Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Proceedings of the Csee》 2003-12
Add to Favorite Get Latest Update

DETECTION FOR REACTIVE AND HARMONICS CURRENTS OF UNBALANCED THREE-PHASE SYSTEMS BASED ON SYNCHRONOUS REFERENCE FRAME TRANSFORMATION

SUN Chi, WEI Guang-hui, BI Zeng-jun (Ordnance Engineering College, Shijiazhuang 050003, China)  
In this paper, limitations of some existing detecting methods for reactive and harmonics currents in the case of unbalanced or distorted three-phase voltages is discussed, then a novel detecting method is presented based on synchronous reference frame transformation. The proposed method can be used to detect positive fundamental active currents and the sum of positive fundamental reactive currents, unbalanced components and harmonics, thus can be adopted to compensate reactive power, unbalanced currents and harmonics for three-phase three-wire or four-wire systems directly. In the case of unbalanced and distorted three-phase voltages, the presented method does not need band-pass filter and phase-locked loop for three-phase voltages; thereby the associated detection error can be avoided. The theoretical analysis and simulation verify the feasibility and correctness.
【Fund】: 国家自然科学基金(50237040)~~
【CateGory Index】: TM933.1
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved