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A Study on the Intelligent Electronic Device for Non-Linear Loads  

박종찬 (오산대학 전기시스템제어과)
김병진 (현대중공업 기전연구소)
김수곤 (숭실대학교 전기공학과 대학원)
전희종 (숭실대학교 전기공학과)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.8, no.5, 2003 , pp. 381-388 More about this Journal
Abstract
In this paper, the IED(Intelligent Electronic Devices) with the consideration of harmonic problems is discussed, With significant development of power electronics technology, the proliferation of a nonlinear load has more deteriorated power quality, As continuous harmonic current makes for a shortening lifetime, overheat and abnormal operation, it should be considered to improve these problems. However, the conventional digital protective relay which eliminates harmonic elements with orthogonal filter has a defect on actually implementation. The prototype IED is constructed with Digital Signal Processor(TMS320C32) and Complex Programmable Logic Device. According to the experiment and simulation results, it is proved that the proposed system has good performance of measuring harmonic factors and protecting electrical equipment.
Keywords
IED(Intelligent Electronic Device);
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