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Korea Society for Naval Science and Technology - Vol. 6 , No. 4

[ Article ]
Journal of the KNST - Vol. 4, No. 1, pp. 55-60
Abbreviation: KNST
ISSN: 2635-4926 (Print)
Print publication date 31 Mar 2021
Received 28 Jan 2021 Revised 10 Feb 2021 Accepted 27 Feb 2021
DOI: https://doi.org/10.31818/JKNST.2021.03.4.1.55

전압형 PWM Converter가 적용된 전기추진 함정의 고조파 필터 분석 및 LCL 필터 설계
이대한1 ; 박명진2 ; 김소연3, *
1해군 소령/서울대학교 조선해양공학과 박사과정
2해군 중령/방위사업청 체계개발1팀 체계종합담당
3해군 소령/해군사관학교 전기·전자공학과 부교수

Electric Propulsion Ship’s Harmonic Filter Analysis and LCL Filter Design
Dae Han Lee1 ; Myung Jin Park2 ; So Yeon Kim3, *
1Lieutenant commander, ROK Navy/Ph.D candidate, Dept. of Naval Architecture and Ocean Engineering, Seoul National University
2Commander, ROK Navy/KSS-III System Development Team 1, Defense Acquisition Program Administration
3Lieutenant commander, ROK Navy/Associate Professor, Dept. of Electrical Engineering, Republic of Korea Naval Academy
Correspondence to : *So-Yeon Kim Jungwon-ro, Jinhae-gu, Changwon-si, Gyungbuknam-do, 51704, Republic of Korea Tel: +82-55-907-5315 Fax: +82-55-542-0033 E-mail: ksy4rang@navy.mil.kr


© 2021 Korea Society for Naval Science & Technology

초록

본 논문에서는 전압형 PWM converter가 적용된 전기추진 함정의 LCL 필터 설계 방법을 제안한다. 전압형 PWM converter의 경우 PWM 스위칭에 의한 고조파 성분이 발생되기 때문에 고조파 규제를 만족하기 위한 적절한 필터를 설치하게 된다. 특히 스위칭 주파수가 제한되고 한정된 공간 활용 특성을 가지는 대용량 함정 시스템의 경우 고조파 필터의 부피 및 크기 그리고 손실의 최소화가 가지는 의미는 매우 크다. 본 논문에서는 최근 전기추진 함정에 적용된 1MW급 converter의 고조파 필터를 분석하고, 고조파 규제를 만족하는 범위 내에서 손실 및 설치 공간에서 유리한 개선된 LCL 필터를 제안한다.

Abstract

This paper analyzed electric propulsion ship’s harmonic filter and proposed the method of LCL filter design. In case of voltage source PWM converter, it needs harmonic filter to meet the harmonic regulation due to the PWM switching. Especially because of high power system such as naval ship is limited switching frequency, installation space and weight, proper harmonic filter design is important in terms of size and weight. In this paper, analyzed recently applied harmonic filter and proposed smaller and lighter harmonic filter with harmonic regulation.


Keywords: Electric Propulsion Ship, Integrated Power System, LCL Filter
키워드: 전기추진함정, 통합전력시스템, LCL 필터

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