Current Source (Three-Phase)
Ideal three-phase current source
Simscape / Electrical / Sources
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.
~ — Three-phase port
Expandable three-phase port associated with the three phases, a, b, and c.
n — Wye center
Electrical conserving port associated with the center of the wye.
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.
Current (phase RMS) — RMS phase current
100 / sqrt(2)
RMS phase current.
Phase shift — Phase shift
Phase shift, in angular units.
Frequency — Current frequency
Current frequency, specified in Hz or units directly convertible to Hz
(where Hz is defined as 1/s). For example,
MHz are valid units, but
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Introduced in R2013b