计及多因素影响的柔性限流器优化配置及经济性分析  

Optimal Configuration and Economic Analysis of Flexible Current Limiter Considering Influence of Multiple Factors

作　　者：郑峰 郑泽楠 伍仰金 郑传良 陈一强 ZHENG Feng;ZHENG Zenan;WU Yangjin;ZHENG Chuanliang;CHEN Yiqiang(School of Electrical Engineering and Automation,Fuzhou University,Fuzhou 350108,Fujian Province,China;State Grid Ningde Power Supply Company,Ningde 352100,Fujian Province,China;State Grid Quanzhou Power Supply Company,Quanzhou 362000,Fujian Province,China)

机构地区：[1]福州大学电气工程与自动化学院,福建省福州市350108 [2]国网福建省电力有限公司宁德供电公司,福建省宁德市352100 [3]国网福建省电力有限公司泉州供电公司,福建省泉州市362000

出　　处：《电网技术》2022年第4期1410-1420,共11页Power System Technology

基　　金：福建省自然科学基金项目(2019J01249);国网福建省电力有限公司科技项目(52139020006V)。

摘　　要：为了选取柔性限流器优化配置问题中成本、限流效果与负荷可靠性的折衷解,该文提出一种新型柔性限流器的Pareto优化配置方法。首先,该方法在传统灵敏度分析中引入Monte-Carlo故障模拟模型,结合配电网中的多个因素对控制变量与运行变量的耦合关系进行分析,以筛选对配电网影响较大的候选支路;其次提出多目标改进型蝙蝠算法以搜索Pareto前沿解集,通过引入随机惯性权重策略、局部迭代搜索策略、均衡策略以克服传统算法局部最优与早熟收敛的缺点;最后,基于全寿命周期成本与未来现金流量现值构建柔性限流器的经济价值模型,以评估所选方案的实际使用年限与各项成本。所提方法在改进型IEEE-33节点配电网中进行仿真验证,结果表明,该文所提方法具备较高的求解效率,为柔性限流器的实际工程应用提供了一种新的优化配置思路。In order to select the compromise solution of the costs,the current limiting effects and the load reliability in the optimal configuration of the flexible current limiter,this paper proposes a new type of Pareto optimization configuration method for the flexible current limiter.Firstly,this method introduces the Monte-Carlo fault simulation model into the traditional sensitivity analysis,which illustrates the coupling relationship between the control variables and the operating variables in combination with the multiple factors in the distribution network so as to select the candidate branches that have a greater impact on the distribution network.Secondly,a multi-objective improved bat algorithm is proposed to search the Pareto front solution set.By introducing the stochastic inertia weight strategy,the local iterative search strategy,and the balance strategy,the shortcomings of the local optimization and the premature convergence of the traditional algorithms are overcome.Finally,based on the whole life cycle costs and the present value of the future cash flows,an economic value model of the flexible current limiter is constructed to evaluate the actual service life and the various costs of the selected program.The proposed method is simulated and verified in an improved IEEE-33 node distribution network.The results show that the method proposed in this paper has high solving efficiency and provides a new optimal configuration idea for the practical engineering application of the flexible current limiters.

关 键 词：柔性限流器 灵敏度分析 Monte-Carlo故障模拟模型 多目标改进型蝙蝠算法 全寿命周期成本 

分 类 号：TM721[电气工程—电力系统及自动化]