基于BF行为的多目标分布估计算法优化配置SFCL
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摘要
电力环网中超导故障限流器(SFCL)的优化配置需兼顾局部最优与全局最优之间的矛盾,研究满足收敛性和多样性要求的SFCL优化配置方法。针对现有方法遇到的局部与全局优化、单目标与多目标优化之间的矛盾,综合考虑电力环网内各条线路和全网对优化配置的要求,定义线路灵敏度系数指标,建立基于该指标的SFCL优化配置模型,详细研究了该模型的多目标分布估计算法的具体配置过程,提出一种基于细菌觅食行为的多目标分布估计算法(MEDA-BF)的SFCL优化配置方法。运用评价算法优化性能的收敛性和多样性指标进行算法性能的评估,所提方法的两个指标的均值和方差均小于现有方法,具有更快、更稳定的收敛性。对IEEE-30节点系统进行仿真,并与现有方法进行对比分析,所提方法使SFCL优化配置的目标函数更快速稳定地收敛到最配置目标,在实际配置SFCL方面优于现有方法。
Optimal allocation superconducting fault current limiter( SFCL) in ring power system needed to balance the local optimum and the global optimum,researched to meet the requirements of convergence and diversity of optimal allocation SFCL. First of all,this paper defined the branch sensitivity coefficient index and put forward the model of optimal allocation of SFCL based on the index. Then,it used a multi-objective distribution estimation algorithm based on bacterial foraging( MEDA-BF) to optimization allocation SFCL and used the convergence and diversity index to evaluation the optimization performance of the algorithm. At last,it conducted simulation on the IEEE-30 nodes system and compared the results with existing methods. Results show that the method is better than the existing methods.
Optimal allocation superconducting fault current limiter( SFCL) in ring power system needed to balance the local optimum and the global optimum,researched to meet the requirements of convergence and diversity of optimal allocation SFCL. First of all,this paper defined the branch sensitivity coefficient index and put forward the model of optimal allocation of SFCL based on the index. Then,it used a multi-objective distribution estimation algorithm based on bacterial foraging( MEDA-BF) to optimization allocation SFCL and used the convergence and diversity index to evaluation the optimization performance of the algorithm. At last,it conducted simulation on the IEEE-30 nodes system and compared the results with existing methods. Results show that the method is better than the existing methods.
引文
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[14]乔英,高岳林,江巧永.基于细菌觅食行为的多目标分布估计算法[J].计算机应用研究,2011,28(10):3681-3683,3686.
[15]PARK C H,JANG G.Stochastic estimation of voltage sags in a large meshed network[J].IEEE Trans on Power Delivery,2007,22(3):1655-1664.
[2]刘宾,梅军,郑建勇,等.SFCL接入电网对接地短路阻抗继电器接线的影响[J].电力自动化设备,2013,33(6):108-112.
[3]KIM H R,YU S D,KIM H,et al.Demonstration of a superconducting fault current limiter in a real grid[J].IEEE Trans on Applied Superconductivity,2013,23(3):5603604.
[4]TENG J H,LU C N.Optimum fault current limiter placement with search space reduction technique[J].IET Generation Transmission&Distribution,2010,4(4):485-494.
[5]MASAKI N,KAZUYUKI T,HARUHITO T.FCL location selection in large scale power system[J].IEEE Trans on Applied Superconductivity,2001,11(1):2489-2494.
[6]胡文旺,卫志农,孙国强,等.基于灵敏度法的超导故障限流器的优化配置[J].电力系统自动化,2012,36(22):62-67.
[7]DEB K,PRAAP A,AGARWAL S,et al.A fast and elitist multi-objective genetic algorithm:NSGA-2[J].IEEE Trans on Evolutionary Comutation,2002,6(2):182-197.
[8]陈妍君,顾洁,金之俭,等.电阻型超导限流器仿真模型及其对10k V配电网的影响[J].电力系统自动化设备,2013,33(2):87-91.
[9]孙树敏,刘洪顺,李庆发,等.电力系统故障限流器研究综述[J].电网技术,2008,32(21):75-79.
[10]周树德,孙增圻.分布估计算法综述[J].自动化学报,2007,33(2):113-124.
[11]叶宝林,高慧敏,王筱萍,等.基于分布估计算法的二阶段置换流水车间调度算法[J].计算机应用研究,2011,28(10):3702-3706.
[12]王雪松,程玉虎.机器学习理论、方法及应用[M].北京:科学出版社,2009:116-172.
[13]NIU Ben,WANG Hong,WANG Jing-wen,et al.Multi-objective bacterial foraging optimization[J].Neurocomputing,2013,116(1):336-345.
[14]乔英,高岳林,江巧永.基于细菌觅食行为的多目标分布估计算法[J].计算机应用研究,2011,28(10):3681-3683,3686.
[15]PARK C H,JANG G.Stochastic estimation of voltage sags in a large meshed network[J].IEEE Trans on Power Delivery,2007,22(3):1655-1664.