Invention Grant
- Patent Title: V/F control method for suppressing current oscillation of induction motor
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Application No.: US15021335Application Date: 2014-05-30
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Publication No.: US10135378B2Publication Date: 2018-11-20
- Inventor: Kevin Lee , Dawei Li , Anbo Yu
- Applicant: Eaton Corporation
- Applicant Address: IE Dublin
- Assignee: Eaton Intelligent Power Limited
- Current Assignee: Eaton Intelligent Power Limited
- Current Assignee Address: IE Dublin
- Agency: Ziolkowski Patent Solutions Group, SC
- Priority: CN201310421736 20130916
- International Application: PCT/CN2014/078882 WO 20140530
- International Announcement: WO2015/035801 WO 20150319
- Main IPC: H02P25/22
- IPC: H02P25/22 ; H02P6/16 ; H02P9/10 ; H02P27/04 ; H02P21/05 ; H02P23/04

Abstract:
The present invention provides a V/F control method for an induction motor comprising: extracting a reactive current and an active current and performing a differential calculation on them respectively to obtain a differential of the reactive current and a differential of the active current; multiplying the differential of the reactive current and the differential of the active current by a first coefficient and a second coefficient respectively; obtaining the sum of the result of multiplying the differential of the reactive current by the first coefficient and the result of multiplying the differential of the active current by the second coefficient; applying low-pass filtering on the sum to obtain a compensation; and superposing the compensation onto an original given angular frequency to perform V/F control.
Public/Granted literature
- US20160226420A1 V/F CONTROL METHOD FOR SUPPRESSING CURRENT OSCILLATION OF INDUCTION MOTOR Public/Granted day:2016-08-04
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