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충방전 제어기를 이용한 독립형 태양광 발전시스템의 설계
김홍성(H.S.Kim),유권종(G.J.Yu),송진수(J.S.Song),이병구(B.K.Lee),정영석(Y.S.Jeong),강기환(K.H.Kang),최규하(G.H.Choe) 전력전자학회 1998 전력전자학술대회 논문집 Vol.- No.-
This paper deals with stand-alone Photovoltaic system(SPVS) with charge and discharge controller Main power source of SPVS are generally solar cell and battery. Therefore SPVS can be classified into variable types in accordance with connection type between battery and solar cell. Mainly used one of them is direct connection type which has advantages such as simple structure and simple controller However most big drawback of this system is energy loss by voltage disharmony between solar cell and battery. Therefore SPVS with charge and discharge controller which can operate solar cell at maximum power point is designed and ,analyzed by simulation in this paper.<br/> <br/>
Computer Simulation을 통한 MPPT제어 알고리즘 고찰
김기현(K.H. Kim),유권종(Y.S. Kim),정영석(G.W. Yu),김영석(Y.S. Jung) 전력전자학회 2000 전력전자학술대회 논문집 Vol.2000 No.11
As maximum power point tracking(MPPT) of photovoltaic(PV) power generation system changes with atmospheric condition(e.g. solar insolation, temperature and load condition), an important consideration m the design of efficient PV system IS to track the maximum power operating point(MPOP) correctly Therefore, this paper show the simulation result that always operated at MPT. The work was carried out by constant-voltage control, P&O, IncCond algorithm. This algorithm has successfully tracked the MPOP, even in case of rapidly change atmospheric conditions
커폐시턴스 내부저항을 고려한 태양광용 Boost 컨버터에 관한 MPPT 제어 알고리듬 고찰
최주엽(J. Y. Choi),유권종(G. J. Yu),이동기(D. G. Lee),이기옥(K. O. Lee),정영석(Y. S. Jung),김기현(K. H. Kim) 전력전자학회 2001 전력전자학술대회 논문집 Vol.2001 No.-
Photovoltaic systems normally use a maximum power point tracking (MPPT) technique to continuously deliver the highest possible power to the load when variations in the insolation and temperature occur A simple method of tracking the maximum power points (MPPs) and forcing the boost converter system to operate close to these points is presented through denying small-signal model and transfer function of boost converter This paper aims at modeling boost converter including equivalent series resistance of imput reservoir capacitor by state-space-averaging method. In the future, properly designed controller for compensation will be constructed for maximum photovoltaic power tracking control.<br/> <br/>
인터넷 웹 기반 환경에서의 태양광용 인버터 원격제어시스템 개발에 관한 고찰
최주엽(J. Y. Choi),조경신(K. S. Cho),최익(I. Choy),유권종(G. J. Yu),정영석(Y. S. Jung),김기현(K. H. Kim) 전력전자학회 2001 전력전자학술대회 논문집 Vol.2001 No.-
This paper aims at developing remote control system to control and monitor distributed various devices such as photovoltaic inverter system through internet. TCP/IP(Transmission Control Protocol/Internet Protocol) and photovoltaic inverter system operated in a row are adopted for network management protocol and applied device, respectively. For controlling and monitoring distributed devices in real-time, java-environment software is constructed. Also, Hello Device, general-use interface controller between network device and applied device is proposed. Finally, serial communication such as RS-232C is used between controller and applied device.<br/> <br/>