大电网多站点无功补偿协调控制的多目标混合优化方法

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摘要针对大电网中多站点多目标无功协调控制模型收敛难、对离散变量初值敏感和耗时长的不足,提出一种基于分区求解的混合求解方法改善求解的效率和稳定性。首先利用NSGA-II处理离散变量的优势,筛选出无功协调控制问题在目标函数空间的优秀分区,采用NBI+GAMS快速求解所有优秀分区的最优解集,并过滤得到Pareto前沿,求解过程中引入多代理并行技术增加遗传种群和加快求解速度。对南方电网西电东送通道22个500kV枢纽变电站进行无功协调控制仿真,结果表明混合求解方法能够快速有效地求解大规模电网多站点的多目标无功协调控制模型。与单独采用NSGA-II相比,混合求解算法具有更优的收敛速度和Pareto前沿分布性。

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关键词 ： 500kV变电站, 静止无功补偿器, 低压电容/电抗器, 多目标优化, 协调控制, 多代理并行技术

Abstract：Multi-objective reactive power coordinated control model in large-scale power systems has the disadvantages such as the convergence difficulty, time consuming and sensitive to the initial value of discrete variables. A hybrid algorithm adopting subarea solving was presented in this paper to improve efficiency and stability of the solution. Firstly, good subareas in the objective function space of reactive power coordination control problem were searched by NSGA-II algorithm. Optimal solution set of each good subarea could be solved by NBI+GAMS method quickly and the Pareto front could be obtained by filtering all optimal solution sets. Multi-agent parallel technology was introduced to increase the genetic populations and speed up solution. The coordinated results of 22 500kV substations in large power grid verify the quickness and the effectiveness of the proposed hybrid algorithm. Compared with the NSGA-II algorithm, the hybrid algorithm has better convergence speed and distribution of the Pareto solution sets.

Key words： 500kV substation static reactive power compensator low-voltage capacitors/reactors multi-objective optimization coordinated control multi-agent parallel technology

收稿日期: 2014-10-25 出版日期: 2017-02-08

PACS:

TM732

基金资助:国家自然科学基金（51107042）,国家高技术研究发展计划（863计划）（2012AA050209）和中央高校基金（D215090w）资助项目

作者简介: 董萍女,1978年生,博士,副教授,研究方向为直流输电、FACTS技术及电力系统优化与控制。E-mail: epdping@scut.edu.cn（通信作者）;徐良德男,1989年生,硕士研究生,研究方向为直流输电、FACTS技术及电力系统优化与控制。E-mail: 149391036@qq.com

引用本文:

董萍, 徐良德, 刘明波, 秦川. 大电网多站点无功补偿协调控制的多目标混合优化方法[J]. 电工技术学报, 2017, 32(2): 271-280. Dong Ping, Xu Liangde, Liu Mingbo, Qin Chuan. Multi-Objective Hybrid Optimization Method for Coordinated Control of Reactive Power Compensation Devices among Multiple Substations in Large-Scale Power Systems. Transactions of China Electrotechnical Society, 2017, 32(2): 271-280.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2017/V32/I2/271

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