How to model 3 phase equivalent source

Question

Ayush Chandel 2017-5-10

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/339729-how-to-model-3-phase-equivalent-source

回答： Gautham Sholingar 2017-5-15

I have Positive sequence impedance and zero sequence impedance as well as 3 phase fault data os a substation source.

Z1 = 0.5 + j3.5 ohms Z0 = 0.4 + j3 ohms

I short circuit = 3961 Amps Voltage is 25 kV.

How can I model this in matlab simulink? Thank You.

Regards AC

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Answer 1

Gautham Sholingar 2017-5-15

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https://ww2.mathworks.cn/matlabcentral/answers/339729-how-to-model-3-phase-equivalent-source#answer_267143

A good starting point to model this scenario is to look at the 'Three-Phase Mutual Inductance Z1-Z0' block which shows how to model 3-phase mutual inductance. The following documentation link explains this in detail:

http://www.mathworks.com/help/physmod/sps/powersys/ref/threephasemutualinductancez1z0.html

The example link on this page: "power_3phmutseq10" illustrates the use of this block to build a three-phase inductive source with different values for the positive-sequence and zero sequence impedance.