The present invention implements a PWM method that allows for an output of zero voltage to the maximum voltage while keeping a predetermined switching frequency and reduces alternating current ripple even if a condition of a low switching frequency. In a region on a 60-degree basis that is one-sixth of one period of an alternating-current voltage to be output by an inverter device when the one period is 360 degrees, ON-OFF control is performed in switching elements for one phase, and an ON or OFF state is held in switching elements for the other two phases. The phase regions in which the ON-OFF control is performed are phase regions containing the local maximum values or local minimum values of the alternating-current voltages for the respective phases.
Inverter device and inverter control device for controlling the same
Umrichtervorrichtung und Umrichtersteuervorrichtung zu seiner Steuerung
Dispositif onduleur et dispositif de commande d'onduleur pour le commander
2019-10-16
Patent
Electronic Resource
English
IPC: | 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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
INTEGRATED INVERTER-CHARGER DEVICE AND CONTROL METHOD FOR CONTROLLING SAME
European Patent Office | 2021
|