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#include "ElectricCalculation.h"
ElectricCalculation::ElectricCalculation() {}
ElectricCalculation::~ElectricCalculation() {}
void ElectricCalculation::GetElementsFromList(std::vector<Element*> elementList)
{
m_busList.clear();
m_capacitorList.clear();
m_indMotorList.clear();
m_inductorList.clear();
m_lineList.clear();
m_loadList.clear();
m_syncGeneratorList.clear();
m_syncMotorList.clear();
m_transformerList.clear();
// Bad design?
for(auto it = elementList.begin(); it != elementList.end(); it++) {
Element* element = *it;
if(typeid(*element) == typeid(Bus))
m_busList.push_back((Bus*)element);
else if(typeid(*element) == typeid(Capacitor))
m_capacitorList.push_back((Capacitor*)element);
else if(typeid(*element) == typeid(IndMotor))
m_indMotorList.push_back((IndMotor*)element);
else if(typeid(*element) == typeid(Inductor))
m_inductorList.push_back((Inductor*)element);
else if(typeid(*element) == typeid(Line))
m_lineList.push_back((Line*)element);
else if(typeid(*element) == typeid(Load))
m_loadList.push_back((Load*)element);
else if(typeid(*element) == typeid(SyncGenerator))
m_syncGeneratorList.push_back((SyncGenerator*)element);
else if(typeid(*element) == typeid(SyncMotor))
m_syncMotorList.push_back((SyncMotor*)element);
else if(typeid(*element) == typeid(Transformer))
m_transformerList.push_back((Transformer*)element);
}
}
bool ElectricCalculation::GetYBus(std::vector<std::vector<std::complex<double> > >& yBus, double systemPowerBase)
{
if(m_busList.size() == 0) return false;
// Clear and fill with zeros the Ybus
yBus.clear();
for(int i = 0; i < (int)m_busList.size(); i++) {
std::vector<std::complex<double> > line;
for(int j = 0; j < (int)m_busList.size(); j++) {
line.push_back(std::complex<double>(0.0, 0.0));
}
yBus.push_back(line);
}
// Build connection map
std::vector<std::vector<int> > lineMap;
std::vector<std::vector<int> > transfomerMap;
lineMap.resize(m_lineList.size());
transfomerMap.resize(m_transformerList.size());
// Get the connection map for
int busNumber = 0;
for(auto itb = m_busList.begin(); itb != m_busList.end(); itb++) {
Bus* bus = *itb;
// Get power line connection map
for(int i = 0; i < (int)m_lineList.size(); i++) {
for(int j = 0; j < (int)m_lineList[i]->GetParentList().size(); j++) {
if(bus == m_lineList[i]->GetParentList()[j]) lineMap[i].push_back(busNumber);
}
}
// Get transformer connection map
for(int i = 0; i < (int)m_transformerList.size(); i++) {
for(int j = 0; j < (int)m_transformerList[i]->GetParentList().size(); j++) {
if(bus == m_transformerList[i]->GetParentList()[j]) transfomerMap[i].push_back(busNumber);
}
}
// Load
for(auto itlo = m_loadList.begin(); itlo != m_loadList.end(); itlo++) {
Load* load = *itlo;
if(bus == load->GetParentList()[0] && load->IsOnline()) {
LoadElectricalData data = load->GetPUElectricalData(systemPowerBase);
if(data.loadType == CONST_IMPEDANCE)
yBus[busNumber][busNumber] += std::complex<double>(data.activePower, -data.reactivePower);
}
}
// Capacitor
for(auto itca = m_capacitorList.begin(); itca != m_capacitorList.end(); itca++) {
Capacitor* capacitor = *itca;
if(bus == capacitor->GetParentList()[0] && capacitor->IsOnline()) {
CapacitorElectricalData data = capacitor->GetPUElectricalData(systemPowerBase);
yBus[busNumber][busNumber] += std::complex<double>(0.0, data.reactivePower);
}
}
// Inductor
for(auto itin = m_inductorList.begin(); itin != m_inductorList.end(); itin++) {
Inductor* inductor = *itin;
if(bus == inductor->GetParentList()[0] && inductor->IsOnline()) {
InductorElectricalData data = inductor->GetPUElectricalData(systemPowerBase);
yBus[busNumber][busNumber] += std::complex<double>(0.0, -data.reactivePower);
}
}
busNumber++;
}
// Power line
int lineNumber = 0;
for(auto itl = m_lineList.begin(); itl != m_lineList.end(); itl++) {
Line* line = *itl;
LineElectricalData data = line->GetElectricalData();
if(line->IsOnline()) {
yBus[lineMap[lineNumber][0]][lineMap[lineNumber][1]] -=
1.0 / std::complex<double>(data.resistance, data.indReactance);
yBus[lineMap[lineNumber][1]][lineMap[lineNumber][0]] -=
1.0 / std::complex<double>(data.resistance, data.indReactance);
yBus[lineMap[lineNumber][0]][lineMap[lineNumber][0]] +=
1.0 / std::complex<double>(data.resistance, data.indReactance);
yBus[lineMap[lineNumber][1]][lineMap[lineNumber][1]] +=
1.0 / std::complex<double>(data.resistance, data.indReactance);
yBus[lineMap[lineNumber][0]][lineMap[lineNumber][0]] +=
std::complex<double>(0.0, data.capSusceptance / 2.0);
yBus[lineMap[lineNumber][1]][lineMap[lineNumber][1]] +=
std::complex<double>(0.0, data.capSusceptance / 2.0);
}
lineNumber++;
}
int transformerNumber = 0;
for(auto itt = m_transformerList.begin(); itt != m_transformerList.end(); ++itt) {
Transformer* transformer = *itt;
TransformerElectricalData data = transformer->GetElectricalData();
if(transformer->IsOnline()) {
// If the transformer have nominal turns ratio (1.0) and no phase shifting, it will be modelled as series
// impedance.
if(data.turnsRatio == 1.0 && data.phaseShift == 0.0) {
yBus[transfomerMap[transformerNumber][0]][transfomerMap[transformerNumber][1]] +=
-1.0 / std::complex<double>(data.resistance, data.indReactance);
yBus[transfomerMap[transformerNumber][1]][transfomerMap[transformerNumber][0]] +=
-1.0 / std::complex<double>(data.resistance, data.indReactance);
yBus[transfomerMap[transformerNumber][0]][transfomerMap[transformerNumber][0]] +=
1.0 / std::complex<double>(data.resistance, data.indReactance);
yBus[transfomerMap[transformerNumber][1]][transfomerMap[transformerNumber][1]] +=
1.0 / std::complex<double>(data.resistance, data.indReactance);
}
// If the transformer have no-nominal turn ratio and/or phase shifting, it will be modelled in a different
// way (see references).
//[Ref. 1: Elementos de analise de sistemas de potencia - Stevenson - pg. 232]
//[Ref. 2: http://www.ee.washington.edu/research/real/Library/Reports/Tap_Adjustments_in_AC_Load_Flows.pdf]
//[Ref. 3: http://www.columbia.edu/~dano/courses/power/notes/power/andersson1.pdf]
else {
// Complex turns ratio
double radPhaseShift = wxDegToRad(data.phaseShift);
std::complex<double> a = std::complex<double>(data.turnsRatio * std::cos(radPhaseShift),
-data.turnsRatio * std::sin(radPhaseShift));
// Transformer admitance
std::complex<double> y = 1.0 / std::complex<double>(data.resistance, data.indReactance);
yBus[transfomerMap[transformerNumber][0]][transfomerMap[transformerNumber][0]] +=
y / std::pow(std::abs(a), 2.0);
yBus[transfomerMap[transformerNumber][0]][transfomerMap[transformerNumber][1]] += -(y / std::conj(a));
yBus[transfomerMap[transformerNumber][1]][transfomerMap[transformerNumber][0]] += -(y / a);
yBus[transfomerMap[transformerNumber][1]][transfomerMap[transformerNumber][1]] += y;
}
}
transformerNumber++;
}
return true;
}
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