Study On Technologies Of Photovoltaic Power Plant Conneting To The Grid

As a readily, available, harmless and endless energy, solar energy should be the first convenience choice of the new energy by human. In recent years, around the whole word, governments increased the support on the technical and research of photovoltaic power and its industry. Now, the photovoltaic industry has become one of the most rapid development of emerging technologies industry. After2000-year, the new grid-connected photovoltaic power plant capacity is growing. The worldwide trend of photovoltaic power plants is increasing direction of the installed capacity. Around the world there are more and more Large-scale grid-connected photovoltaic power plant. In this paper, there are research and analysis about the technology and characteristics of the photovoltaic power plants connected to the grid, and also do analysis and comparison of the way connected to the grid. The main content of this article include:1. Intoduces the structure and characteristics of the photovoltaic power station, and introduces the work principle of solar cells and the classification of photovoltaic grid power system;2. Introduces the key technology of photovoltaic grid system, including the inverter control strategy, the maximum power point tracking strategy and island detecting technology. And in PSCAD simulation platform on all the key techniques of the simulation waveform analysis;3. Comparing the grid photovoltaic power grid access of the way, and expounds the at present out country grid photovoltaic power station access electric network standards;4. Research into the grid photovoltaic power station to influence and puts forward relative power side can take measures.