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백승택,한병문 명지대학교 대학원 1999 대학원논문집 Vol.3 No.-
This paper proposes a new reactive-power compensator composed of a thyristor current-source inverter. The compensator consists of a 6-pulse thyristor bridge, de reactor, and a commutation circuit. The commutation circuit offers the thyristor bridge to have PWM operation with minimal switching losses. The operation of proposed system was analyzed by computer simulations with EMTP and experimental works with hardware scaled-model. The proposed system would have low cost and easy expansion of operation voltage due to using the conventional thyristors.
HVDC Thyristor Valve 국산화 개발 현황
백승택(白承澤),정용호(鄭容昊),이덕진(李德振) 전력전자학회 2012 전력전자학회지 Vol.17 No.2
LS산전은 2009년 HVDC 사업을 착수한 이래 변환소 기자재 비용의 20% 이상을 차지하는 변환용 싸이리스터 밸브 국산화를 위해 노력해 왔다. LS 산전은 지난해 12월에 단위 모듈 DC 50㎸급 밸브 모듈을 개발하였고, 2012년 3월에 최종 국산화에 성공하였다. 이번에 개발된 HVDC Valve는 ±250㎸ / 200㎿ HVDC 시스템까지 적용이 가능한 용량이며, 2010년부터 한국전력공사와 협동연구로 진행하고 있는 HVDC 제주 실증단지에 적용하여 실증 운전을 통해 검증할 예정이다. LS산전의 HVDC 싸이리스터 밸브에 적용된 전력 전자기술 개발 현황을 소개하고자 한다.
펄스다중화 보조회로를 이용한 36-펄스 Back-to-Back 전압원 컨버터의 직류송전 적용연구
白承澤(Seung-Taek Baek),崔俊英(Jun-Young Choi),韓炳文(Byung-Moon Han) 대한전기학회 2006 전기학회논문지A Vol.55 No.3
This paper proposes a 36-pulse back-to-back voltage source converter using four sets of 12-pulse bridges with pulse-interleaving auxiliary circuit. The proposed back-to-beck voltage source converter has an independent control capability of active power and reactive power at the ac connection point. The principle of increasing the number of pulses was analyzed using theoretical approach. The operational feasibility of proposed system was verified through computer simulations with PSCAD/EMTDC software. The proposed back-to-hack converter can be widely used for the HVDC and FACTS devices.
백승택(Seung-taek Baek),배병열(Byung-yeol Bae),이진희(Jin-hee Lee),신현진(Hyun-jin Shin),서인영(In-young Suh) 전력전자학회 2009 전력전자학술대회 논문집 Vol.2009 No.1
This paper presents the design, development and performance of a power conditioning system (PCS) for application to a Molten Carbonate Fuel Cell (MCFC) for high power generation system. A DSP controller was used to control the DC-DC converter and DC-AC inverter operation for grid connection and power injection to the grid. The controller must also supervise the total PCS operation while communicating with the fuel cell system controller. A control method for parallel operation of DC-DC converters was implemented and verified respectively. Experimental performances are compared to minimum target requirements of the PCS for MCFC respectively.