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There are three types of multiphase Voltage source components.

Single Phase Voltage Source

The single phase voltage source is an ideal voltage source behind an internal series impedance. The parameter values for V, Rs, and Xs are in SI unit.

Symbol

Description

Unit

IDSource namea unique name

Bus1

Bus name (Bus ID)

a unique name

Voltage (V)

Nominal voltage magnitude

V

Angle (deg)

Voltage angle

Degree

Rs (Ohm)

Series resistance

Ohm

Xs (Ohm)

Series reactance

Ohm

Available I/O pins for Single Phase Voltage Source

No

Pin Description

Pin Type

Value/Unit

Instruction

1

Set/Get internal voltage magnitude of Vsource

I/O

V (RMS)

VsourceID/Vmag

2

Set/Get internal voltage angle of Vsource

I/O

Degree

VsourceID/Vang

3

Set/Get internal resistance and reac­tance of Vsource

I/O

Ohm

VsourceID/resistance

VsourceID/reactance

4Get injected current magnitudeOA (RMS)VsourceID/Imag
5

Get injected current angle

O

DegreeVsourceID/Iang

Three Phase Voltage Source with Short-Circuit Level Data

The three phase voltage source model is based on three ideal voltage sources, with 120 degrees of phase shift, behind an internal impedance.

Symbol

Description

Unit

IDSource namea unique name

Bus1

Name of phase A of the connected bus

a unique name

Bus2

Name of phase B of the connected bus

Bus3

Name of phase C of the connected bus

kV (ph-ph RMS)

Nominal voltage (phase-to-phase)

kV

Angle_a (deg)

Initial value for angle of phase A

degree

SCL1ph (MVA)

Single phase short circuit level

NOT APPLICABLE

SCL3ph (MVA)

Three phase short circuit level

NOT APPLICABLE

Three Phase Voltage Source with Sequential Data

Symbol

Description

Unit

IDSource namea unique name

Bus1

Name of phase A of the connected bus

a unique name

Bus2

Name of phase B of the connected bus

Bus3

Name of phase C of the connected bus

kV (ph-ph RMS)

Nominal voltage (phase-to-phase)

kV

Angle_a (deg)

Initial value for angle of phase A

degree

R1 (Ohm)

Positive-sequence resistance

voltage source ohm

X1 (Ohm)

Positive-sequence reactance

R0 (Ohm)

zero-sequence resistance

X0 (Ohm)

zero-sequence reactance

Available I/O pins for Three Phase Voltage Source

No

Pin Description

Pin Type

Value/Unit

Instruction

1

Get current magnitude of each phase

O

A (RMS)

VsourceID/Imag_a

VsourceID/Imag_b

VsourceID/Imag_c

2Get current angle of each phaseODegree

VsourceID/Iang_a

VsourceID/Iang_b

VsourceID/Iang_c

3Set/Get nominal voltage (phase-to-phase)I/OkVVsourceID/kVll
4Set/Get initial value for angle of phase AI/ODegreeVsourceID/angle_a

Example

See the Voltage Source page in phasor08_IEEE13.xls file in demo PHASOR-08.

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