How to measure the frequency response of power system network in Simulink?

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sara 2011 年 5 月 17 日

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Hi,

I have implemented a power system network consisting of four substations in Simulink. The system is connected to a nonlinear load modelled with 6-pulse diode bridge rectifier. My task is to analyse harmonic penetration in the network. Therefore I need to observe the frequency response of the system. Does anyone know how to measure the frequency response of the system using Simulink?

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Answer 1

Arnaud Miege 2011 年 5 月 18 日

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You can use Simulink Control Design to linearize the model around an operating point. If you have any PWM switching (which I suspect you do), that's likely to cause problems. The other alternative is to use frestimate, also from Simulink Control Design. Have a look at the examples on the demos web page of Simulink Control Design.

HTH,

Arnaud