Strategy Aanalysis For Control And Protect System Of HVDC

In recent years, continuous fog and haze, environmental issues have become the most urgent need to address our current social development and energy policy choice facing the coal-fired thermal power generation is an important factor affecting the haze of the main components of PM2.5 pollution. Governance haze, first to control emissions from coal-fired. Economic development requires electrical energy, but there still is China’s major coal-fired electric power source. With the domestic environment and energy issues outstanding, on our energy grid structure and layout of the new requirements. Let coal in xinjiang, Inner Mongolia and other main coal-producing regions in situ combustion is converted into electrical energy, full development and utilization of sichuan, yunnan and other regions rich in hydropower resources, at the same time increase the wind rich regions such as xinjiang, gansu, qinghai, sufficient sunlight and other regions of green energy sources such as wind power and photovoltaic output, in the form of electric energy to the eastern and central. Would have a large capacity power transmitted over a long distance, you need to rely on safe and reliable transmission system. High-voltage direct current transmission with carrying energy, distance, low loss, reliable operation, quick adjustment, which is more and more widely used.The main contents of research involving the:(1) The object of analysis of DC control and protection system, carries on the statistical analysis to the control objects of protection of HVDC project-from the domestic and foreign development situation.(2) Analysis of engineering application of HVDC control and protection strategy and system, analysis of HVDC control and protection system of tactics application in high voltage DC transmission project in China, the analysis of the characteristics of various kinds of control and protection strategy in practical engineering application.(3)Unified analysis of HVDC transmission system of centralized control and protection strategies, according to the features and characteristics of HVDC transmission projects, research and Analysis on China’s implementation of centralized and unified control and protection strategy.(4) Analysis of communication structure of high voltage DC transmission project control and protection system, by analyzing the structure and function of communication of HVDC control and protection system in the realization of how to improve the reliability of remote communication and remote data transmission.(5) Analysis of the East China regional power grid HVDC control and protection system of strategy, according to the characteristics of the East China regional power grid HVDC system, analysis if the implementation of HVDC control and protection system of unified strategy in East China power grid.Through strategic analysis of HVDC control and protection systems in operation across the country come if HVDC system control and protection system using a unified strategy, operation and maintenance personnel can be reduced to hundreds of thousands of people, equipment and testing instruments can also reduce the cost of reconfigurable 2/3, with high economic benefits, while among the HVDC system with a closer, grid security and stability can be greatly improved.