A failure diagnosis method for an inverter circuit includes a first monitoring step of monitoring an inter-terminal voltage between a high-potential-side terminal and a low-potential-side terminal of each of a plurality of driving devices included in the inverter circuit, and a second monitoring step of monitoring a power supply voltage of the inverter circuit. A determination step of determining whether there is a failure in each of the driving devices from a value of the inter-terminal voltage and a value of the power supply voltage is included.
FAILURE DIAGNOSIS METHOD FOR INVERTER CIRCUIT
2019-10-17
Patent
Electronic Resource
English
IPC: | H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B62D MOTOR VEHICLES , Motorfahrzeuge / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |