- 专利标题: Suppressing resonance in ultra long motor cable
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申请号: US16033321申请日: 2018-07-12
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公开(公告)号: US10680547B2公开(公告)日: 2020-06-09
- 发明人: Yuan Xiao , Ye Zhang , Ehsan Al-Nabi , Richard L. Piekarz
- 申请人: Rockwell Automation Technologies, Inc.
- 申请人地址: US OH Mayfield Heights
- 专利权人: Rockwell Automation Technologies, Inc.
- 当前专利权人: Rockwell Automation Technologies, Inc.
- 当前专利权人地址: US OH Mayfield Heights
- 代理机构: Fay Sharpe LLP
- 主分类号: H02P27/08
- IPC分类号: H02P27/08 ; H02P29/50 ; H02M1/44 ; H03H7/06 ; H02M5/458

摘要:
The disclosed examples provide an easy and low-loss solution to reduce voltage stress on motor and cable in inverter-fed motor systems by suppressing resonances on the motor cable with apparatus coupled between the inverter output and the motor cable. Disclosed examples include various methods to mitigate voltage stress on both motor and cable, including an output filter circuit with a cable side parallel RL circuit between an inverter output and a motor cable, and an inverter to provide an inverter output signal to the output filter circuit to drive a load through the motor cable, where the cable side parallel RL circuit includes a resistor coupled in series between the inverter output and the motor cable, and an inductor connected in parallel with the resistor.
公开/授权文献
- US20200021234A1 SUPPRESSING RESONANCE IN ULTRA LONG MOTOR CABLE 公开/授权日:2020-01-16
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