我国区域电网未来主网架结构特点与发展趋势

Characteristics and development tendency of main framework in the future for regional power grid in China

在这一轮电网发展中,电网规划人员必须树立全国联网规划指导区域电网规划、区域电网规划指导省级电网规划的观念,解决电网发展满足建立竞争性电力市场的需要,在电力供需严重不平衡的情况下做好电网规划等问题。通过分析各区域电网主网架发展思路、结构特点及发展趋势,认识到:区域电网的发展首先要适应全国联网战略,跨区电力流、跨区联网模式对区域电网主网架发展起到引导作用,其次对区域内主网架发展进行多方案论证,根据推荐方案对主网架的发展方向、关键受端环网和输电通道作了概述,最后从技术层面上提出电网发展需要解决的问题。

The background of regional power grid planning and its important basic condition for the Northeast, North China, East China, and Northwest regional power grid in China were introduced. This power grid planning must face to the external environment including how to insist the unified and scientific planning, and coordinative development for power grid and power source, must set up the idea of regional power grid planning guided by nation-wide power grid interconnection planning, and the provincial-level power grid planning guided by regional power grid planning. The development of power grid is how to satisfy the needs of establishing competitive power market, and how to make good power grid planning under the condition of the serious disequilibrium of power supply and demand. The way of development, characteristics of structure and its development tendency of main framework for each regional power grid were analyzed. The development of regional power grid should firstly meet the guidance of nation-wide power grid interconnection strategy, inter-regional power flow and inter-regional interconnection mode. Secondly, the verification of the schemes for the development of regional main framework was carried out, and the development tendency of main framework, the key ring power grid of receiving end and transmission channel were described according to the recommended scheme. Some problems needed to solve for power grid development were presented from technical points of view.