The present invention relates to a chiller. A motor driving apparatus and an electric vehicle including the same according to an embodiment of the present invention include a motor, an inverter having a plurality of switching elements and outputting AC power to the motor, an inverter control part for controlling the inverter, an output current detection part for detecting an output current flowing in the motor, and a position detection sensor for detecting the position of the rotor of the motor. The inverter control part estimates a second phase current based on a first phase detection current detected by the output current detection part, compares a second phase detection current detected by the output current detection part with the estimated second phase estimation current, and determines whether or not the output current detection part is faulty. Based on the result, it is possible to easily detect the failure of the output current detection part for detecting the output current flowing in the motor.

    본 발명은 칠러에 관한 것이다. 본 발명의 실시예에 따른 모터 구동장치 및 이를 구비하는 전기 차량은, 모터와, 복수의 스위칭 소자를 구비하고, 모터에 교류 전원을 출력하는 인버터와, 인버터를 제어하는 인버터 제어부와, 모터에 흐르는 출력 전류를 검출하는 출력 전류 검출부와, 모터의 회전자의 위치를 검출하는 위치 검출 센서를 포함하고, 인버터 제어부는, 출력 전류 검출부에서 검출되는 제1 상 검출 전류에 기초하여, 제2 상 전류를 추정하고, 출력 전류 검출부에서 검출되는 제2 상 검출 전류와, 추정된 제2 상 추정 전류를 비교하여, 출력 전류 검출부의 고장 유무를 판단한다. 이에 기초하여, 모터에 흐르는 출력 전류를 검출하는 출력 전류 검출부의 고장을 간편하게 검출할 수 있게 된다.


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    Titel :

    Motor driving apparatus and electric vehicle including the same


    Weitere Titelangaben:

    모터 구동장치 및 이를 구비하는 전기 차량


    Beteiligte:

    Erscheinungsdatum :

    01.08.2018


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / 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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