최적의 파라미터 산출을 위한 PV시스템의 성능평가 분석

Abstract

As environmental focus from an United Nations Framework Convention on Climate Change come to the worldwide, Photovoltaic system is in the spotlight as technology of environmental friendly energy. Conventional methods of generating electricity (e.g. burning coal and other fossil fuels) can produce pollutants such as carbon dioxide, the main gas responsible for global warming. Furthermore, fossil fuels and uranium are non-renewable resources. The only resource needed to power a solar cell is sunlight. Solar energy is clean, quiet, abundant and a renewable energy source, which produces no pollution to the environment. With the growing concern over green-house gas emissions and other environmental issues, renewable energy sources are being increasingly adapted in many applications. Utility interconnected photovoltaic systems is one of the most promising applications of photovoltaic systems. These systems are employed in applications where utility service is already available. In this case, there is no need for battery storage because utility power may be used to supplement photovoltaic systems when the load exceeds available PV generation. The load receives electricity from both the photovoltaic array and the utility inter-tied. In this paper, Principle and operating characteristic of Utility Interconnected Photovoltaic System is presented. For the purpose of optimal utility inter-tied photovoltaic system design and installation. The Solar Energy demonstration research complex has been monitoring PV system performance for the last 9 months. It is that demonstrate throughout the installed 6 PV system respectively, 3kW utility interconnected residential system. This experience result has shown that data collection requirements can be presented Solar cell array characteristic, PCS characteristic, hole system efficiency, difference of quantity of electric power generation in regard of system performance, ratio of system utilization, ratio of capacity and driving characteristic.