Simulink PI controller error

Hello

I am buidling a modeling of boost PFC based on youtube lecture.

((1) MATLAB Simulation of a PFC Boost Converter - YouTube)

Even I designed same model as online lecture.

I have some error regarding PI controller as you can see the below picture.

Could you please check why I faced in this trouble ?

I attached my simulink data.

Please review my simulink error and give me feedback.

Thanks

Answer 1

[MULI]

I understand that simulation is stopped due to singularity in the solution.

This error is due to usage of RMS block that belongs to “DSP System Toolbox / Statistics” which gives the positive portion of the signal that has value zero at start of simulation which creates an issue since a division block is also used in the model.

Replace this with RMS block that belongs to “Simscape / Electrical / Specialized Power Systems / Sensors and Measurements” which computes the true root mean square (RMS) value of the input signal.

You may refer the link below for more information regarding this block:

https://www.mathworks.com/help/releases/R2019b/physmod/sps/powersys/ref/rms.html?searchHighlight=RMS&s_tid=doc_srchtitle

I am attaching the Simulink model by replacing the correct RMS block which runs successfully.