Invention Grant
- Patent Title: Apparatus and method of estimating inductance of permanent magnet synchronous motor
- Patent Title (中): 估计永磁同步电机电感的装置及方法
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Application No.: US13137309Application Date: 2011-08-04
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Publication No.: US08786230B2Publication Date: 2014-07-22
- Inventor: Dong Hwan Lee , Young Jae Park , Yong Soon Park , Seung Ki Sul
- Applicant: Dong Hwan Lee , Young Jae Park , Yong Soon Park , Seung Ki Sul
- Applicant Address: KR Suwon-si KR Seoul
- Assignee: Samsung Electronics Co., Ltd.,SNU R&DB Foundation
- Current Assignee: Samsung Electronics Co., Ltd.,SNU R&DB Foundation
- Current Assignee Address: KR Suwon-si KR Seoul
- Agency: Staas & Halsey LLP
- Priority: KR10-2011-0009973 20110201
- Main IPC: H02P6/18
- IPC: H02P6/18
Abstract:
A method of estimating inductance of a permanent magnet synchronous motor (PMSM) includes injecting a signal having a frequency differing from an operating frequency of the PMSM into the PMSM during sensorless operation, sensing magnitudes of current responses to the injected signal, and estimating an inductance value at which the magnitude of the sensed current response is minimal to be an actual inductance value of the PMSM, thereby estimating inductance used in the PMSM regardless of position estimation error of the PMSM and thus more accurately and reliably estimating inductance of the PMSM.
Public/Granted literature
- US20120194113A1 Apparatus and method of estimating inductance of permanent magnet synchronous motor Public/Granted day:2012-08-02
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