通过特高压直流实现大型能源基地风、光、火电力大规模高效率安全外送研究  

Efficient and Security Transmission of Wind,Photovoltaic and Thermal Power of Large-scale Energy Resource Bases Through UHVDC Projects

作　　者：刘振亚[1] 张启平[1] 董存[1] 张琳[1] 王智冬[2] 

机构地区：[1]国家电网公司,北京市西城区100031 [2]国网北京经济技术研究院,北京市昌平区102209

出　　处：《中国电机工程学报》2014年第16期2513-2522,共10页Proceedings of the CSEE

摘　　要：化石能源消耗引起的环境问题日益突出,风力发电作为技术最成熟的清洁能源在全球范围内得到迅速的发展和应用。近10年来,我国风电发展迅猛,风电装机已跃居全球第一。目前,风电资源富集的西北、东北和华北地区消纳风电的空间趋于饱和,光伏发电也进入大规模发展阶段,迫切需要跨区外送。文章分析我国风电运行面临的主要问题,对位于我国东北和西北地区的大型能源基地通过特高压直流工程实现风、光、火电力大规模、高效率、安全外送的可行性进行系统的分析研究。提出基于年度输电量和典型风、光发电曲线的配套电源装机容量优化计算方法和调度生产模拟方法及其安全经济运行的必要条件。并结合新疆哈密至河南郑州特高压直流工程进行分析计算,优化配套的装机容量,提出重大电网安全技术措施。研究结果表明,在保障电力系统安全稳定的基础上,通过优化风、光、火电装机容量可以最大限度地减少弃风、弃光容量,从而实现我国大型能源基地及其风电、光伏等清洁能源的集约高效开发和利用。对优化调整我国电源结构、加快治理大气污染、实现节能减排目标具有重要意义。Since the environment problem caused by fossil fuel consumption is intensified, wind power as the most technically mature clean energy in the world has been developed rapidly. In the last decade, wind power made significant progress in China. At present, accommodation capability of wind power in Northwest, Northeast and North China tends to be saturated. With the planned integration of large-scale photovoltaic power, it is urgent to transmit redundant renewable power to loads of other regions. The main problem of wind power operation was analyzed in this paper. The feasibility of transmitting large-scale renewable power located in Northeast and Northwest to North, East and Central China grid through ultra high voltage direct current （UHVDC） projects was systematically researched. The practical calculation method of matched power capacity and the scheduling production simulation method were presented, based on transmission capacity, typical wind output curves and PV curves. The security and stability calculation process is concluded. The proposed method was proved to be effective by simulating project cases. The study results show that curtailment capacity of wind and PV power will be minimized by optimizing the proportion of wind, PV and thermal power on the basis of power system security and stability. And renewable energy will be developed effectively, which is of obvious significance to optimizing structure of power source, improving air quality and achieving the goal of energy conservation and emission reduction.

关 键 词：风力发电 光伏发电 特高压直流 打捆输电 

分 类 号：TM614[电气工程—电力系统及自动化]