Invention Grant
- Patent Title: Device and method of stopping induction motor
- Patent Title (中): 停止感应电机的装置及方法
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Application No.: US13412524Application Date: 2012-03-05
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Publication No.: US08664898B2Publication Date: 2014-03-04
- Inventor: Kwang Yeon Kim
- Applicant: Kwang Yeon Kim
- Applicant Address: KR Anyang-Si, Gyeonggi-Do
- Assignee: LSIS Co., Ltd.
- Current Assignee: LSIS Co., Ltd.
- Current Assignee Address: KR Anyang-Si, Gyeonggi-Do
- Agency: Lee, Hong, Degerman, Kang & Waimey
- Priority: KR10-2011-0020662 20110308
- Main IPC: H02P21/00
- IPC: H02P21/00

Abstract:
Provided are a device and method of stopping an induction motor. The includes: a frequency commanding unit for generating an operating frequency corresponding to a rotational speed command of the induction motor; a q-axis and d-axis V/F converter for outputting a first q-axis voltage (Vq1) proportional to the generated operating frequency and a first d-axis voltage (Vd1) proportional to a 0 frequency; a q-axis PI current controller for outputting a second q-axis voltage (Vq2) for stopping the induction motor when the operating frequency reaches a stopping frequency; a d-axis PI current controller for outputting a second d-axis voltage (Vd2) for stopping the induction motor when the operating frequency reaches the stopping frequency; and a selection unit for selecting and outputting the first q-axis and d-axis voltages (Vq1 and Vd1) or the second q-axis and d-axis voltages (Vq2 and Vd2) according to the operating frequency generated by the frequency commanding unit.
Public/Granted literature
- US20120229058A1 DEVICE AND METHOD OF STOPPING INDUCTION MOTOR Public/Granted day:2012-09-13
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