Transformation Efficiency of Grid Interconnection by Photovoltaic Power Generation

M. D. Nazmul¹, and Mohammad Asaduzzaman²

1. Graduate School of Engineering and Science, University of the Ryukyus, Japan

2. Department of Civil Engineering & Architecture, University of the Ryukyus, Japan

Abstract: Using photovoltaic power generation has become common because of the North FIT system, and at present, there is a possibility that it may hinder the stability of the power supply, and some electric power companies suspend contracts. Installation of solar cell module, which is the central equipment of photovoltaic power generation, and the power controller for connecting it to the grid based on the performance has provided by the manufacturer. But in reality, it is subject to drastic fluctuations in solar radiation. It does not reveal the following ability of solar cell modules and power controllers. In this study, we consider the fluctuation characteristics of the solar power generated by the grid in response to the sudden fluctuations in the sum of solar radiation and consider the stable supply of renewable energy.

Key words: transformation efficiency, photovoltaic power generation, grid interconnection