发明名称 |
METHOD AND SYSTEM FOR BRAKING AN AC MOTOR |
摘要 |
A system for braking a motor. The system includes at least one resistor and a contactor connected to the at least one resistor and a motor. The system further includes a variable frequency drive electrically connected to the motor, wherein the variable frequency drive comprises a controller operably connected to the contactor, wherein at least a portion of the contactor closes connecting the at least one resistor to the motor in response to a command from the controller. The variable frequency drive is configured such that motor flux levels may be maintained at a relatively high level as motor torque current is reduced, resulting in a consistently high motor flux level as the motor speed decreases. |
申请公布号 |
EP2243214(A1) |
申请公布日期 |
2010.10.27 |
申请号 |
EP20090712911 |
申请日期 |
2009.02.23 |
申请人 |
SIEMENS INDUSTRY, INC. |
发明人 |
OSMAN, RICHARD H.;RASTOGI, MUKUL |
分类号 |
H02P3/22;H02P21/14;H02P21/36 |
主分类号 |
H02P3/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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