Powergui error - invalid port dimensions

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Greg Whelan
Greg Whelan 2017-4-10
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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回答（1 个）

Joel Van Sickel
Joel Van Sickel 2020-9-17
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
  2 个评论
Abd Al-Rahman Al-Remal
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
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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