hello,
I have designed a compensator type 2 (according to the k-factor approach)for my peak current mode control of boost converter for chosen crossover frequency of 30KHz and its transfer function is :
Gc=(2.188 s + 1.066e05)/(1.372e-06 s^2 + s) where the power stage gain is -6.8dB. so my circuit is attwached as you can see.
my problem when I run circuit using this conpensator in PLECS I get a huge oscillation of the system eventhough when the bode plot of the complete system gives a good result accorcing to its complete transfer function, I have noticed that whenever I set an initial value to the output capacitor to 9.5V my system works perfectly.So my question is my compensator is wrong which i doubt ot I must include an initial value to the capacitor thanks