Problem with linear analysis tool

hello

I am trying to linearize a subsystem 'Power controller' in my inverter model and i am not getting desired output after linearization. For linearization i am using following procedure:

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 ' power controller' in the file 'test.mdl'

3. After getting the linearize model i replaced it with a state space model in 'linear_model.mdl' and then compared the output current in both cases. The linear model has inverted outputs.

The mathematical model of the 'power controller' is given by following nonlienar state space.

I have attached the files for models and associate parameters. Kindly anyone can tell me what i am doing wrong in linearization as I am having trouble when i try to linearize nonlinear R matrix in simulink ?

Regards Imran

[imran]

anyone?

[Sulaymon Eshkabilov]

What are your state space model parameters: A B C, D?..