±800 kV雁淮特高压直流输电能力分析研究

Analysis and Research on Transmission Capacity of ±800 kV Yanhuai UHVDC

随着火电机组和新能源发电机组的大规模投产,山西电网对晋电外送能力要求越来越高,建设特高压工程是提高电网输送能力、资源优化配置能力和抵御事故能力的最好举措。为深入研究±800 kV雁淮特高压直流的送电能力,分析了影响直流送电能力的制约因素,并详细仿真了在各种制约因素下雁淮特高压直流的不同送电能力,从而得出雁淮直流的最大送电能力。进一步研究了雁淮直流近区不同检修方式下雁淮直流送电能力,为山西电网的安全稳定运行提供理论基础和技术支撑。

With the large-scale commissioning of thermal power generating units and new energy generating units, the requirement of power transmission capacity of Shanxi power grid is increasingly higher. The construction of UHV project is the best measure to improve the transmission capacity of power grid, optimize the allocation of resources and resist accidents. In order to deeply study the power transmission capacity of ±800 kV Yanhuai UHVDC, the factors affecting the power transmission capacities are analyzed, and the power transmission capabilities of Yanhuai UHVDC under various constraints are simulated in detail, so as to obtain the maximum power transmission capacity of Yanhuai UHVDC. Furthermore, the power transmission capacities of Yanhuai UHVDC near Yanhuai UHVDC area under different maintenance modes are further studied, which provides theoretical basis and technical support for the safe and stable operation of Shanxi power grid.