Error in port widths or dimensions.

Question

Leo Sekar 2015-10-16

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回答： Joel Van Sickel 2024-6-10

Error in port widths or dimensions. Output port 1 of 'last/Subsystem/powergui/EquivalentModel1/Gates/From2' is a one dimensional vector with 2 elements.

AND

Error in port widths or dimensions. Invalid dimension has been specified for input port 2 of 'last/Subsystem/powergui/EquivalentModel1/Gates/Mux'.

I am using MATLAB 2010a. problem occurred in the switching circuit of invert. Anticipating your answers...

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Vinay Gurram 2022-12-27

Hello Sir,

Can you please let us know how to solve the error what you face with POWER GUI block? It would be a great help.

Atsafack Blondelle Melina 2023-4-12

Hello everyone!

Please, can someone help to solve this widths ou dimension error?

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Answer 1

Dennie 2015-10-16

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Hello Leo,

It is difficult to see from the pictures, but it looks like you have predefined the sizes of your signals. The dimensions of the signals going into the mux is not matching with what Simulink is expecting from the output. You can check this by double clicking on the problematic blocks and see which rule Simulink uses to determine the size and type of the signal.

To me it looks like the state space block is expecting a signal of the size 10x1, and the signal given to the mux is larger than that.

Kind regards,

Dennie

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sandesh khadka 2020-12-1

can you suggest me hall decoder for bldc motor

sandesh khadka 2020-12-9

i have tried that option also. i can't get answer

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Answer 2

Joel Van Sickel 2024-6-10

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It seems like question is getting a lot of activity, so I'll post another answer here. The issue with this type of port width issue has to do with using specialized power systems. Under the hood, ALL of the simulink signals going into your circuit go into a single simulink s -funciton. So this means all gate signals, any signals to controlled sources, any voltages torques, speeds, etc, going into machines. If you get this error, it means that your simulink model is putting the incorect size signal into the model. For instance, the model at the very top is having vectorized signals go into the gate port of a switch. The gate port of a switch only takes 1 signal. However, some other prebuilt converters might take additional signals. Unfortunately, the way specialized power systems works can make tracking this down a bit harder, and you need to pay close attention to the input sizes of all the ports. If you want to avoid this problem, you can use simscape (the blue components) and you won't have the issue, or if you do, it will point more specifically to where the problem is.

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Answer 3

sandesh khadka 2020-12-1

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Invalid setting for input port dimensions of 'BLDC/DECODER/Demux1'. The dimensions are being set to [-1]. This is not valid because the total number of input and output elements are not the same

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Muhammad Kamran Mustafa 2023-6-14

移动：DGM 2023-12-2

how to solve this error ?

Urveshkumar Dharmendrabhai 2023-9-20

移动：DGM 2023-12-2

I am also facing the same problem..kindly let me know if anybody of you have got the solution

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Answer 4

Haftamu Lemlem 2023-12-2

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编辑：Haftamu Lemlem 2023-12-2

i know how irritating this error could be. i also encountered the same error just yesterday and i am giving this incase someone found it helpful. i was running a delta connected CHB STATCOM and got this error repeatedly. i looked for some solutions including this very page. it might be helpful for some people but it wasnt very helpful for me. this error maybe caused because of many reasons and mine was because of the a PWM generator. i used three level PWM generator after the inverse park transformation to help me generate signals for the IGBT switches. but it turns out that the PWM generator generates 12 pulses for each phase which i connected using one line. That was the mistake and it was solved as soon as i removed the PWM from the model. so there is different reasons for this error. so just focus on your model and put each and every part carefully and reasonably.

Cheers!

Haftamu!

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Nihal Shaji 2024-3-20

I am doing something very similar involving Field Oriented Control of a PMSM, and the connections of the FOC is giving me the same error. I used a normal PWM instead of a two level but it still didn't solve itself. Did you try anything else?

laiche zeghdi 2024-3-24

i also have same problem but i got this :''Error in port widths or dimensions. Output port 1 of 'Stat_Chikh_2_trois_niv/powergui/EquivalentModel1/Gates/From27' is a [1x2] matrix.''

and this :''Error in port widths or dimensions. Invalid dimension has been specified for input port 27 of 'Stat_Chikh_2_trois_niv/powergui/EquivalentModel1/Gates/Mux'.''

help me

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