An inverter control device comprising: a voltage detection means for detecting the direct-current voltage of an inverter (6) that converts a direct-current power input from a direct-current power supply into an alternating-current power; a target value calculation means for calculating a target value of an alternating current output from the inverter (6) based on a detection voltage detected by the voltage detection means; an inverter control means for generating a control signal for a switching element involved in the inverter (6) based on the detection voltage and the target value to control the inverter (6); an abnormality detection means for detecting the occurrence of an abnormality in the voltage detection means; and a voltage clamp means for clamping a detection voltage to be used for calculating the target value at a first assured voltage and a detection voltage to be used for generating a control signal is clamped at a second assured voltage that is higher than the first assured voltage when the abnormality is detected by the abnormality detection means, wherein the first assured voltage is determined based on the lower limit area of an assured voltage range that assures the performance of the inverter (6).
INVERTER CONTROL DEVICE AND INVERTER CONTROL METHOD
UMRICHTERSTEUERUNGSVORRICHTUNG UND UMRICHTERSTEUERUNGSVERFAHREN
DISPOSITIF ET PROCÉDÉ DE COMMANDE D'INVERSEUR
2020-08-26
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |