中国电力 ›› 2017, Vol. 50 ›› Issue (9): 18-24.DOI: 10.11930/j.issn.1004-9649.201706124

• 电力规划专栏 • 上一篇    下一篇

适应新能源发展的电力规划方法研究

徐林1, 黄晓莉1, 杜忠明1, 张韬1, 李振杰1, 程临燕2   

  1. 1. 电力规划总院有限公司,北京 100120;
    2. 中国电力工程顾问集团华北电力设计院有限公司,北京 100120
  • 收稿日期:2017-03-24 出版日期:2017-09-25 发布日期:2017-09-11
  • 作者简介:徐林(1982—),男,辽宁抚顺人,博士,高级工程师,从事电力系统规划、智能电网研究。E-mail: lxu@eppei.com

Study on Power System Planning Method Adapting to New Energy Development

XU Lin1, HUANG Xiaoli1, DU Zhongming1, ZHANG Tao1, LI Zhenjie1, CHENG Linyan2   

  1. 1. Electric Power Planning & Engineering Institute Co., Ltd., Beijing 100120, China;
    2. North China Power Engineering Co., Ltd., of China Power Engineering Consulting Group, Beijing 100120, China
  • Received:2017-03-24 Online:2017-09-25 Published:2017-09-11

摘要: 研究了一种适应新能源发展的电力规划电力电量平衡和调峰计算方法。该方法首先建立了常规机组、新能源机组、负荷的概率分布模型,再进行卷积积分求出系统充裕度,并通过失负荷期望(LOLE)指标小于给定值完成电力电量平衡计算;在此基础上,提出了系统电力盈余系列指标,在假设所有常规机组都压到最小技术出力前提下,可通过该指标进行调峰计算,并求出具体时刻的弃风、弃光电量。算例表明,所提方法能正确反映新能源机组出力的随机性,合理计及新能源机组在电力电量平衡中的作用;对新能源高占比系统,因弃风、弃光现象时有发生,所提调峰计算方法更适用于对新能源电量消纳的计算。

关键词: 电力规划方法, 电力电量平衡, 调峰能力, 新能源发展

Abstract: Power-energy balance and peak regulation method is presented to adapt to the new energy development in power system planning. Firstly, with the convergence condition of given LOLE value, the power-energy balance is obtained by the convolutional integration of probability-distribution functions of the output of thermal and new-energy plants. Secondly,the over-supplied indices is also presented and used to evaluate the peak regulation capability of power system and the abandoned new energy in the case that all thermal plants are in their minimum technical capacity. Case studies show that the presented method is suitable for the variable-output of new-energy generators, which can evaluate their capability-effects correctly. The presented peak regulation method is more necessary in power system with rich new-energy, because the energy is abandoned so frequently for variable-generations.

Key words: power system planning method, power-energy balance, peak regulation capability, new-energy development

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