中国电力 ›› 2013, Vol. 46 ›› Issue (5): 71-76.DOI: 10.11930/j.issn.1004-9649.2013.5.71.5

• 新能源 • 上一篇    下一篇

基于准定向变异和变异回滚微分算法的风电场无功补偿

郑太一1, 焦邵华2, 赵会龙3, 林俐3   

  1. 1. 吉林电网调度中心,吉林 长春 130021;
    2. 北京四方继保自动化股份有限公司,北京 100084;
    3. 华北电力大学 电气与电子工程学院,北京 102206
  • 收稿日期:2012-12-20 出版日期:2013-05-05 发布日期:2015-12-14
  • 作者简介:郑太一(1959—),男,吉林舒兰人,高级工程师,从事电力系统调度及自动化研究。E-mail: zhengty@jlep.com.cn
  • 基金资助:
    国家863高技术基金项目(2011AA05A104)

Quasi-Directional Variation and Rollback Mutation Based Differential Evolution Algorithm for Reactive Power Compensation of Wind Farms

ZHENG Tai-yi1, JIAO Shao-hua2, ZHAO Hui-long3, LIN Li3   

  1. 1. Dispatch Center of Jilin Power Grid, Changchun 130021, China;
    2. Beijing Sifang Automation Co., Ltd., Beijing 100084, China;
    3. School of Electrical & Electronic Engineering, North China Electric Power University, Beijing 102206, China
  • Received:2012-12-20 Online:2013-05-05 Published:2015-12-14

摘要: 电网无功补偿方案求解是高维非线性寻优问题,大规模风电场的接入增加了求解这一问题的难度。微分进化算法是求解此类问题的有效算法,但该算法对初始种群依赖性强且前期寻优逼近能力弱,因此提出准定向变异和变异回滚策略对其进行改进。以全网母线电压偏移和为目标函数,以基于准定向变异和变异回滚策略的改进微分进化算法为求解工具,建立求解大规模风电场无功补偿方案的计算模型。与普通微分进化算法相比,该算法在寻优初期具有寻优能力强且快速逼近最优解的优点,其确定的补偿方案可明显提高地区电网的电压水平。

关键词: 风电场, 无功补偿, 微分进化算法, 准定向变异, 变异回滚

Abstract: Reactive power compensation of power grids is a kind of high-dimensional nonlinear optimization procedure that will become extremely complex with the integration of large-scale wind farms. Differential evolution algorithm is an effective method to solve the problem. To overcome its heavy dependence on the initial population and weak capability to approach to the optimization solution in the early process, a strategy based on quasi-directional variation and rollback mutation is presented to improve the performance of the algorithm. The sum of all bus voltage deviations is treated as the objective function and a computational model to design the compensation scheme is established. Compared with the ordinary differential evolution algorithm, the proposed algorithm is more efficient in searching for optimal solution with better convergence, such that the compensation scheme can be obtained with significant improvements in the area voltage profiles.

Key words: wind farm, reactive power compensation, differential evolution algorithm, quasi-directional variation, rollback mutation

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