I’ve got a situation where I have a generator hooked up to a rectifier doing space vector control. The rectifier has an LC filter. Inductor current and cap voltage is measured. The L from the generator makes up the second L. I didn’t put a virtual damper in the fpga code (like I should have) and am trying different things. This is only a prototype so just working is the main thing. Which would be the best way to go in my current situation?
*pole cancellation in the digital controller (in dq and 0 components)
*Adding a physical damping resistor to the filter cap
*increasing filter cap
*removing filter cap (voltage Pll seems to track fine on HIL and simulation but haven’t tried on power hardware)
Sorry about posting too much, but I’m thankful for any suggestions!