com.interpss.core.algo.impl

Class ScBusCalculator

java.lang.Object

com.interpss.core.algo.impl.ScCalculatorBase

com.interpss.core.algo.impl.ScBusCalculator

public class ScBusCalculator
extends ScCalculatorBase

SC calculator implementation for bus fault Notes: 1) for 3-P fault, zeq = zlg for L-G fault, zeq = zdd0 + zdd2, i1 = i2 = i0 zdd0 = zdd0(net) + 3*Zlg zdd2 = zdd2(net) for L-L fault, zeq = Zll/2 + zdd2, i2 = -i1, i0=0 zdd2 = zdd2(net) + Zll/2 for LL-G fault, zeq = zll/2 + zdd0 || zdd2; zdd2 = zdd2(net) + Zll/2 zdd0 = zdd0(net) + Zll/2 + 3*Zlg i2 and i0 calcualted based on v1 on the fault point 2) For unsymmetric fault faults, 3-Phase L-G Fault LL-G Fault L-L Fault --+---------- --+-------- --+------------- --+--------------- --|---+------ --|--+----- --|-----+------- --|------+-------- --|---|---+-- --|--|--+-- --|-----|-----+- --|------|------+- | | | | | | | | | | | | | | | | Zll/2 Zll/2 Zll/2 Zll/2 | Zlg Zlg Zlg Zlg | | | | | | | | +--|--+ +------+ +---|---+ | Zlg | = | = =

Constructor Summary

Constructors

Constructor and Description
ScBusCalculator(BaseAcscNetwork<?,?> net) constructor

Method Summary

Modifier and Type	Method and Description
org.apache.commons.math3.complex.Complex	isc3Phase(AcscBusFault fault) Calculate 3P SC fault current.
org.apache.commons.math3.complex.Complex	iscLG(AcscBusFault fault) Calculate LG SC fault current.
org.apache.commons.math3.complex.Complex	iscLL(BaseAcscNetwork<?,?> net, AcscBusFault fault) Calculate LL SC fault current.
org.apache.commons.math3.complex.Complex	iscLLG(BaseAcscNetwork<?,?> net, AcscBusFault fault) Calculate LLG SC fault current.
org.apache.commons.math3.complex.Complex[][]	zEqBusMatrix(java.util.List<AcscBus> busList, SequenceCode sequence) Calculate equiv z matrix by looking into the system from a set of buses.
org.apache.commons.math3.complex.Complex	zEqFault(AcscBusFault fault) Calculate non-symmetric bus fault equivalent Z

Methods inherited from class com.interpss.core.algo.impl.ScCalculatorBase

getMultiFactor, getScBusVoltage, setMultiFactor, setScBusVoltage

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ScBusCalculator

public ScBusCalculator(BaseAcscNetwork<?,?> net)

constructor

Parameters:

net -

Method Detail

zEqFault

public org.apache.commons.math3.complex.Complex zEqFault(AcscBusFault fault)
                                                  throws IpssNumericException

Calculate non-symmetric bus fault equivalent Z

Parameters:

fault - Bus fault object, including full description of the fault

Returns:

the equivalent z

Throws:

IpssNumericException

isc3Phase

public org.apache.commons.math3.complex.Complex isc3Phase(AcscBusFault fault)
                                                   throws IpssNumericException

Calculate 3P SC fault current. The full network SC current and voltage are stored in the fault object

Parameters:

fault -

Returns:

SC current at the fault point

Throws:

IpssNumericException

iscLG

public org.apache.commons.math3.complex.Complex iscLG(AcscBusFault fault)
                                               throws IpssNumericException

Calculate LG SC fault current. The full network SC current and voltage are stored in the fault object

Parameters:

fault -

Returns:

SC current at the fault point

Throws:

IpssNumericException

iscLL

public org.apache.commons.math3.complex.Complex iscLL(BaseAcscNetwork<?,?> net,
                                                      AcscBusFault fault)
                                               throws IpssNumericException

Calculate LL SC fault current. The full network SC current and voltage are stored in the fault object

Parameters:

fault -

Returns:

SC current at the fault point

Throws:

IpssNumericException

iscLLG

public org.apache.commons.math3.complex.Complex iscLLG(BaseAcscNetwork<?,?> net,
                                                       AcscBusFault fault)
                                                throws IpssNumericException

Calculate LLG SC fault current. The full network SC current and voltage are stored in the fault object

Parameters:

fault -

Returns:

SC current at the fault point

Throws:

IpssNumericException

zEqBusMatrix

public org.apache.commons.math3.complex.Complex[][] zEqBusMatrix(java.util.List<AcscBus> busList,
                                                                 SequenceCode sequence)
                                                          throws IpssNumericException

Calculate equiv z matrix by looking into the system from a set of buses. Matrix row/column position is arranged by the bus position in the list

Parameters:

busList -

sequence -

Returns:

z matrix

Throws:

IpssNumericException