Disclosed herein is an electric power supply system in which two or more power converters are connected in parallel between a battery and a load apparatus, in which a battery temperature is increased rapidly in cases where the battery temperature is low. An electric power supply system 2 includes a battery 3, two voltage converters 10a, 10b, and a controller 9. The two voltage converters 10a, 10b are connected in parallel. The controller 9 supplies drive signals having a same waveform to transistors of the power converters 10a, 10b. When a temperature of the battery 3 is lower than a predetermined threshold temperature, the controller 9 supplies to the transistors of the power converters 10a, 10b the drive signals having the same waveform but with a smaller phase difference than in a case where the temperature of the battery 3 is higher than the threshold temperature.
ELECTRIC POWER SUPPLY SYSTEM
15.06.2017
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 / 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 |
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