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이건식(Lee Gun-Sik),정건채(Chong Geon-Chai) 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2
The aim of this study is to analysis types and spatial characteristics of housing in Munhwa-Maul, and provide a basic data of housing design in Munhwa-Maul. The analysis is divided into two main categories; classification of types, drawing a plan of housing in Munhwa-Maul. Through this study and the results of survey are as follows; 1. Munhwa-Maul is role to establish people settled village in rural area. 2. The types of house are several in Munhwa-Maul. Masonry construction housing has about 80%. But recently there are new types of housing. So, Munhwa-Maul has a new landscape of village. 3. Form of dwelling housing is mostly flat-roof type. But it changes to gable-roof type by resident. 4. The space of housing is by basic unit-living room, kitchen, restroom, three bedroom, entrance and utility room. But restroom of master bedroom is optional. So we can divide into living room style housing and hall style housing.
모동영(Dong-Yeong Mo),이상철(Sang-Cheol Lee),최창영,조춘호(Chun-ho Cho),이건식(Gun-Sik Lee),김태웅(Tae-Woong Kim),박귀근(Gwi-Geun Park),최재호(Jae-Ho Choi) 전력전자학회 2010 전력전자학술대회 논문집 Vol.2010 No.7
매트릭스컨버터는 부하이외에 시스템의 에너지 저장소자가 없다. 이에 시스템의 스위칭에 의한 고조파 잡음도 계통으로 직접적으로 유입되기 쉬운 시스템이기에 이에 적합한 입력필터 설계가 필요하다. 본 논문에서는 기존에 제시되어 있는 LC필터 및 LCL필터에 대하여 고찰한 후, 매트릭스컨버터에 적합한 필터 설계기법 및 수동댐핑저항에 대한 손쉬운 선정기법을 제안하였다. 그리고 제안한 기법에 대한 타당성을 시뮬레이션에 의해 검증한다.
조춘호(Choon-Ho Cho),모동영(Dong-Yeong Mo),이상철(Sang-Chul Lee),최창영(Chang-Young Choi),이건식(Gun-Sik Lee),김태웅(Tae-Woong Kim),박귀근(Gwi-Geun Park) 전력전자학회 2010 전력전자학술대회 논문집 Vol.2010 No.7
Matrix converter is direct power conversion system. Matrix converter has many merits that possible bidirectional power flow, input power factor own control and system without DC-link. But matrix converter has some demerits that need many switching devices and switching loss. This paper suggest optimal matrix converter control scheme for improvement for switching loss part. Proposed control scheme verified that 10% improvement in efficiency, input current's harmonic loss and output voltage's EMI improvement.
조춘호(Choon-Ho Cho),모동영(Dong-Yeong Mo),이상철(Sang-Chul Lee),최창영(Chang-Young Choi),이건식(Gun-Sik Lee),김태웅(Tae-Woong Kim),박귀근(Gwi-Geun Park) 전력전자학회 2010 전력전자학술대회 논문집 Vol.2010 No.7
Two-Stage Direct Power Converter(TSDPC) has many merits that possible bidirectional power flow, input power factor own control and system using imaginary DC-link. But TSDPC has some demerits that need many switching devices and switching loss. This paper suggest optimal TSDPC control scheme for improvement for switching loss part by changing the space vector approval times. This paper is verified that 9% improvement in switching efficiency and proposed system has lower harmonic of input currents and output voltage.