Undefined function or variable "xa" error message
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James jayimbo@gmail.com
2011 年 11 月 27 日
Hi. As part of my research work, I am investigating the synchronous machine stability at low speeds. I connected the SI fundamental simulink blockset machine with exciter and speed input to a load. Before I simulating I have tried to carry out a load flow to get steady state using the powergui with no success! I keep getting the error, Undefined function or variable "xa" in the matlab window. Unfortunately I cant get past this error and its delaying my research considerably. Can anyone give me direction on this please.....Thanks.
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Fangjun Jiang
2011 年 11 月 27 日
In the Simulink model, press Ctrl+F, search where the variable 'xa' is used. Then assign a proper value to 'xa' in MATLAB Command Window, for example:
xa=1
4 件のコメント
J Gunda
2014 年 10 月 21 日
Hi James...
I am trying to simulate synchronous machine per unit standard block. I have filled all the values but if I observe the waveform of voltage and current its not sinusoidal.
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