Inverter and power system with fuse protection
First Claim
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.
2 Assignments
0 Petitions
Accused Products
Abstract
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.
-
Citations
22 Claims
-
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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A vehicle comprising:
-
a bus bar; a power converter comprising plural switches, wherein at least some of the switches are coupled to the bus bar; and a parallel fuse system disposed on the bus bar and comprising two or more fuses in parallel, wherein the parallel fuse system is electrically connected in series with the power converter and a power source, and wherein the fuses of the parallel fuse system are located below and laterally offset from the plural switches, such that debris from the switches, if falling vertically downwards, does not encounter the fuses, and debris from the fuses, if falling downwards, does not encounter the switches, relative to at least when the vehicle is in contact with a level surface for motive operation of the vehicle.
-
-
17. A power conversion system comprising:
-
a power converter comprising six switches, the six switches comprising three upper switches coupled to a first bus bar and three lower switches coupled to a second bus bar, wherein the three upper switches coupled to the first bus bar are configured to receive a DC positive input voltage from a voltage source through the first bus bar and the three lower switches coupled to the second bus bar are configured to receive a DC negative input voltage from the voltage source through the second bus bar; and a parallel fuse system disposed on the first bus bar or the second bus bar, electrically connected in series with the voltage source and the six switches, the parallel fuse system comprising three parallel fuses, wherein the parallel fuse system is configured for an inductance imbalance between the parallel fuses during operation of the power converter. - View Dependent Claims (18, 19, 20, 21, 22)
-
Specification