INVERTER AND POWER SYSTEM WITH FUSE PROTECTION

摘要

A power conversion system includes a bus bar, a switch coupled to the bus bar and configured to receive a DC input voltage from a voltage source through the bus bar, and a parallel fuse system. The parallel fuse system may be disposed on the bus bar in series with the voltage source and the switch. The parallel fuse system includes two or more parallel fuses, and may be configured for an inductance imbalance between the fuses, such that there is an asymmetric flow of currents through the fuses when the power conversion system is in operation. For the inductance imbalance, for example, the fuses may be positioned asymmetrically with regard to a shortest conductive path from the voltage source to the switch.

主权项

1. A power conversion system, comprising:
a bus bar; a switch coupled to the bus bar and configured to receive a DC input voltage from a voltage source through the bus bar; and a parallel fuse system disposed on the bus bar in series with the voltage source and the switch, the parallel fuse system comprising two or more parallel fuses, wherein the parallel fuse system is configured for an inductance imbalance between the fuses during operation of the power conversion system.