2)),
      Complex(0, omega * (**mInductance)(1, 0)),
      Complex(0, omega * (**mInductance)(1, 1)),
      Complex(0, omega * (**mInductance)(1, 2)),
      Complex(0, omega * (**mInductance)(2, 0)),
      Complex(0, omega * (**mInductance)(2, 1)),
      Complex(0, omega * (**mInductance)(2, 2));
 
  MatrixComp vInitABC = Matrix::Zero(3, 1);
  vInitABC(0, 0) = RMS3PH_TO_PEAK1PH * initialSingleVoltage(1) -
                   RMS3PH_TO_PEAK1PH * initialSingleVoltage(0);
  vInitABC(1, 0) = vInitABC(0, 0) * SHIFT_TO_PHASE_B;
  vInitABC(2, 0) = vInitABC(0, 0) * SHIFT_TO_PHASE_C;
  **mIntfVoltage = vInitABC.real();
  MatrixComp admittance = impedance.inverse();
  **mIntfCurrent = (admittance * vInitABC).real();
 
  SPDLOG_LOGGER_INFO(mSLog,
                     "\nInductance [H]: {:s}"
                     "\nImpedance [Ohm]: {:s}",
                     Logger::matrixToString(**mInductance),
                     Logger::matrixCompToString(impedance));
  SPDLOG_LOGGER_INFO(
      mSLog,
      "\n--- Initialization from powerflow ---"
      "\nVoltage across: {:s}"
      "\nCurrent: {:s}"
      "\nTerminal 0 voltage: {:s}"
      "\nTerminal 1 voltage: {:s}"
      "\n--- Initialization from powerflow finished ---",
      Logger::matrixToString(**mIntfVoltage),
      Logger::matrixToString(**mIntfCurrent),
      Logger::phasorToString(RMS3PH_TO_PEAK1PH * initialSingleVoltage(0)),
      Logger::phasorToString(RMS3PH_TO_PEAK1PH * initialSingleVoltage(1)));
}
 
void EMT::Ph3::Inductor::mnaCompInitialize(Real omega, Real timeStep,
                                           Attribute<Matrix>::Ptr leftVector) {
 
  updateMatrixNodeIndices();
  mEquivCond = timeStep / 2. * (**mInductance).inverse();
  // Update internal state
  mEquivCurrent = mEquivCond * **mIntfVoltage + **mIntfCurrent;
 
  SPDLOG_LOGGER_INFO(mSLog,
                     "\n--- MNA initialization ---"
                     "\nInitial voltage {:s}"
                     "\nInitial current {:s}"
                     "\nEquiv. current {:s}"
                     "\n--- MNA initialization finished ---",
                     Logger::matrixToString(**mIntfVoltage),
                     Logger::matrixToString(**mIntfCurrent),
                     Logger::matrixToString(mEquivCurrent));
  mSLog->flush();
}
 
void EMT::Ph3::Inductor::mnaCompApplySystemMatrixStamp(
    SparseMatrixRow &systemMatrix) {
  MNAStampUtils::stampConductanceMatrix(
      mEquivCond, systemMatrix, matrixNodeIndex(0), matrixNodeIndex(1),
      terminalNotGrounded(0), terminalNotGrounded(1), mSLog);
 
  SPDLOG_LOGGER_INFO(mSLog, "\nEquivalent Conductance: {:s}",
                     Logger::matrixToString(mEquivCond));
}
 
void EMT::Ph3::Inductor::mnaCompApplyRightSideVectorStamp(Matrix &rightVector) {
  // Update internal state
  mEquivCurrent = mEquivCond * **mIntfVoltage + **mIntfCurrent;
  if (terminalNotGrounded(0)) {
    Math::setVectorElement(rightVector, matrixNodeIndex(0, 0),
                           mEquivCurrent(0, 0));
    Math::setVectorElement(rightVector, matrixNodeIndex(0, 1),
                           mEquivCurrent(1, 0));
    Math::setVectorElement(rightVector, matrixNodeIndex(0, 2),
                           mEquivCurrent(2, 0));
  }
  if (terminalNotGrounded(1)) {
    Math::setVectorElement(rightVector, matrixNodeIndex(1, 0),
                           -mEquivCurrent(0, 0));
    Math::setVectorElement(rightVector, matrixNodeIndex(1, 1),
                           -mEquivCurrent(1, 0));
    Math::setVectorElement(rightVector, matrixNodeIndex(1, 2),
                           -mEquivCurrent(2, 0));
  }
  SPDLOG_LOGGER_DEBUG(
      mSLog, "\nEquivalent Current (mnaCompApplyRightSideVectorStamp): {:s}",
      Logger::matrixToString(mEquivCurrent));
  mSLog->flush();
}
 
void EMT::Ph3::Inductor::mnaCompAddPreStepDependencies(
    AttributeBase::List &prevStepDependencies,
    AttributeBase::List &attributeDependencies,
    AttributeBase::List &modifiedAttributes) {
  // actually depends on L, but then we'd have to modify the system matrix anyway
  prevStepDependencies.push_back(mIntfVoltage);
  prevStepDependencies.push_back(mIntfCurrent);
  modifiedAttributes.push_back(mRightVector);
}
 
void EMT::Ph3::Inductor::mnaCompPreStep(Real time, Int timeStepCount) {
  mnaCompApplyRightSideVectorStamp(**mRightVector);
}
 
void EMT::Ph3::Inductor::mnaCompAddPostStepDependencies(
    AttributeBase::List &prevStepDependencies,
    AttributeBase::List &attributeDependencies,
    AttributeBase::List &modifiedAttributes,
    Attribute<Matrix>::Ptr &leftVector) {
  attributeDependencies.push_back(leftVector);
  modifiedAttributes.push_back(mIntfVoltage);
  modifiedAttributes.push_back(mIntfCurrent);
}
 
void EMT::Ph3::Inductor::mnaCompPostStep(Real time, Int timeStepCount,
                                         Attribute<Matrix>::Ptr &leftVector) {
  mnaCompUpdateVoltage(**leftVector);
  mnaCompUpdateCurrent(**leftVector);
}
 
void EMT::Ph3::Inductor::mnaCompUpdateVoltage(const Matrix &leftVector) {
  // v1 - v0
  **mIntfVoltage = Matrix::Zero(3, 1);
  if (terminalNotGrounded(1)) {
    (**mIntfVoltage)(0, 0) =
        Math::realFromVectorElement(leftVector, matrixNodeIndex(1, 0));
    (**mIntfVoltage)(1, 0) =
        Math::realFromVectorElement(leftVector, matrixNodeIndex(1, 1));
    (**mIntfVoltage)(2, 0) =
        Math::realFromVectorElement(leftVector, matrixNodeIndex(1, 2));
  }
  if (terminalNotGrounded(0)) {
    (**mIntfVoltage)(0, 0) =
        (**mIntfVoltage)(0, 0) -
        Math::realFromVectorElement(leftVector, matrixNodeIndex(0, 0));
    (**mIntfVoltage)(1, 0) =
        (**mIntfVoltage)(1, 0) -
        Math::realFromVectorElement(leftVector, matrixNodeIndex(0, 1));
    (**mIntfVoltage)(2, 0) =
        (**mIntfVoltage)(2, 0) -
        Math::realFromVectorElement(leftVector, matrixNodeIndex(0, 2));
  }
  SPDLOG_LOGGER_DEBUG(mSLog, "\nUpdate Voltage: {:s}",
                      Logger::matrixToString(**mIntfVoltage));
}
 
void EMT::Ph3::Inductor::mnaCompUpdateCurrent(const Matrix &leftVector) {
  **mIntfCurrent = mEquivCond * **mIntfVoltage + mEquivCurrent;
  SPDLOG_LOGGER_DEBUG(mSLog, "\nUpdate Current: {:s}",
                      Logger::matrixToString(**mIntfCurrent));
  mSLog->flush();
}
 
// #### Tear Methods ####
void EMT::Ph3::Inductor::mnaTearInitialize(Real omega, Real timeStep) {
  //initVars(omega, timeStep);
  updateMatrixNodeIndices();
  mEquivCond = timeStep / 2. * (**mInductance).inverse();
  // Update internal state
  mEquivCurrent = mEquivCond * **mIntfVoltage + **mIntfCurrent;
}
 
void EMT::Ph3::Inductor::mnaTearApplyMatrixStamp(SparseMatrixRow &tearMatrix) {
  // Set diagonal entries
  Math::addToMatrixElement(tearMatrix, mTearIdx * 3, mTearIdx * 3,
                           1. / mEquivCond(0, 0)); // 1 /
  Math::addToMatrixElement(tearMatrix, mTearIdx * 3 + 1, mTearIdx * 3 + 1,
                           1. / mEquivCond(1, 1));
  Math::addToMatrixElement(tearMatrix, mTearIdx * 3 + 2, mTearIdx * 3 + 2,
                           1. / mEquivCond(2, 2));
}
 
void EMT::Ph3::Inductor::mnaTearApplyVoltageStamp(Matrix &voltageVector) {
  mEquivCurrent = mEquivCond * **mIntfVoltage + **mIntfCurrent;
  Math::addToVectorElement(voltageVector, mTearIdx * 3,
                           mEquivCurrent(0, 0) / mEquivCond(0, 0));
  Math::addToVectorElement(voltageVector, mTearIdx * 3 + 1,
                           mEquivCurrent(1, 0) / mEquivCond(1, 1));
  Math::addToVectorElement(voltageVector, mTearIdx * 3 + 2,
                           mEquivCurrent(2, 0) / mEquivCond(2, 2));
}
 
void EMT::Ph3::Inductor::mnaTearPostStep(MatrixComp voltage,
                                         MatrixComp current) {
  (**mIntfVoltage) = voltage.real();
  (**mIntfCurrent) = (mEquivCond * voltage).real() + mEquivCurrent;
}