Open Access System for Information Sharing

Login Library

 

Thesis
Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

매입형 영구자석 전동기의 빠른 전류 응답성을 위한 동적 과변조 기법

Title
매입형 영구자석 전동기의 빠른 전류 응답성을 위한 동적 과변조 기법
Authors
김준우
Date Issued
2012
Publisher
포항공과대학교
Abstract
PI current controllers constrain the voltage command in a linear region for stable operation. However, a sudden current command let the voltage command be out of the linear region. In this situation, an inverter cannot produce enough voltage so that current control is seriously unstable, thus, the overmodulaton method is necessary. The overmodulation method modifies the voltage command on the hexagon shaped voltage limit. Even though the overmodulation method is used, if the voltage command is out of the limit for a long time, errors are accumulated in the current controllers so that current control becomes unstable. Therefore, the overmodulation method for fast current response is essential, but most conventional overmodulation methods do not consider fast current response. In this paper, new dynamic overmodulation for fast current response using unbalanced voltage. The method is considered on the rotating frame, and q-axis is reduced in priority, which is effective for fast current response. The proposed method is verified through simulations and experimental results.
URI
http://postech.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000001218445
http://oasis.postech.ac.kr/handle/2014.oak/1479
Article Type
Thesis
Files in This Item:
There are no files associated with this item.

qr_code

  • mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Views & Downloads

Browse