Help me finish the scheme in MATLAB

Question

Arman Mokrousov 2023-6-5

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1978824-help-me-finish-the-scheme-in-matlab

评论： Arman Mokrousov 2023-6-11

采纳的回答： Joel Van Sickel

nn.slx

在 MATLAB Online 中打开

I have created a part of the schema, but I do not know how to complete it. When adding new elements, new errors also appear)

I inserted a screenshot of what I was supposed to get. Please tell me what to add. Thank you in advance.

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Arman Mokrousov 2023-6-6

here are the errors

The model may not give enough information to make it possible to solve for values of some of its variables. Specific advice is given below.

all components and nodal across variables involved

Tie variable 'Voltage_Sensor.p.v' (Voltage) to a definite value, for example by connecting an appropriate domain reference block.

Dependency found among topology equations. Check for missing reference node.

Component:Simulink | Category:Model warning

The model may not give enough information to make it possible to solve for values of some of its variables. Specific advice is given below.

all components and nodal across variables involved

Tie variable 'Voltage_Sensor.p.v' (Voltage) to a definite value, for example by connecting an appropriate domain reference block.

Dependency found among topology equations. Check for missing reference node.

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Answer 1

Joel Van Sickel 2023-6-7

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1978824-help-me-finish-the-scheme-in-matlab#answer_1251974

This issue is that because an ideal transformer is used, it is perfectly isolated from the rest of the circuit. Unfortunately, Simscape doesn't support pure floating circuits. This can be solved 2 ways. You can place an electrical reference under R_H (it is resistor 3 in your simulink model) or you can place a very large resistance between both sides of the transformer. I recommend adding the electrical reference as it won't change your results.