公开(公告)号：US09525369B2

公开(公告)日：2016-12-20

申请号：US14665402

申请日：2015-03-23

Applicant: TRANE INTERNATIONAL INC.

Inventor： David M. Foye ,  Victor R. Stefanovic

IPC: H02P6/12 ,  H02P6/24 ,  F04B35/04 ,  F04B49/06 ,  H02P3/22 ,  H02P3/18 ,  H02P6/18

CPC classification number: H02P6/12 ,  F04B35/04 ,  F04B49/06 ,  F04B2203/0202 ,  H02P3/18 ,  H02P3/22 ,  H02P6/182 ,  H02P6/24 ,  H02P29/0241

Abstract: A system includes a motor, an inverter bridge, a voltage detection circuit, and a controller. The motor has a stator and a rotor. The inverter bridge is configured to provide a voltage to the stator, and includes a first switch connected in a series-type relationship with a second switch, a first diode coupled across the first switch, and a second diode coupled across the second switch. The voltage detection circuit is configured to detect a back EMF voltage in the winding. The controller is configured to control the first switch and the second switch to drive the motor, and to receive an indication of the back EMF voltage in the winding from the voltage detection circuit. The controller is also configured to determine a fault has occurred, and to drive one of the first switch and the second switch when a fault has occurred.

公开(公告)号：US20150263655A1

公开(公告)日：2015-09-17

申请号：US14665402

申请日：2015-03-23

Applicant: TRANE INTERNATIONAL INC.

Inventor： David M. Foye ,  Victor R. Stefanovic

IPC: H02P6/12 ,  H02P6/24

CPC classification number: H02P6/12 ,  F04B35/04 ,  F04B49/06 ,  F04B2203/0202 ,  H02P3/18 ,  H02P3/22 ,  H02P6/182 ,  H02P6/24 ,  H02P29/0241

Abstract: A system includes a motor, an inverter bridge, a voltage detection circuit, and a controller. The motor has a stator and a rotor. The inverter bridge is configured to provide a voltage to the stator, and includes a first switch connected in a series-type relationship with a second switch, a first diode coupled across the first switch, and a second diode coupled across the second switch. The voltage detection circuit is configured to detect a back EMF voltage in the winding. The controller is configured to control the first switch and the second switch to drive the motor, and to receive an indication of the back EMF voltage in the winding from the voltage detection circuit. The controller is also configured to determine a fault has occurred, and to drive one of the first switch and the second switch when a fault has occurred.

Abstract translation: 系统包括电动机，逆变器桥，电压检测电路和控制器。 电机具有定子和转子。 逆变器桥被配置为向定子提供电压，并且包括与第二开关以串联型关系连接的第一开关，跨越第一开关耦合的第一二极管和跨越第二开关耦合的第二二极管。 电压检测电路被配置为检测绕组中的反电动势电压。 控制器被配置为控制第一开关和第二开关以驱动电动机，并且从电压检测电路接收绕组中的反电动势电压的指示。 控制器还被配置为确定发生了故障，并且在发生故障时驱动第一交换机和第二交换机之一。