메뉴 건너뛰기
소속 기관 / 학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
고객센터 ENG
주제분류

논문 기본 정보

저자정보
(Myongji University) (Myongji University)
저널정보
대한전기학회 전기학회논문지 전기학회논문지 제74권 제5호
오류 신고하기

피인용 0

검색

    초록·키워드

    In power systems, current transformers (CTs) step down high currents, enabling accurate measurement and protection critical for system stability. Protection CTs require high accuracy to avoid relay malfunctions caused by distorted currents. While iron cores enhance flux linkage, their nonlinear hysteresis can introduce measurement errors. This paper proposes a CT simulation model for PSCAD/EMTDC, employing RMS-based excitation curve data provided by manufacturers. The model utilizes the Dommel algorithm for nodal analysis to simulate nonlinear core behavior and core losses without extensive experimental data. Based on a secondary equivalent circuit, it includes magnetizing inductance, hysteresis losses, secondary winding impedance, and burden impedance. Manufacturer‘s excitation curves are incorporated directly using 10 data points, with ‘Loop-width(%)’ quantifying loss currents and simplifying data processing. It’s accuracy was validated via open-circuit tests, capturing saturation characteristics, and verified through comparisons with built-in 'Saturable Reactor' and 'MOV' components, demonstrating the precision of the proposed method in time-domain simulations.

    최근 본 자료 전체보기

      UCI(KEPA) : I410-151-25-02-093097378