I am doing project on electrical vehicles.
I need 400v from 120 v of batteries. I am testing my bidirectional converter in boost. I suddenly disconnect the load when the output voltage 350v. So the output voltage increase as without load of boost converter. But it should to operate in buck mode when the voltage is 420v.
When i disconnected the load at 350V suddenly. The boost converter configuration switches burnt out. The voltage increases so rapidly that controller didn't take any decision to operate in buck mode. Can you tell me this is happened. Controller should take decision to operate it in buck.
Should I not to remove the load suddenly on boost mode?
I need to operate the boost even when the vehicles is stopped. But its voltage will constantly increase.
What do I need to do? What should I do for the unloaded condition in my vehicles?