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1. 发明申请

US20020185989A1 Electric motor control having DC-DC converter and method of using same 失效
标题翻译：具有DC-DC转换器的电动机控制器及其使用方法
公开(公告)号：US20020185989A1
公开(公告)日：2002-12-12
申请号：US09877634
申请日：2001-06-08
申请人： General Motors Corporation
发明人： Khwaja M. Rahman , Steven E. Schulz
IPC分类号： H02P001/46 , H02P003/18 , H02P005/28 , H02P007/36
CPC分类号： H02P25/098 , H02P25/092
摘要： A controller for use in a switched reluctance (SR) motor drive is provided. The controller includes a DC-DC converter coupled to an inverter. The DC-DC converter can be a buck converter, a boost converter, or a buck-boost converter. The control parameters to the DC-DC converter can be optimal. In addition, the bus voltage of the motor drive can be reduced to a level such that the motor operates in single pulse mode. A capacitor can be connected in parallel across the outputs of the DC-DC converter supplying the inverter. Using the DC-DC converter to indirectly profile the phase current can reduce motor torque ripple.
摘要翻译：提供了一种用于开关磁阻（SR）电机驱动器的控制器。控制器包括耦合到逆变器的DC-DC转换器。 DC-DC转换器可以是降压转换器，升压转换器或降压 - 升压转换器。 DC-DC转换器的控制参数可以是最佳的。此外，电机驱动器的总线电压可以降低到使电机工作在单脉冲模式的水平。电容器可以在提供逆变器的DC-DC转换器的输出端并联连接。使用DC-DC转换器间接分配相电流可以减少电机转矩波动。

2. 发明申请

US20020153858A1 METHOD AND SYSTEM OF REDUCING TURN-OFF LOSS AND NOISE IN A SWITCHED RELUCTANCE MOTOR DRIVE 失效
标题翻译：一种切换式电动机驱动装置中减少失效和噪音的方法和系统
公开(公告)号：US20020153858A1
公开(公告)日：2002-10-24
申请号：US09804557
申请日：2001-03-12
申请人： General Motors Corporation
发明人： Steven E. Schulz , Khwaja M. Rahman
IPC分类号： H02P001/46
CPC分类号： H02P25/092
摘要： An inverter for use in a switched reluctance (SR) motor drive is provided. The inverter comprises a first and second transistor for selectively providing current to an SR motor winding. A resonant-type snubber circuit is connected to the transistors to reduce turn-off loss. The snubber circuit includes a pair of diodes, a capacitor, and an inductor. The snubber circuit is reset during switch-on time of the transistors. At transistor turn-off time, the snubber circuit uses the capacitor to effectively limit the rate of change of voltage across the transistors. This allows the transistors to turn off with lower losses, and can also reduce the acoustical noise generated by the motor drive.
摘要翻译：提供一种用于开关磁阻（SR）电机驱动器的逆变器。逆变器包括用于选择性地向SR电动机绕组提供电流的第一和第二晶体管。谐振型缓冲电路连接到晶体管以减少关断损耗。缓冲电路包括一对二极管，电容器和电感器。缓冲电路在晶体管的接通时间被复位。在晶体管截止时间，缓冲电路使用电容器来有效地限制晶体管两端的电压变化率。这允许晶体管以较低的损耗关断，并且还可以降低由电动机驱动产生的声音噪声。

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