公开(公告)号：US09742338B2

公开(公告)日：2017-08-22

申请号：US14898797

申请日：2014-05-23

Applicant: Danfoss Power Electronics A/S

Inventor： Omid Shajarati

IPC: H02K17/32 ,  H02P27/06 ,  H02P29/024 ,  H02J9/06

CPC classification number: H02P27/06 ,  H02J9/062 ,  H02P29/025

Abstract: A method of controlling a motor drive having a normal mode wherein a DC link voltage is charged using an AC (e.g. mains) power supply and an emergency mode wherein the DC link voltage is charged using a DC supply (e.g. from a battery) is described. In the normal mode of operation, if the DC link voltage falls below a threshold indicative of the AC power supply being lost, the emergency mode is entered, typically following an intervening coast mode (during which the motor is not driven). Similarly, in the emergency mode, if the DC link voltage rises above a threshold indicative of the AC power supply being restored, the normal mode is entered, typically following an intervening coast mode.

公开(公告)号：US20160126879A1

公开(公告)日：2016-05-05

申请号：US14898797

申请日：2014-05-23

Applicant: DANFOSS POWER ELECTRONICS A/S

Inventor： Omid Shajarati

IPC: H02P27/06 ,  H02P29/02

CPC classification number: H02P27/06 ,  H02J9/062 ,  H02P29/025

Abstract: A method of controlling a motor drive having a normal mode wherein a DC link voltage is charged using an AC (e.g. mains) power supply and an emergency mode wherein the DC link voltage is charged using a DC supply (e.g. from a battery) is described. In the normal mode of operation, if the DC link voltage falls below a threshold indicative of the AC power supply being lost, the emergency mode is entered, typically following an intervening coast mode (during which the motor is not driven). Similarly, in the emergency mode, if the DC link voltage rises above a threshold indicative of the AC power supply being restored, the normal mode is entered, typically following an intervening coast mode.

Abstract translation: 一种控制具有正常模式的电机驱动器的方法，其中使用AC（例如电源）电源对DC链路电压进行充电以及使用DC电源（例如，从电池）对DC链路电压进行充电的紧急模式进行描述 。 在正常操作模式下，如果直流母线电压下降到低于表示交流电源损耗的阈值，则进入紧急模式，通常沿着中间滑行模式（电动机未被驱动）。 类似地，在紧急模式中，如果直流链路电压上升到高于表示交流电源恢复的阈值，则通常沿着中间沿岸模式进入正常模式。