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-rw-r--r--Project/PowerFlow.cpp254
1 files changed, 236 insertions, 18 deletions
diff --git a/Project/PowerFlow.cpp b/Project/PowerFlow.cpp
index 22aa027..69bfd66 100644
--- a/Project/PowerFlow.cpp
+++ b/Project/PowerFlow.cpp
@@ -1,27 +1,245 @@
#include "PowerFlow.h"
-PowerFlow::PowerFlow(std::vector<Element*> elementList) : ElectricCalculation()
+PowerFlow::PowerFlow(std::vector<Element*> elementList) : ElectricCalculation() { GetElementsFromList(elementList); }
+PowerFlow::~PowerFlow() {}
+bool PowerFlow::RunGaussSeidel(double systemPowerBase,
+ int maxIteration,
+ double error,
+ double initAngle,
+ double accFactor)
{
- GetElementsFromList(elementList);
-}
+ // Calculate the Ybus.
+ if(!GetYBus(m_yBus, systemPowerBase)) {
+ m_errorMsg = _("No buses found on the system.");
+ return false;
+ }
-PowerFlow::~PowerFlow()
-{
-}
+ // Number of buses on the system.
+ int numberOfBuses = (int)m_busList.size();
+
+ std::vector<BusType> busType; // Bus type
+ std::vector<std::complex<double> > voltage; // Voltage of buses
+ std::vector<std::complex<double> > power; // Injected power
+
+ int busNumber = 0;
+ for(auto itb = m_busList.begin(); itb != m_busList.end(); itb++) {
+ Bus* bus = *itb;
+ BusElectricalData data = bus->GetEletricalData();
+
+ // Fill the bus type
+ if(data.slackBus) busType.push_back(BUS_SLACK);
+ // If the bus have controlled voltage, check if at least one synchronous machine is connected, then set the
+ // bus type.
+ else if(data.isVoltageControlled)
+ {
+ bool hasSyncMachine = false;
+ // Synchronous generator
+ for(auto itsg = m_syncGeneratorList.begin(); itsg != m_syncGeneratorList.end(); itsg++) {
+ SyncGenerator* syncGenerator = *itsg;
+ if(bus == syncGenerator->GetParentList()[0] && syncGenerator->IsOnline())
+ hasSyncMachine = true;
+ }
+ // Synchronous motor
+ for(auto itsm = m_syncMotorList.begin(); itsm != m_syncMotorList.end(); itsm++) {
+ SyncMotor* syncMotor = *itsm;
+ if(bus == syncMotor->GetParentList()[0] && syncMotor->IsOnline()) hasSyncMachine = true;
+ }
+ if(hasSyncMachine)
+ busType.push_back(BUS_PV);
+ else
+ busType.push_back(BUS_PQ);
+ }
+ else
+ busType.push_back(BUS_PQ);
+
+ // Fill the voltages array
+ if(data.isVoltageControlled && busType[busNumber] != BUS_PQ) {
+ voltage.push_back(std::complex<double>(data.controlledVoltage, 0.0));
+ }
+ else
+ {
+ voltage.push_back(std::complex<double>(1.0, 0.0));
+ }
+
+ // Fill the power array
+ power.push_back(std::complex<double>(0.0, 0.0)); // Initial value
+
+ // Synchronous generator
+ for(auto itsg = m_syncGeneratorList.begin(); itsg != m_syncGeneratorList.end(); itsg++) {
+ SyncGenerator* syncGenerator = *itsg;
+ if(syncGenerator->IsOnline()) {
+ if(bus == syncGenerator->GetParentList()[0]) {
+ SyncGeneratorElectricalData childData =
+ syncGenerator->GetPUElectricalData(systemPowerBase);
+ power[busNumber] +=
+ std::complex<double>(childData.activePower, childData.reactivePower);
+ }
+ }
+ }
+ // Synchronous motor
+ for(auto itsm = m_syncMotorList.begin(); itsm != m_syncMotorList.end(); itsm++) {
+ SyncMotor* syncMotor = *itsm;
+ if(syncMotor->IsOnline()) {
+ if(bus == syncMotor->GetParentList()[0]) {
+ SyncMotorElectricalData childData = syncMotor->GetPUElectricalData(systemPowerBase);
+ power[busNumber] +=
+ std::complex<double>(-childData.activePower, childData.reactivePower);
+ }
+ }
+ }
+ // Load
+ for(auto itl = m_loadList.begin(); itl != m_loadList.end(); itl++) {
+ Load* load = *itl;
+ if(load->IsOnline()) {
+ if(bus == load->GetParentList()[0]) {
+ LoadElectricalData childData = load->GetPUElectricalData(systemPowerBase);
+ if(childData.loadType == CONST_POWER)
+ power[busNumber] +=
+ std::complex<double>(-childData.activePower, -childData.reactivePower);
+ }
+ }
+ }
+
+ // Induction motor
+ for(auto itim = m_indMotorList.begin(); itim != m_indMotorList.end(); itim++) {
+ IndMotor* indMotor = *itim;
+ if(indMotor->IsOnline()) {
+ if(bus == indMotor->GetParentList()[0]) {
+ IndMotorElectricalData childData = indMotor->GetPUElectricalData(systemPowerBase);
+ power[busNumber] +=
+ std::complex<double>(-childData.activePower, -childData.reactivePower);
+ }
+ }
+ }
+
+ busNumber++;
+ }
+
+ // Check if have slack bus and if have generation on the slack bus
+ bool haveSlackBus = false;
+ bool slackBusHaveGeneration = false;
+ for(int i = 0; i < (int)busType.size(); i++) {
+ if(busType[i] == BUS_SLACK) {
+ auto itb = m_busList.begin();
+ std::advance(itb, i);
+ Bus* bus = *itb;
+
+ for(auto itsg = m_syncGeneratorList.begin(); itsg != m_syncGeneratorList.end(); itsg++) {
+ SyncGenerator* syncGenerator = *itsg;
+ if(syncGenerator->IsOnline() && bus == syncGenerator->GetParentList()[0])
+ slackBusHaveGeneration = true;
+ }
+ haveSlackBus = true;
+ }
+ if(!haveSlackBus) {
+ m_errorMsg = _("There is no slack bus on the system.");
+ return false;
+ }
+ if(!slackBusHaveGeneration) {
+ m_errorMsg = _("The slack bus don't have generation.");
+ return false;
+ }
+ }
+
+ // Gauss-Seidel method
+ std::vector<std::complex<double> > oldVoltage; // Old voltage array.
+ oldVoltage.resize(voltage.size());
+
+ int iteration = 0; // Current itaration number.
+
+ while(true) {
+ // Reach the max number of iterations.
+ if(iteration >= maxIteration) {
+ m_errorMsg = _("The maximum number of iterations was reached.");
+ return false;
+ }
+
+ // Update the old voltage array to current iteration values.
+ for(int i = 0; i < numberOfBuses; i++) oldVoltage[i] = voltage[i];
+
+ double iterationError = 0.0;
+
+ for(int i = 0; i < numberOfBuses; i++) {
+ if(busType[i] == BUS_PQ) {
+ std::complex<double> yeSum(0.0, 0.0);
+ for(int k = 0; k < numberOfBuses; k++) {
+ if(i != k) {
+ // Sum { Y[i,k] * E[k] } | k = 1->n; k diff i
+ yeSum += m_yBus[i][k] * voltage[k];
+ }
+ }
+
+ // E[i] = (1/Y[i,i])*((P[i]-jQ[i])/E*[i] - Sum { Y[i,k] * E[k] (k diff i) })
+ std::complex<double> newVolt =
+ (1.0 / m_yBus[i][i]) * (std::conj(power[i]) / std::conj(voltage[i]) - yeSum);
+
+ // Apply the acceleration factor.
+ newVolt = std::complex<double>(
+ accFactor * (newVolt.real() - voltage[i].real()) + voltage[i].real(),
+ accFactor * (newVolt.imag() - voltage[i].imag()) + voltage[i].imag());
+
+ voltage[i] = newVolt;
+ }
+ if(busType[i] == BUS_PV) {
+ std::complex<double> yeSum(0.0, 0.0);
+ for(int k = 0; k < numberOfBuses; k++) {
+ if(i != k) {
+ // Sum { Y[i,k] * E[k] } | k = 1->n; k diff i
+ yeSum += m_yBus[i][k] * voltage[k];
+ }
+ }
+ std::complex<double> yeSumT = yeSum + (m_yBus[i][i] * voltage[i]);
+
+ // Q[i] = - Im( E*[i] * Sum { Y[i,k] * E[k] } )
+ std::complex<double> qCalc = std::conj(voltage[i]) * yeSumT;
+ power[i] = std::complex<double>(power[i].real(), -qCalc.imag());
+
+ // E[i] = (1/Y[i,i])*((P[i]-jQ[i])/E*[i] - Sum { Y[i,k] * E[k] (k diff i) })
+ std::complex<double> newVolt =
+ (1.0 / m_yBus[i][i]) * (std::conj(power[i]) / std::conj(voltage[i]) - yeSum);
+
+ // Apply the acceleration factor.
+ newVolt = std::complex<double>(
+ accFactor * (newVolt.real() - voltage[i].real()) + voltage[i].real(),
+ accFactor * (newVolt.imag() - voltage[i].imag()) + voltage[i].imag());
+
+ // Keep the same voltage magnitude.
+ voltage[i] = std::complex<double>(std::abs(voltage[i]) * std::cos(std::arg(newVolt)),
+ std::abs(voltage[i]) * std::sin(std::arg(newVolt)));
+ }
+
+ double busError = std::max(std::abs(voltage[i].real() - oldVoltage[i].real()),
+ std::abs(voltage[i].imag() - oldVoltage[i].imag()));
+
+ if(busError > iterationError) iterationError = busError;
+ }
+
+ if(iterationError < error) break;
+
+ iteration++;
+ }
+
+ // Adjust the power array.
+ // TODO: Only the slack bus??
+ for(int i = 0; i < numberOfBuses; i++) {
+ std::complex<double> sBus = std::complex<double>(0.0, 0.0);
+ for(int j = 0; j < numberOfBuses; j++) sBus += voltage[i] * std::conj(voltage[j]) * std::conj(m_yBus[i][j]);
+ power[i] = sBus;
+ }
-bool PowerFlow::RunGaussSeidel()
-{
- GetYBus(m_yBus, 100e6);
-
wxString str = "";
- for(int i=0; i<(int)m_yBus.size(); i++) {
- for(int j=0; j<(int)m_yBus[i].size(); j++) {
- str += wxString::Format("%.2f + j%.2f\t", m_yBus[i][j].real(), m_yBus[i][j].imag());
- }
- str += "\n";
- }
-
+ for(int i = 0; i < numberOfBuses; i++) {
+ str += wxString::Format("%.5f/_%.2f\n", std::abs(voltage[i]), wxRadToDeg(std::arg(voltage[i])));
+ }
wxLogMessage(str);
-
+
+ str = "";
+ for(int i = 0; i < numberOfBuses; i++) {
+ str += wxString::Format("%.5f + j%.5f\n", power[i].real(), power[i].imag());
+ }
+ wxLogMessage(str);
+
+ wxLogMessage(wxString::Format("Num iteracoes = %d", iteration));
+
return true;
}
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