公开(公告)号：US20150244290A1

公开(公告)日：2015-08-27

申请号：US14711846

申请日：2015-05-14

Applicant: Caterpillar Inc.

Inventor： Baojun Si ,  Dustin Selvey ,  William J. Tate ,  Michael Jensen

IPC: H02P3/14

CPC classification number: H02P3/18 ,  B60L1/003 ,  B60L1/06 ,  B60L7/14 ,  B60L15/007 ,  B60L15/2009 ,  B60L50/13 ,  B60L50/40 ,  B60L2210/30 ,  B60L2210/40 ,  B60L2240/12 ,  B60L2240/34 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/441 ,  B60L2240/443 ,  Y02T10/645 ,  Y02T10/70 ,  Y02T10/7022 ,  Y02T10/7077 ,  Y02T10/7241 ,  Y02T10/7275

Abstract: The present disclosure is related to a method for regenerative braking of a machine. The machine includes an electric drive assembly. The electric drive assembly includes a generator, a motor and a direct current bus and a regenerative brake assembly disposed between them. The regenerative braking assembly includes an inverter. The method includes connecting a phase leg between the direct current bus and the inverter. The phase leg includes an inductor and an electric switch. The phase leg boosts the regenerative voltage. The boosted regenerative voltage is then fed back to control a braking torque from the motor and directed back to the generator.

Abstract translation: 本公开涉及一种机器的再生制动方法。 该机器包括电驱动组件。 电驱动组件包括发电机，电动机和直流母线以及设置在它们之间的再生制动组件。 再生制动组件包括逆变器。 该方法包括在直流总线和逆变器之间连接相支路。 相位支路包括电感器和电开关。 相位腿提高再生电压。 然后将升压的再生电压反馈以控制来自电动机的制动转矩并且引导回发电机。

公开(公告)号：US20150244292A1

公开(公告)日：2015-08-27

申请号：US14711856

申请日：2015-05-14

Applicant: Caterpillar Inc.

Inventor： Baojun Si ,  Dustin Selvey ,  William J. Tate ,  Alexander C. Crosman, III

IPC: H02P3/22

CPC classification number: H02P3/22 ,  B60L7/22

Abstract: The present disclosure is related to a method for energy management for an electric drive system during regenerative braking of a machine. The machine includes an electric drive assembly. The electric drive assembly includes a generator, a motor, a primary direct current bus and a secondary direct current bus having a regenerative brake assembly. The method of energy management includes connecting at least a chopper and a crowbar across the secondary direct current bus. Further, the method includes directing a secondary power stored during regenerative braking, from the primary or secondary or both the buses through the chopper or the crowbar during fault condition.

Abstract translation: 本公开涉及一种用于机器的再生制动期间的电驱动系统的能量管理方法。 该机器包括电驱动组件。 电驱动组件包括发电机，电动机，初级直流母线和具有再生制动组件的二次直流母线。 能量管理方法包括至少连接二次直流总线上的斩波器和撬棒。 此外，该方法包括在故障状态期间，通过斩波器或撬棍引导在再生制动期间存储的次级功率，来自初级或次级或两者的总线。