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Current Source (Three-Phase)

Ideal three-phase current source

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  • Simscape / Electrical / Sources

  • Current Source (Three-Phase) block


The Current Source (Three-Phase) block models an ideal three-phase current source that maintains sinusoidal currents of the specified magnitude through its terminals, independent of the voltage across the source.

The output current is defined by the following equations:






  • I0 is the peak phase current.

  • iphase_rms is the RMS phase current.

  • ia, ib, ic are the respective phase currents.

  • f is the frequency.

  • φ is the phase shift.

  • t is the time.

The arrow indicates the positive direction of the current flow. The source has a wye configuration, and port n provides a connection to the center of the wye.



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Expandable three-phase port associated with the three phases, a, b, and c.

Electrical conserving port associated with the center of the wye


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RMS phase current.

Phase shift, in angular units.

Current frequency, specified in Hz or units directly convertible to Hz (where Hz is defined as 1/s). For example, kHz and MHz are valid units, but rad/s is not.

Extended Capabilities

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

Introduced in R2013b