Exponential and Polynomial/ZIP Single phase load in simulink
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I am trying to implement a non liner voltage dependent load model. The load models are exponential and as well as polynomial.
Power = P0 (V/Vo)^np
I have trying to implement this as below:
I want to acheive a non linear (distorted sinewave) current draw as shown below to conduct load flow and harmonic studies.
Joel Van Sickel on 22 Sep 2021
your absolute value will prevent it from every being truly sinusoidal. The model is outputting exactly the math that you have implemented in Simulink. You need to find a different mathematical representation of your current waveform that does not require a divide by voltage since this is a single phase AC system and voltage will always cross 0.
I think the issue is that you are using a distortion model intended for three phase networks and doing them for a single phase network. If you did this with three phase values you should not have to divide by zero as V is not the instantaneous voltage of any phase, but the overal voltage magnitude of the system.