Generate three-phase balanced signal, amplitude, phase, and frequency controlled by block inputs
Simscape / Electrical / Specialized Power Systems / Control & Measurements / Pulse & Signal Generators
Simscape / Electrical / Specialized Power Systems / Fundamental Blocks / Power Electronics / Pulse & Signal Generators
Use the Three-Phase Sine Generator block to generate a three-phase balanced sinusoidal signal (positive-sequence). This vectorized signal usually represents a set of three-phase voltages or currents. Three inputs let you control the amplitude, phase, and frequency of the three-phase output signal.
Specify the sample time of the block, in seconds. Set to
implement a continuous block. Default is
Specify the amplitude of the three-phase output signal.
Specify the angle, in degrees, of the three-phase output signal.
Specify the frequency, in hertz, of the three-phase output signal.
Returns the three-phase signal.
Angle (rad) varying between 0 and 2*pi, synchronized on zero crossings of the fundamental (positive-sequence) of phase A.
shows the use of the Three-Phase Sine Generator block.
The initial three-phase signal is set to 1 pu, 60 Hz, 90 deg. The following variations are applied on amplitude and frequency while phase stays constant:
From 0.1 s to 0.4 s, frequency is ramped from 60 Hz to 63 Hz.
From 0.2 s to 0.4 s, amplitude is sinusoidally modulated with an amplitude of 0.4 pu and a frequency of 5 Hz.
Measured amplitude and frequency are compared with specified values.
The model sample time is parameterized with variable Ts (default value Ts = 50e-6). To simulate the continuous Three-Phase Programmable Generator block, specify Ts = 0 in the command window.