Asynchronous machine V/f control
Simscape / Power Systems / Simscape Components / Control / ASM Control
The ASM Scalar Control block implements an asynchronous machine (ASM) 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 ASM 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.
Reference electrical frequency.
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 (V) parameter
Minimum voltage (V)— Voltage
10(default) | zero or positive
Lower bound for the voltage.
Sample time (-1 for inherited)— Sampling interval
-1(default) | default value or a positive number
Time interval between samples. If the block is
inside a triggered subsystem, inherit the sample time by setting this
-1. If this block is in a continuous
variable-step model, specify the sample time explicitly. For more
information, see What Is Sample Time? (Simulink) and
Specify Sample Time (Simulink).