A regenerative elevator drive is arranged to receive power from an external power source and provide regenerative energy thereto, and is arranged to direct excess regenerative energy through a dynamicbrake resistor. The inverter is arranged to receive a DC voltage obtained from an external power supply and to convert the DC voltage to an AC voltage for output to an external motor. A DC link capacitor is bridged at the input of the inverter. The circuit breaker unit is arranged to switch between a first state providing a connection between the inverter and an external power source and a secondstate disconnecting the inverter from the external power source. The circuit breaker unit is arranged to provide a discharge path from the DC link capacitor via the dynamic brake resistor only in thesecond state. The driver may also determine a state of health and/or an expected life of the battery by passing current from the battery through the dynamic brake resistor.

    一种再生电梯驱动器布置成从外部电源接收电力并向其提供再生能量,并且布置成引导多余的再生能量通过动态制动电阻器。逆变器布置成接收从外部电源获得的DC电压,并且将DC电压转换成AC电压以输出到外部电动机。DC链路电容器跨接在逆变器的输入处。断路器单元布置成在提供逆变器和外部电源之间的连接的第一状态和使逆变器与外部电源断开连接的第二状态之间切换。断路器单元布置成仅在第二状态下经由动态制动电阻器提供从DC链路电容器的放电路径。驱动器还可通过使来自电池的电流通过动态制动电阻器来确定电池的健康状态和/或预期寿命。


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    Title :

    Regenerative drive


    Additional title:

    再生驱动器


    Contributors:

    Publication date :

    2020-11-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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