市场化环境下的电力平衡及变电容量需求计算方法研究  

Research on the calculation method of power balance and substation capacity demand in market oriented environment

作　　者：舒舟 杜佩仁[2] 张杰 王小磊 SHU Zhou;DU Peiren;ZHANG jie;WANG Xiaolei(Shenzhen Power Grid Co. , Ltd. , Shenzhen 518001Guangdong, China;Zhejiang University, Hangzhou 310027 Zhejiang, China;Hangzhou Hongsheng Electric Power Design Co. Ltd, Hangzhou 311121 Zhejiang, China)

机构地区：[1]深圳供电局有限公司,广东深圳518001 [2]浙江大学,浙江杭州310027 [3]杭州鸿晟电力设计咨询有限公司,浙江杭州311121

出　　处：《电力大数据》2018年第3期15-21,共7页Power Systems and Big Data

摘　　要：持续、快速、不均衡的电力需求增长以及可再生能源的迅猛发展,促使中国能源和电力发展出现新趋势和新变化。为了使电力平衡目标更加多元化,以及解决现行电力平衡及变电容量需求计算方法存在的不足之处,本文提出了在市场环境下的电力平衡及变电容量需求计算方法。该方法统筹考虑配电网资源优化配置水平,同时考虑了电力平衡的充裕度、节能减排、新能源消纳以及中压网架建设的整体经济效益和社会效益,并解决了现行计算方法存在的供电范围不能完全区分、110 k V与35 k V电网的融合程度高、容载比选取方法不完全适用等不足之处,增强了中压配电网互联互供能力,以及为各类发电厂建设规模、装机容量水平、变电站站点落地提供指导。并通过文末的算例分析充分说明了该方法的有效性。Sustained, rapid and unbalanced electricity demand growth and the rapid development of renewable energy have brought about new trends and new changes in Chinas energy and power development. In order to make the power balance target more diversified and solve the shortcomings of the current power balance and substation capacity demand calculation method, this paper proposes a power balance and substation capacity demand calculation method in the market environment. This method consider the distribution network to optimize the allocation of resources, and consider the adequacy of power balance, energy saving and new energy consumption and medium voltage grid construction of the overall economic benefits and social benefits, and solve the power supply range calculation method that can not completely distinguish between 110 kV and 35 kV network ,integration of high capacity load ratio selection method does not apply to such deficiencies, enhance the medium voltage distribution network interconneetion and mutual supply ability, as well as various types of power plants, the construction scale of installed capacity level, substation site landing guidance. The validity of the method is fully illustrated by the example analysis at the end of the paper.

关 键 词：电力平衡 变电容量需求 容载比 配电网 

分 类 号：TM744[电气工程—电力系统及自动化]