how can I overcome on algebraic loop in simulink
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Rashed HD on 26 Mar 2020
Commented: ATHIRA E R on 13 Jun 2020
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
if anybody can helps me .... please i'm trouble
Pemendra Kumar Pardhi on 29 Mar 2020
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.
Pemendra Kumar Pardhi
More Answers (1)
Divya Yerraguntla on 31 Mar 2020
- This issue might occur when you are using the integrator block with 0 initial condition, try changing the initial condition to 0.0000001 instead.
- Else, you could also try changing the Solver to ODE15s (stiff/NDF) under the Type : Variable Step in the Model Configuration Parameters/Solver/Solver Options
Hope it helps!
ATHIRA E R on 13 Jun 2020
I also followed the above steps and Im getting tha same error menioned above by RASHED MD. Can you help me to fix that error?
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