基于PAM时段划分的配电网动态重构
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摘要
为保证配电网的安全稳定运行,提出一种基于PAM(Partitioning Around Medoid)时段划分的配电网动态重构方法。以配电网网络损耗、电压偏移和负荷均衡为目标函数,建立配电网动态重构模型。针对配电网动态重构过程中的时段划分问题,给出一种以相异度为分段指标的PAM时段划分方法。为提升协同粒子群算法(Cooperative particle swarm optimization,Co-pso)的寻优能力,对其速度更新公式进行修正,并引入正态分布随机调整因子对协同粒子群算法进行改进。选择IEEE33节点系统进行算例分析计算,算例结果验证了上述方法的有效性。
In order to ensure the safe and stable operation of the distribution network, a dynamic reconfiguration method of distribution network based on Partitioning Around Medoid(PAM) time division is proposed. The dynamic reconstruction model of distribution network is established based on network loss, voltage offset and load balance. Aiming at the time division problem in the process of dynamic reconfiguration of distribution network, a method of PAM time division based on dissimilarity is presented. To improve the searching ability of the Cooperative Particle Swarm Optimization(CO-PSO), the velocity updating formula is modified and the normal distribution random adjustment factor is introduced to improve the CO-PSO. The IEEE33 node system is calculated and analyzed. The calculation results verify the validity of the above method.
In order to ensure the safe and stable operation of the distribution network, a dynamic reconfiguration method of distribution network based on Partitioning Around Medoid(PAM) time division is proposed. The dynamic reconstruction model of distribution network is established based on network loss, voltage offset and load balance. Aiming at the time division problem in the process of dynamic reconfiguration of distribution network, a method of PAM time division based on dissimilarity is presented. To improve the searching ability of the Cooperative Particle Swarm Optimization(CO-PSO), the velocity updating formula is modified and the normal distribution random adjustment factor is introduced to improve the CO-PSO. The IEEE33 node system is calculated and analyzed. The calculation results verify the validity of the above method.
引文
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[21]郭腾云,刘艳.基于博弈方法的含分布式电源配电网重构优化[J].电力系统保护与控制,2017,45(7):28-34.GUO Tengyun,LIU Yan.Game theory based reconfiguration optimization for distribution network with distributed generations[J].Power System Protection and Control,2017,45(7):28-34.
[2]庞清乐,高厚磊,李天友.基于负荷均衡的智能配电网故障恢复[J].电网技术,2013,37(2):342-348.PANG Qingle,GAO Houlei,LI Tianyou.Load balancing based fault service restoration for smart distribution grid[J].Power System Technology,2013,37(2):342-348.
[3]刘佳,程浩忠,肖峻,等.计及N-1安全准则的智能配电网多目标重构策略[J].电力系统自动化,2016,40(7):9-15.LIU Jia,CHENG Haozhong,XIAO Jun,et al.A multiobjective reconfiguration strategy for smart distribution network considering N-1 security criterion[J].Automation of Electric Power Systems,2016,40(7):9-15.
[4]李辰雷,卫志农,韩连山.序优化理论在配电网重构中的应用[J].电力系统保护与控制,2015,43(8):41-48.LI Chenlei,WEI Zhilong,HAN Lianshan.Application of ordinal optimization in distribution network reconstruction[J].Power System Protection and Control,2015,43(8):41-48.
[5]邱骁奇,胡志坚.基于改进教与学优化算法的配电网重构[J].电力系统保护与控制,2016,44(12):42-49.QIU Xiaoqi,HU Zhijian.Reconfiguration of distribution network based on improved teaching-learning-based optimization algorithm[J].Power System Protection and Control,2016,44(12):42-49.
[6]刘志勇,刘杨华,林舜江,等.基于模糊多目标协调优化的配电网络重构研究[J].电力系统保护与控制,2014,42(4):133-138.LIU Zhiyong,LIU Yanghua,LIN Shunjiang,et al.Fuzzy multi-objective coordination optimization for distribution network reconfiguration[J].Power System Protection and Control,2014,42(4):133-138.
[7]冯禹清,马永红,朱继忠.基于多智能体动态拓扑重构的主动配电网经济优化研究[J].南方电网技术,2018,12(1):76-83.FENG Yuqing,MA Yonghong,ZHU Jizhong.Economic optimization research on active distribution network based on multi-agent dynamic topology reconfiguration[J].Southern Power System Technology,2018,12(1):76-83.
[8]唐可,邱晓燕,王兰,等.基于风电功率预测信息的配电网滚动实时重构策略[J].电力系统及其自动化学报,2017,29(4):72-77.TANG Ke,QIU Xiaoyan,WANG Lan,et al.Scrolling reconfiguration strategy for distribution network based on prediction information of wind power[J].Proceedings of the CSU-EPSA,2017,29(4):72-77.
[9]ZHOU Huizhi,TANG Fei,LIU Dichen,et al.Active distribution network dynamic reconfiguration and DGdynamic control strategy considering time-variant load[J].Power System Technology,2016,40(8):2423-2429.
[10]向小蓉,刘涤尘,向农,等.基于并行禁忌搜索算法的配电网重构[J].电网技术,2012,36(8):100-105.XIANG Xiaorong,LIU Dichen,XIANG Nong,et al.Distribution network reconfiguration based on parallel Tabu search algorithm[J].Power System Technology,2012,36(8):100-105.
[11]田昊,吕林,高红均,等.计及电网运行特性的配电网动态重构[J].电力系统保护与控制,2015,43(1):9-14.TIAN Hao,LüLin,GAO Hongjun,et al.Dynamic reconfiguration of distribution network considering power grid operation characteristic[J].Power System Protection and Control,2015,43(1):9-14.
[12]孙惠娟,彭春华,袁义生.综合开关次数分析的配电网多目标动态重构[J].电力自动化设备,2014,34(9):41-46.SUN Huijuan,PENG Chunhua,YUAN Yisheng.Multiobjective dynamic distribution network reconfiguration considering switching frequency[J].Electric Power Automation Equipment,2014,34(9):41-46.
[13]张珂,吕林,孙宇乐.基于隶属度时段划分的配电网动态重构[J].电力系统保护与控制,2016,44(3):51-57.ZHANG Ke,LüLin,SUN Yule.Dynamic reconfiguration of distribution network based on membership partition of time intervals[J].Power System Protection and Control,2016,44(3):51-57.
[14]张炳达,刘洋.应用进化规划变异算子的配电网重构算法[J].电网技术,2012,36(4):202-206.ZHANG Bingda,LIU Yang.A distribution network reconfiguration algorithm based on evolutionary programming mutation operator[J].Power System Technology,2012,36(4):202-206.
[15]马箐,谢娟英.基于粒计算的K-medoids聚类算法[J].计算机应用,2012,32(7):1973-1977.MA Jing,XIE Juanying.New K-medoids clustering algorithm based on granular computing[J].Computer Application,2012,32(7):1973-1977.
[16]陈萍,毛弋,童伟,等.基于多目标粒子群算法的配电网多目标优化重构[J].电力系统及其自动化学报,2016,28(7):68-72.CHEN Ping,MAO Yi,TONG Wei,et al.Multi-objective distribution network reconfiguration based on multiobjective particle swarm optimization[J].Proceedings of the CSU-EPSA,2016,28(7):68-72.
[17]苏适,周立栋,陆海,等.基于改进混沌粒子群算法的多源独立微网多目标优化方法[J].电力系统保护与控制,2017,45(23):34-41.SU Shi,ZHOU Lidong,LU Hai,et al.Multi-objective optimization method of multi-source independent microgrid based on modified CPSO[J].Power System Protection and Control,2017,45(23):34-41.
[18]张庭场,耿光飞.基于改进粒子群算法的中压配电网无功优化[J].电网技术,2012,36(2):158-162.ZHANG Tingchang,GENG Guangfei.Reactive power optimization for medium voltage distribution network based on improved particle swarm optimization[J].Power System Technology,2012,36(2):158-162.
[19]DABRA V,PALIWAL K K,SHARMA P,et al.Optimization of photovoltaic power system:a comparative study[J].Protection and Control of Modern Power Systems,2017,2(1):125-135.DOI:10.1186/s41601-017-0036-2.
[20]刘科研,何开元,盛万兴.基于协同粒子群优化算法的配电网三相不平衡状态估计[J].电网技术,2014,38(4):1026-1031.LIU Keyan,HE Kaiyuan,SHENG Wanxing.A cooperative particle swarm optimization based state estimation of unbalanced three-phase distribution network[J].Power System Technology,2014,38(4):1026-1031.
[21]郭腾云,刘艳.基于博弈方法的含分布式电源配电网重构优化[J].电力系统保护与控制,2017,45(7):28-34.GUO Tengyun,LIU Yan.Game theory based reconfiguration optimization for distribution network with distributed generations[J].Power System Protection and Control,2017,45(7):28-34.