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전기추진선박의 제어전원 및 보조장치 전원공급용 DC/AC 인버터의 입력전압변동 시험평가 및 분석
송왕근(Wang-Keun Song),최용훈(Yong-Hoon Choi) 대한전기학회 2020 전기학회논문지 Vol.69 No.8
The main power supply of electric vehicles and ships is generally composed of a battery, a generator and a fuel cell, and a propulsion motor and inverter are used as a driving device. In addition to the main power supply for electric power-driven driving, additional auxiliary power supply for control system and auxiliary system is required, and power conversion devices (inverters and converters) are used for this purpose. Power conversion devices for auxiliary power supply receives power from main power supply such as battery, generator and fuel cell and performs the AC or DC power conversion. The voltage variation of main power supply depends on the usage conditions of electric propulsion system. The power conversion devices for auxiliary power supply shall not cause output stop even if the voltage of main power supply suddenly changes to the allowable voltage range. The output of the power conversion devices for auxiliary power supply shall have an operating capability to produce a stable output within the permitted voltage range. This paper deals with the test evaluation and analysis for the input voltage fluctuation of the DC/AC inverter(power conversion devices) in auxiliary power supply of electric ship..
함정추진체계 LBTS를 통한 검증 항목과 방법 및 필요성
백관현(Gwan-Hyun Pack),배영호(Young-Ho Bae),김윤수(Yoon-Soo Kim),유경남(Kyung-Nam Yoo),손홍관(Hong-Kwan Sohn),임근희(Geun-Hie Rim),박상혁(Sang-Hyuk Park),송왕근(Wang-Keun Song) 한국해군과학기술학회 2020 Journal of the KNST Vol.3 No.2
There is no trial ship in naval business due to heavy budget requirement and small quantity of production. First ship is going into military operation after experiencing extensive trial and error, circuit modification, software de-bugging in the process of Test and Evaluation. Advanced countries are adapting LBTS(land-based test site) to reduce risk by testing sub-systems which include several equipment integrated in land. KSS-III submarine has needs for LBTS because most propulsion equipment is newly developed by domestic company. This paper explains effectiveness and major technical issues of KSS-III LBTS.