Aaliyah asked . 2020-07-10

how can I overcome on algebraic loop in simulink

I faced error in simulink when I use PV-block that located in renewable library which developed by mathworks team- with inverter (power electronic) with powergui block (discrete mode time =1e-6) and the PWM in the inverter (5Khz)

I tried to install memory block and unit delay block around the error area which is in ( PV Array/Diode Rsh/Product5 ) but it doesn't work still the same problem

I tried to minimize the sampling time in powergui from 1e-6 to 1e-8 , it works but it takes very very long time even if the simulation stop time is 0.1 unit time

simulink , matlab

Expert Answer

Neeta Dsouza answered . 2024-12-25 02:53:43

Basialy algebric loop error occure in simulink model whenever zero is come in denomenator part of any function.

To ovecome the algebric loop error in simulink model due to -: PV Array/Diode Rsh/Product5.

follow two steps;

Double click to PV array > advanced > check to check box in break algebric loop in internal model
Go on the model configuration parameter model> zero crosing options > Zero-crossing control: Disable all

In this way your problem will be solved.

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