I am working on simulating controls for flyback converter . Once i was done modelling i gave the PWM generator a ramp input to understand how the output behaves . The output was in the form of steps and steadystates .
I tried using a ramp input on the SIMULINK Flyback Converter Example code and got a similar result
This is my the model I used for getting the above graph.
Modified example
Output from modified example model.
I used this example to revice a similar output , I believe there are no errors in the model construction and model parameters as i cross checked anything. Due to this behaviour i am unable to tune the PID controler as the outputwaveform is only stable at particular duty cycle ratios. If any one has experienced thios before or know why this is happening , or this is to be expected as the output, please do share. Thanks