지상측에 설치되는 송전 장치(10) 및 차량에 설치되는 수전 장치(20)를 구비하고, 송전 장치(10)로부터 수전 장치(20)에, 인버터 회로(12)에 의해 제어된 전력을 비접촉으로 송전하는 비접촉 급전 시스템이며, 무선 신호에 의해 수전 장치(20)로부터 송전 장치(10)에, 제1 주기(T1)로 전력 공급 명령 신호를 송신한다. 그리고, 송전 장치(10)는, 송전 코일(13)에 흐르는 송전 코일 전류를 검출하는 송전 코일 전류 검출 수단을 갖고, 전력 공급 명령 신호와, 제1 주기보다도 짧은 제2 주기로 송전 코일 전류 검출 수단에 의해 검출되는 송전 코일 전류에 기초해서 인버터 회로(12)의 출력 전압을 제어한다.

    A wireless power supply system includes a power transmission device (10) provided on a ground side and a power receiving device (20) mounted on a vehicle, the power transmission device (10) transmitting, to the power receiving device (20) via a wireless connection, electric power controlled by an inverter circuit (12), wherein the power receiving device (20) transmits a power supply command signal to the power transmission device (10) in a first cycle by use of a radio signal. The power transmission device (10) includes a power transmission coil current detection means for detecting a power transmission coil current flowing through a power transmission coil (13) and controls an output voltage of the inverter circuit (12) based on the power supply command signal and the power transmission coil current detected by the power transmission coil current detection means in a second cycle shorter than the first cycle.


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    Title :

    WIRELESS CHARGING SYSTEM AND POWER TRANSMISSION DEVICE


    Additional title:

    비접촉 급전 시스템 및 송전 장치


    Contributors:

    Publication date :

    2016-04-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    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 / 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



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