Powergui error - invalid port dimensions

Question

Greg Whelan 2017-4-10

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https://ww2.mathworks.cn/matlabcentral/answers/334531-powergui-error-invalid-port-dimensions

评论： Joel Van Sickel 2021-6-30

I was able to get an equivalent model, with a different control subsystem to simulate.

With a new control I am getting the error in the image, stating the powergui vector dimensions are now incorrect.

The model is a bidirectional DC-DC converter; before there were no PWM blocks as the control system handled that, they needed to be added here.

Taking a stab if anyone has any answers on here.

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Answer 1

Joel Van Sickel 2020-9-17

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https://ww2.mathworks.cn/matlabcentral/answers/334531-powergui-error-invalid-port-dimensions#answer_496270

Hello Greg,

the gate signal has 6 pulses in it. These need to be split out and provided individually to the switches, or use the universal bridge block and set it to be an inverter.

Regards,

Joel

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Abd Al-Rahman Al-Remal 2021-6-30

Apologies for asking on an old question however I'm getting the same error as Greg did (albeit for a different application as I'm modelling a wind turbine) however I'm not sure what you mean by splitting the 6 pulse in the gate?

Any clarification would be appreciated however no worries if not.

Best,

Abd

Joel Van Sickel 2021-6-30

Hello Abd,

you need to create the PWM signals for each switch, and if the switches are part of a converter block, merge them with a mux block.. There are a few examples of how to do this.

https://www.mathworks.com/help/physmod/sps/ug/wind-farm-dfig-detailed-model.html

Regards,

Joel

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