An electric power supply system includes: a positive-electrode-side contactor inserted into a positive power line; a negative-electrode-side contactor inserted into a negative power line; a pre-charge circuit; an electric potential difference detector that detects an electric potential difference between both ends of the positive-electrode-side contactor; and a contactor controller that receives an output of the electric potential difference detection circuit, and controls the positive-electrode-side contactor and the negative-electrode-side contactor, in which the contactor controller temporarily turns on the positive-electrode-side contactor in a state where the negative-electrode-ide contactor is turned off when the electric power supply system is started, retains an output of the electric potential difference detection circuit during this on period as a correction value, turns off the positive-electrode-side contactor and turns on the negative-electrode-side-contactor after the retention, and turns on the positive-electrode-side contactor when an output of the electric potential difference detection circuit has reached the correction value.
ELECTRIC POWER SUPPLY SYSTEM AND CONTROL METHOD FOR ELECTRIC POWER SUPPLY SYSTEM
03.10.2024
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 / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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