A motor drive system for an electrified vehicle includes a DC source, such as a battery, and an inverter, which includes one or more phase drivers, each configured to switch current from the DC source to generate AC power upon one or more output terminals using a hybrid of two or more different solid-state switches, each having a corresponding voltage rating. A nine-switch inverter includes three phase drivers, each including high, low, and middle solid-state switches, with Si-MOSFET high and low switches having a first voltage rating of half of the rated voltage of the system, and with Gallium Nitride (GaN) transistors rated to block a full rated voltage of the system used for the middle switches. A delay driver synchronizes timing between two different solid-state switches by energizing control terminals at different rates. The inverter can be operated using near-state pulse-width modulation (NSPWM) to reduce switching losses.
MOTOR DRIVE TOPOLOGIES FOR TRACTION AND CHARGING IN ELECTRIFIED VEHICLES
MOTORANTRIEBSTOPOLOGIEN FÜR ZUGKRAFT UND LADUNG IN ELEKTRIFIZIERTEN FAHRZEUGEN
TOPOLOGIES D'ENTRAÎNEMENT DE MOTEUR POUR LA TRACTION ET LA CHARGE DANS DES VÉHICULES ÉLECTRIFIÉS
2022-05-18
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 |
MOTOR DRIVE TOPOLOGIES FOR TRACTION AND CHARGING IN ELECTRIFIED VEHICLES
European Patent Office | 2020
|MOTOR DRIVE TOPOLOGIES FOR TRACTION AND CHARGING IN ELECTRIFIED VEHICLES
European Patent Office | 2022
|MOTOR DRIVE TOPOLOGIES FOR TRACTION AND CHARGING IN ELECTRIFIED VEHICLES
European Patent Office | 2020
|