A motor driving apparatus is disclosed, including a driving circuit (201) outputting a three-phase alternating current and a main controller (202). The driving circuit (201) includes a U-phase electric driving circuit (2011), a V-phase electric driving circuit (2012), and a W-phase electric driving circuit (2013). Each of the electric driving circuits includes n storage batteries and n electric driving units in one-to-one correspondence with the n storage batteries. Signal ends of the n electric driving units are connected to the main controller (202), input ends of the n electric driving units are connected to the corresponding storage batteries, and output ends of the n electric driving units are cascaded to output one phase of the three-phase alternating current, where n is a positive integer. The main controller (202) determines, for each electric driving circuit in the driving circuit (201), an output voltage adjustment coefficient of each of the n electric driving units in the electric driving circuit based on voltages of the n storage batteries in the electric driving circuit, and outputs the output voltage adjustment coefficient to the corresponding electric driving unit. The apparatus can improve storage battery utilization.
ELECTRIC MOTOR DRIVE APPARATUS AND ELECTRIC AUTOMOBILE
ELEKTROMOTORANTRIEBSVORRICHTUNG UND ELEKTROAUTO
APPAREIL D'ATTAQUE DE MOTEUR DE VÉHICULE ET VÉHICULE AUTOMOBILE ÉLECTRIQUE
24.03.2021
Patent
Elektronische Ressource
Englisch
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 |
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