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| 引用本文: | 游金阔,黄 霆,黄道姗,等.基于改进遗传算法的交直流系统低压减载优化策略[J].电力系统保护与控制,2016,44(14):40-47.[点击复制] |
| YOU Jinkuo,HUANG Ting,HUANG Daoshan,et al.Under-voltage load shedding optimization allocation for AC/DC hybrid system based on genetic algorithm[J].Power System Protection and Control,2016,44(14):40-47[点击复制] |
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| 基于改进遗传算法的交直流系统低压减载优化策略 |
| 游金阔,黄霆,黄道姗,蔡振才,李海坤 |
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| (智能电网教育部重点实验室天津大学，天津 300072;国网福建省电力有限公司电力科学研究院，福建 福州 350007;北京清软创新科技有限公司，北京 100085) |
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| 摘要: |
| 随着高压直流输电系统不断增多，大规模交直流混联电力系统逐渐成为我国电网输电的基本形式，对分析其稳定特性以及优化其控制方法也提出了新的要求。提出了以静态电压稳定性指标为约束的交直流混合系统低压减载优化策略。首先基于交替迭代法计算系统潮流，建立了适用于交直流输电的静态电压稳定性指标。其次基于改进遗传算法，以低压减载损失成本最小为目标函数，求解最优切负荷配置策略。最后仿真结果表明，新算法可以优化控制策略，维持系统稳定，减少损失成本。 |
| 关键词: 交直流混联 静态电压稳定指标 低压减载 交替迭代法 改进遗传算法 损失成本 |
| DOI：10.7667/PSPC151175 |
| 投稿时间：2015-07-09修订日期：2016-05-07 |
| 基金项目: |
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| Under-voltage load shedding optimization allocation for AC/DC hybrid system based on genetic algorithm |
| YOU Jinkuo,HUANG Ting,HUANG Daoshan,CAI Zhencai,LI Haikun |
(Ministry of Education Key Laboratory of Smart Grid Tianjin University, Tianjin 300072, China;Electric Power Research Institute of State Grid Fujian Electric Power Company Limited, Fuzhou 350007, China
;Beijing Tsingsoft Innovation Technology Company Limited, Beijing 100085, China) |
| Abstract: |
| With the increasing of the HVDC system, large-scale AC/DC hybrid power system gradually becomes the basic form of Chinese power grid transmission. It also puts forward new requirements to analyze the stability and optimize the control method. This paper presents an optimized scheme of the under-voltage load shedding for AC/DC hybrid systems with static voltage stability index as constraint. Firstly, the static voltage stability index of AC/DC transmission is established based on the alternating current iteration method. Secondly, in order to make the load loss minimized, the optimal load allocation strategy is solved based on the improved genetic algorithm. The simulation results show that the new algorithm can optimize the control strategy, maintain the stability of the system, and reduce the loss cost. |
| Key words: AC/DC hybrid static voltage stability index under-voltage load shedding alternating iteration method improved genetic algorithm loss cost |
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