Controlled Voltage Source (Three-Phase)

Ideal three-phase controlled voltage source

Libraries:
Simscape / Electrical / Sources

Description

The Controlled Voltage Source (Three-Phase) block represents an ideal three-phase voltage source that maintains the specified voltage regardless of the current through it.

To choose the input type of this block, set the Input type parameter to Instantaneous or Sinusoidal magnitude and phase shift. If you select Instantaneous, this block works only in time simulation mode. If you select Sinusoidal magnitude and phase shift, this block works in both time and frequency-time simulation modes. For more information, see Frequency and Time Simulation Mode.

To access the implementation with an expanded, three-phase port, double-click the block and set the Modeling option parameter to Expanded three-phase ports.

Ports

Input

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S — Control
physical signal | vector

Physical signal input port associated with the control signal. The output voltages are [v_a v_b v_c] = S. For an ideal sinusoidal source, input three sine waves that have the requisite amplitude and phase delays of $[\begin{matrix} 0 & - \frac{2 π}{3} & \frac{2 π}{3} \end{matrix}]$ .

Dependencies

To enable this port, set Input type to Instantaneous.

Vt — Phase-to-phase RMS voltage
physical signal

Physical signal input port associated with the phase-to-phase RMS voltage.

Dependencies

To enable this port, set Input type to Sinusoidal magnitude and phase shift.

ph — Phase shift
physical signal

Physical signal input port associated with the phase shift, in radians.

Dependencies

To enable this port, set Input type to Sinusoidal magnitude and phase shift.

Conserving

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n — Neutral
electrical

Electrical conserving port associated with the neutral phase.

~ — Three-phase voltage
electrical

Expandable three-phase port associated with the output voltage.

Dependencies

To enable this port, set Modeling option to Composite three-phase ports.

a — a-phase voltage
electrical

Electrical conserving port associated with the a-phase output voltage.

Dependencies

To enable this port, set Modeling option to Expanded three-phase ports.

b — b-phase voltage
electrical

Electrical conserving port associated with the b-phase output voltage.

Dependencies

To enable this port, set Modeling option to Expanded three-phase ports.

c — c-phase voltage
electrical

Electrical conserving port associated with the c-phase output voltage.

Dependencies

To enable this port, set Modeling option to Expanded three-phase ports.

Parameters

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Modeling option — Whether to model composite or expanded three-phase ports
`Composite three-phase ports` (default) | `Expanded three-phase ports`

Whether to model composite or expanded three-phase ports.

Composite three-phase ports represent three individual electrical conserving ports with a single block port. You can use composite three-phase ports to build models that correspond to single-line diagrams of three-phase electrical systems.

Expanded three-phase ports represent the individual phases of a three-phase system using three separate electrical conserving ports.

Input type — Type of input
`Instantaneous` (default) | `Sinusoidal magnitude and phase shift`

Type of physical signal input. Choose between:

Instantaneous — The output voltages, [v_a v_b v_c], are equal to the values of the input port S.
Sinusoidal magnitude and phase shift — The output voltages are equal to:

$\begin{array}{l} v_{a} = (\sqrt{2} \frac{V t}{\sqrt{3}}) \sin (2 π F_{r a t e d} + p h) \\ v_{b} = (\sqrt{2} \frac{V t}{\sqrt{3}}) \sin (2 π F_{r a t e d} + p h - 2 \frac{π}{3}) \\ v_{c} = (\sqrt{2} \frac{V t}{\sqrt{3}}) \sin (2 π F_{r a t e d} + p h + 2 \frac{π}{3}) \end{array}$

Rated electrical frequency — Rated electrical frequency
`60` `Hz` | scalar

Rated electrical frequency. The value of this parameter must be equal to the value of the rated electrical frequencies of other sinusoidal sources in your model, if present.

Dependencies

To enable this parameter, set Input type to Sinusoidal magnitude and phase shift.

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

Version History

Introduced in R2019a

Controlled Voltage Source (Three-Phase)

Description

Ports

Input

S — Control physical signal | vector

Dependencies

Vt — Phase-to-phase RMS voltage physical signal

Dependencies

ph — Phase shift physical signal

Dependencies

Conserving

n — Neutral electrical

~ — Three-phase voltage electrical

Dependencies

a — a-phase voltage electrical

Dependencies

b — b-phase voltage electrical

Dependencies

c — c-phase voltage electrical

Dependencies

Parameters

Modeling option — Whether to model composite or expanded three-phase ports Composite three-phase ports (default) | Expanded three-phase ports

Input type — Type of input Instantaneous (default) | Sinusoidal magnitude and phase shift

Rated electrical frequency — Rated electrical frequency 60 Hz | scalar

Dependencies

Extended Capabilities

C/C++ Code Generation Generate C and C++ code using Simulink® Coder™.

Version History

See Also

S — Control
physical signal | vector

Vt — Phase-to-phase RMS voltage
physical signal

ph — Phase shift
physical signal

n — Neutral
electrical

~ — Three-phase voltage
electrical

a — a-phase voltage
electrical

b — b-phase voltage
electrical

c — c-phase voltage
electrical

Modeling option — Whether to model composite or expanded three-phase ports
`Composite three-phase ports` (default) | `Expanded three-phase ports`

Input type — Type of input
`Instantaneous` (default) | `Sinusoidal magnitude and phase shift`

Rated electrical frequency — Rated electrical frequency
`60` `Hz` | scalar

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.