Research And Application Of Key Technologies Of Distributed Photovoltaic Power Station Access In Anyang

China's fossil energy reserves are at a low level compared with the developed countries and developing countries.Coal and oil,natural gas and other important energy sources that affect social and economic development have been an important factor restricting China's entry into moderately developed countries.New energy,especially the development of renewable energy,is the only way to ease energy and optimize energy strategy.So the photovoltaic,wind power,nuclear power and other clean energy development,and a breakthrough in technology,breaking the monopoly of technology,and then to seize the international and domestic market opportunities,which are related to the country's future energy security and economic strategy implementation,which But also with the country's "one way along the" strategy in line.In this paper,distributed photovoltaic power plant access to the distribution network,breaking the original distribution network operation status,trend structure and scheduling mode.Especially in the power quality,safe operation and distribution network planning and so on to bring a series of problems in-depth study.This paper first summarizes the current situation of the development of photovoltaic power generation and the research status of renewable energy power generation planning,briefly outlines the development of PV industry in other countries in the world,and points out the development of distributed PV as the main direction of future PV development,The development status and lighting level of Anyang Power Grid in Anyang and the development status and installed capacity of PV related industries are introduced in detail.The output power characteristics of the photovoltaic power generation system are analyzed,and the form of the access network of the photovoltaic power generation system is analyzed.The influence of the PV access on the distribution network is analyzed,and the influence of the PV access system on the distribution of the photovoltaic power generation system is analyzed.Including power quality,voltage fluctuation,voltage flicker,voltage deviation,relay protection,etc.,for photovoltaic power plant access to large power grids to provide a basis for optimal configuration.For the optimization of PV access network,the contents and methods of the transformation of the distribution network are clearly defined,and the access capacity of the distributed PV in the distribution network is maximized.It has certain guiding significance for the distribution network with distributed PV The Finally,the analysis of Linzhou solar photovoltaic power generation project,the development of reverse power measurement and clearance protection joint cutting device.Effectively connected to the power generation side and the system side,so that both sides can be real-time participation in the optimal operation of power systems to achieve distributed photovoltaic power plant autonomous power supply.Effectively control the reverse power to send,to ensure that 10 kV system local power grid running smoothly at the same time,maximize the consumption of photovoltaic power station.