Output in Matlab analysis tool is inverted

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imran 2016-1-6

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https://ww2.mathworks.cn/matlabcentral/answers/262901-output-in-matlab-analysis-tool-is-inverted

评论： imran 2016-1-22

hello

I am trying to linearize part of my invert model then replace the nonlinear model with linear one to check accuracy of linearization at operating point. The input to linear part is voltage and outputs are angle and currents. Both currents and voltages are in dq0 reference frame. In output of linear model the currents are inverted but angle is the same. I have attached the output of both linear and non-linear model. Kindly if someone tell me what is happening?

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imran 2016-1-18

编辑：imran 2016-1-18

1.I obtain the trim point for which all states are in steady state as explained in this documentation here. With unknown values and no output and input values for trim point specifications.

2. After i get the trim point I used this method to linearize the block ' inv_dq' in the file 'test.mdl'

3. After getting teh lineariz model i replaced it with a state space model in 'linear_model.mdl'.and then compare the both results.

imran 2016-1-22