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류승표(S.P. Ryu),전세봉(S.B. Jeon),민병권(B.G. Min),서광덕(K.D. Seo) 전력전자학회 2003 전력전자학술대회 논문집 Vol.2003 No.7(2)
Recently, because of the depletion of fossil<br/> fuels and the environmental pollution by using fossil fuels and atomic power generation, the interests concerning of new and renewable energy resources are rising rapidly.<br/> In this study, the 3kWp photovoltaic power generation system is realized to verify the performance of the PCS developed<br/> The photovoltaic array used in this system IS composed of 60 modules of 50Wp capacity. The developed system is tested and the experimental results show the excellent electrical characteristics
이현두(H. D. Lee),전세봉(S. B. Jeon),이수병(S. B. Lee),김종규(J. G. Kim),류승표(S. P. Ryu) 전력전자학회 2006 전력전자학술대회 논문집 Vol.- No.-
This paper describes the information transmission method using communication networks between the devices in Photovoltaic Power System, and also represents the test result which carried out in the field. In this test, transmission signal waveform, polling time, response time and request/response frame were measured between the devices. The measured results show the excellent transmission characteristics.
박영호(Y. H. Park),전세봉(S. B. Jeon),김종규(J. K. Kim),이현두(H. D. Lee),우명호(M. H. Woo),류승표(S. P. Ryu) 전력전자학회 2011 전력전자학술대회 논문집 Vol.2011 No.7
The voltage fluctuation is one of grid instability problems caused by a high penetration level of decentralized generating units such as photovoltaic (PV) systems. The reverse load flow by PV systems may lead to a grid voltage fluctuation and increases a risk of overvoltage in times of high solar irradiation. The grid voltage regulation of a PV power conditioning system (PCS) using reactive power is presented in this paper. The influence of reactive power supply by the PV system on the grid voltage is explained and the regulation capability of PCS is discussed. The performance and feasibility of presented method is verified by both simulation and experimental results. The results show that the concept described in this paper can be utilized to keep the grid voltage in its nominal range.