Invention Grant
- Patent Title: Method for reducing noise of a switched reluctance motor based on adjusting a PWM carrier frequency
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Application No.: US16958868Application Date: 2018-12-29
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Publication No.: US11336217B2Publication Date: 2022-05-17
- Inventor: Rui Zhong , Mingshu Zhang , Sen Zhang , Jinyu Xiao , Wei Su , Weifeng Sun , Longxing Shi
- Applicant: CSMC TECHNOLOGIES FAB2 CO., LTD. , SOUTHEAST UNIVERSITY
- Applicant Address: CN Wuxi New District; CN Xuanwu District Nanjing
- Assignee: CSMC TECHNOLOGIES FAB2 CO., LTD.,SOUTHEAST UNIVERSITY
- Current Assignee: CSMC TECHNOLOGIES FAB2 CO., LTD.,SOUTHEAST UNIVERSITY
- Current Assignee Address: CN Wuxi New District; CN Xuanwu District Nanjing
- Agency: Kagan Binder, PLLC
- Priority: CN201711476370.2 20171229
- International Application: PCT/CN2018/125523 WO 20181229
- International Announcement: WO2019/129273 WO 20190704
- Main IPC: H02P25/08
- IPC: H02P25/08 ; H02P23/04
Abstract:
A method and an apparatus for reducing noise of a switched reluctance motor, includes: supplying a PWM signal as a driving signal to a driving circuit of a switched reluctance motor; and varying a carrier frequency of the PWM signal as an operation period of the switched reluctance motor varies; if the switched reluctance motor changes phase, determining that the operation period of the switched reluctance motor varies.
Public/Granted literature
- US20200343845A1 METHOD FOR REDUCING NOISE OF A SWITCHED RELUCTANCE MOTOR BASED ON ADJUSTING A PWM CARRIER FREQUENCY Public/Granted day:2020-10-29
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