| 引用本文: | 潘智俊,张 焰,祝达康,阮映琴.计及电网运行非均匀性的多目标输电网规划[J].电力自动化设备,2014,34(5): |
| PAN Zhijun,ZHANG Yan,ZHU Dakang,RUAN Yingqin.Multi-objective transmission network planning considering grid-operational heterogeneity[J].Electric Power Automation Equipment,2014,34(5): |
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| 摘要: |
| 电网运行非均匀性是电力系统的一项基本状态属性，反映了电网结构的合理性以及对电网运行安全可靠性的影响。在分析影响电网运行非均匀性因素的基础上，结合分层分区思想，以输电线路负载率的标准离差率为各区域运行非均匀性评价指标，同时考虑电网扩建成本和线路损耗，建立电网扩展规划的多目标优化模型。针对多目标量纲的不统一性，定义遗传择优因子，通过改进遗传算法实现多目标优化的折中求解策略。IEEE Garver 6 节点系统和华东某地区输电网规划算例分析表明，所提方法有效可行。 |
| 关键词: 电力系统 输电 规划 电网运行非均匀性 标准离差率 遗传算法 遗传择优因子 优化 |
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| Multi-objective transmission network planning considering grid-operational heterogeneity |
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PAN Zhijun1, ZHANG Yan1, ZHU Dakang2, RUAN Yingqin2
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1.Shanghai Jiao Tong University，Shanghai 200240，China;2.Shanghai Municipal Electric Power Company，Shanghai 200122，China
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| Abstract: |
| The heterogeneity of grid operation is a basic state attribute of power system，which reflects the rationality of grid structure and the impact on the safety and reliability of grid operation. The influencing factors of grid operational heterogeneity are analyzed and a multi-objective optimization model is built for the hierarchical and partitioned expansion planning of power transmission network，which takes the CV （Coefficient of Variance） of transmission line load rate as the evaluation index of region-operational heterogeneity and considers the expansion cost and transmission line loss. Aiming at the dimensional disunity of multiple objectives，a genetic merit factor is defined and the genetic algorithm is improved to obtain the compromise solution of the proposed model. The case analysis for IEEE Garver 6-bus system and a regional transmission network planning verifies the effectiveness and feasibility of the proposed method. |
| Key words: electric power systems electric power transmission planning grid-operational heterogeneity coefficient of variance genetic algorithms genetic merit factor optimization |
