High-voltage line protection strategies. Each high-voltage line is designed with a line protection function, which is protected by a fuse to ensure that the line is disconnected from overcurrent.
High voltage busbar ripple and UCG design requirements. The voltage ripple in different frequency domains on the entire DC bus is analyzed through software simulation to ensure that all high-voltage components work normally. In addition, the software analyzes the highest back EMF voltage under uncontrolled regenerative braking to ensure that the DC bus components and the AC side of the motor controller are not affected.