Induction Machine Scalar Control
Induction machine V/f control
Simscape / Electrical / Control / Induction Machine Control
The Induction Machine Scalar Control block implements an induction machine scalar, that is V/f or V/Hz, control structure. The diagram shows the open-loop V/f control structure that the block implements.
The Induction Machine Scalar Control block computes the magnitude of the stator voltage based on the reference frequency, , as:
Vn is the rated voltage.
Vmin is the minimum voltage.
fn is the rated electrical frequency.
fmin is the minimum frequency.
The voltage components in the stationary reference frame are:
The block obtains Vabc from Vα and Vβ by using an inverse Clarke transformation.
fRef — Frequency
Reference electrical frequency.
Vabc — Voltage
Reference phase voltages.
Rated electrical frequency (Hz) — Frequency
60 (default) | positive scalar
Rated voltage (V) — Voltage
550 (default) | positive and greater than the value of the Minimum voltage
Minimum voltage (V) — Voltage
10 (default) | zero or positive
Lower bound for the voltage.
Sample time (-1 for inherited) — Block sample time
-1 (default) | positive scalar
Time, in s, between consecutive block executions. During execution, the block produces outputs and, if appropriate, updates its internal state. For more information, see What Is Sample Time? and Specify Sample Time.
If this block is inside a triggered subsystem, inherit the
sample time by setting this parameter to
-1. If this block is in a
continuous variable-step model, specify the sample time explicitly using a positive