I am Simulating multi-winding transformer in Simulink how to fix this error "Index exceeds the number of array elements. Index must not exceed 28."

I am making this simulation for Variable frequency drive where i have to make a multi-winding transformer in each phase of multiwindg transformer there is 33 winding and after connecting secoundary winding in ziz-ziz formaation i can get 18 output from one phase. And on that 18 output i will connect 6 three phase diodebridge rectifire and inverter circuit.

so how can i fix this error "Index exceeds the number of array elements. Index must not exceed 28."

Answer 1

[Vaibhav]

Hi Arth

It is my understanding that you are facing issues in fixing the error where index exceeds the number of array elements.

Here are steps to address and troubleshoot this issue:

1. Determine which block or part of your Simulink model is causing the error. Look for blocks or parameters that involve indexing.
2. Review the block parameters related to the multi-winding transformer and the subsequent blocks in the model. Ensure that arrays are properly sized and that indices used are within bounds.
3. Specifically, check any indexing operations or array accesses in your Simulink model. Verify that the indices used are valid and do not exceed the array sizes.
4. For the multi-winding transformer, ensure that the configuration and parameters (such as the number of windings and turns) are correctly set.
5. Use display blocks in Simulink to inspect variable values during simulation for pinpointing the error location.
6. Consider leveraging the MATLAB workspace for debugging. Use MATLAB Function blocks in Simulink or run expressions in the MATLAB Command Window.

You can refer to the following MathWorks documentation link to know more about "Multi-Winding Transformer":

https://www.mathworks.com/help/sps/powersys/ref/multiwindingtransformer.html?s_tid=doc_ta

Hope this helps!