| 引用本文: | 陈奎,张云,王洪寅,万新强.基于免疫算法的含分布式电源配电网的故障定位[J].电力系统保护与控制,2017,45(24):57-62.[点击复制] |
| CHEN Kui,ZHANG Yun,WANG Hongyin,WAN Xinqiang.Fault-section location of distribution network containing distributed generation based on immune algorithm[J].Power System Protection and Control,2017,45(24):57-62[点击复制] |
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| 摘要: |
| 分布式电源(DG)的接入，使传统配电网络拓扑结构从单电源辐射状网络变成复杂的多电源网络。在这种情况下，传统的故障定位算法已不再适用。针对这一问题，提出了一种新的基于故障电流的故障定位算法——免疫算法。首先，针对含DG的配电网，构建了适应多个分布式电源的故障电流编码方式和适应多个分布式电源的开关函数。其次，相比传统的遗传算法，免疫算法通过计算抗体的匹配程度和浓度对个体进行评价，并且增加了记忆单元保证了算法进化过程中抗体的多样性从而避免了遗传算法中的‘早熟’收敛问题。最后，通过Matlab建模仿真，验证了该算法适用于含分布式电源(DG)配电网的故障定位，并具有一定的快速性和容错性。 |
| 关键词: 分布式电源 配电网 故障定位 免疫算法 故障电流编码 开关函数 |
| DOI：10.7667/PSPC161971 |
| 投稿时间：2016-11-27修订日期：2017-03-16 |
| 基金项目:国家自然科学基金项目(51407183) |
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| Fault-section location of distribution network containing distributed generation based on immune algorithm |
| CHEN Kui,ZHANG Yun,WANG Hongyin,WAN Xinqiang |
| (School of Electrical and Power Engineering, China University of Mining & Technology, Xuzhou 221008, China;Suqian Power Supply Company of Jiangsu Province, Suqian 223800, China) |
| Abstract: |
| The connection of DG makes distribution network topology be changed from single-power radial network to complicated network with multi-power. Under such condition, traditional fault location algorithm is no longer applicable. To solve this problem, this paper proposes a new fault location algorithm based on fault current —— immune algorithm. First, according to the distribution network with DG, the fault current coding mode adapting to multiple distributed power supply and the switching function of multiple distributed power supply are constructed. Secondly, compared with the traditional genetic algorithm, the immune algorithm evaluates the individuals by calculating the affinity and concentration of the individual and increases the memory unit to ensure the diversity of the antibody during the evolution of the algorithm, thus avoiding the 'premature' convergence problem. Finally, through the Matlab modeling and simulation, it is proved that the algorithm is suitable for fault location of distribution network with distributed generation (DG), and has a certain speediness and fault tolerance. This work is supported by National Natural Science Foundation of China (No. 51407183). |
| Key words: distributed generation distribution network fault location immune algorithm fault current encoding switching function |
