同时考虑孤岛与重构的配电网故障恢复运行策略
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摘要
根据含分布式电源(distributed generation,DG)的配电网运行特点,提出一种综合考虑网络重构与孤岛划分的故障恢复运行策略。首先,通过对传统重构问题中相关约束的修改,使其允许切负荷操作与产生孤岛,并且使孤岛运行与重构操作相配合进行;然后,采用约束中0-1状态变量简化网络模型,提高运算效率;最后,采用二阶锥松弛技术将原始非凸非线性问题优化松弛为标准混合整数二阶锥规划(mixed integer second-order cone programming,MISOCP)问题,使其得以求解。算例结果证实了该策略的有效性,与其他算法的对比证实了该算法的优越性与准确性。
According to the operating characteristics of active distribution network,a fault recovery strategy,which can rationally coordinate the distribution network reconfiguration with isolated island partitioning,is presented. Firstly,load cutting and island partitioning are permitted by changing the constraints of traditional network reconfiguration model. Then,0-1 state variables in constraints are used to simplify the primary model and improve calculating efficiency. Finally,the second-order cone relaxation technique is adopted to convert the original nonconvex nonlinear problem into a mixed integer second-order cone programming( MISOCP) problem,which can be solved easily. Simulation results on modified IEEE 33-bus system showthe effectiveness of the strategy. Comparisons with other algorithms demonstrate the superiority and accuracy of algorithm in this paper.
According to the operating characteristics of active distribution network,a fault recovery strategy,which can rationally coordinate the distribution network reconfiguration with isolated island partitioning,is presented. Firstly,load cutting and island partitioning are permitted by changing the constraints of traditional network reconfiguration model. Then,0-1 state variables in constraints are used to simplify the primary model and improve calculating efficiency. Finally,the second-order cone relaxation technique is adopted to convert the original nonconvex nonlinear problem into a mixed integer second-order cone programming( MISOCP) problem,which can be solved easily. Simulation results on modified IEEE 33-bus system showthe effectiveness of the strategy. Comparisons with other algorithms demonstrate the superiority and accuracy of algorithm in this paper.
引文
[1]马钊,梁惠施,苏剑.主动配电系统规划和运行中的重要问题[J].电网技术,2015,39(6):1499-1503.M A Zhao,LIANG Huishi,SU Jian.Important issues in planning and operation of active distribution system[J].Pow er System Technology,2015,39(6):1499-1503.
[2]王旭东,林济铿.基于分支定界的含分布式发电配网孤岛划分[J].中国电机工程学报,2011,31(7):16-20.WANG Xudong,LIN Jikeng.Island partition of the distribution system w ith distributed generation based on branch and bound algorithm[J].Proceedings of the CSEE,2011,31(7):16-20.
[3]刘会家,程璐瑶,黄景光,等.考虑间歇性DG与负荷响应的多时段主动配电网孤岛划分[J].电力建设,2018,39(2):50-57.LIU Huijia,CHENG Luyao,HUANG Jingguang,et al.Islanding of multi period active distribution netw ork considering intermittent DG and load response[J].Electric Pow er Construction,2018,39(2):50-57.
[4]张磐,唐萍,丁一,等.考虑分布式发电波动性的有源配电网故障恢复策略[J].电力系统及其自动化学报,2018,30(1):115-120.ZHANG Pan,TANG Ping,DING Yi,et al.Service restoration strategy considering the volatility of distribution generations for active distribution netw ork[J].Proceedings of the CSU-EPSA,2018,30(1):115-120.
[5]向月,刘俊勇,姚良忠,等.故障条件下含分布式电源配网的孤岛划分与重构优化策略研究[J].电网技术,2013,37(4):1025-1032.XIANG Yue,LIU Junyong,YAO Liangzhong,et al.Optimization strategy for island partitioning and reconfiguration of faulted distribution netw ork containing distributed generation[J].Pow er System Technology,2013,37(4):1025-1032.
[6]孙洁,王增平,王英男,等.含分布式电源的复杂配电网故障恢复[J].电力系统保护与控制,2014,42(2):56-62.SUN Jie,WANG Zengping,WANG Yingnan,et al.Service restoration of complex distribution system w ith distributed generation[J].Power System Protection and Control,2014,42(2):56-62.
[7]PHAM T T H,BESANGER Y,HADJSAID N.New challenges in pow er system restoration w ith large scale of dispersed generation insertion[J].IEEE Transactions on Pow er Systems,2009,24(1):398-406.
[8]王佳佳,吕林,刘俊勇,等.基于改进分层前推回代法的含分布发电单元的配电网重构[J].电网技术,2010,34(9):60-64.WANG Jiajia,LLin,LIU Junyong,et al.Reconfiguration of distribution netw ork containing distribution generation units based on improved layered forw ard-backw ard sw eep method[J].Pow er System Technology,2010,34(9):60-64.
[9]雷绍兰,王世彬,胡晓倩,等.配电网供电恢复的混沌免疫算法[J].高电压技术,2009,35(6):1492-1496.LEI Shaolan,WANG Shibin,HU Xiaoqian,et al.Chaotic optimization integrated w ith artificial immune algorithm for distribution service restoration after faults[J].High Voltage Engineering,2009,35(6):1492-1496.
[10]周湶,解慧力,郑柏林,等.基于混合算法的配电网故障重构与孤岛运行配合[J].电网技术,2015,39(1):136-142.ZHOU Quan,XIE Huili,ZHENG Bolin,et al.Hybrid algorithm based coordination betw een distribution netw ork fault reconfiguration and islanding operation[J].Pow er System Technology,2015,39(1):136-142.
[11]胡哲晟,郭瑞鹏,蓝海波,等.基于有向图的含分布式电源配电网孤岛划分模型[J].电力系统自动化,2015,39(14):97-104.HU Zhesheng,GUO Ruipeng,LAN Haibo,et al.Islanding model of distribution systems w ith distribution generators based on directed graph[J].Automation of Electric Pow er Systems,2015,39(14):97-104.
[12]TAYLOR J A,HOVER F S.Convex models of distribution system reconfiguration[J].IEEE Transactions on Pow er Systems,2012,27(3):1407-1413.
[13]刘一兵,吴文传,张伯明,等.基于混合整数二阶锥规划的主动配电网有功–无功协调多时段优化运行[J].中国电机工程学报,2014,34(16):2575-2583.LIU Yibing,WU Wenchuan,ZHANG Boming,et al.A mixed integer second-order cone programming based active and reactive pow er coordinated multi-period optimization for active distribution netw ork[J].Proceedings of the CSEE,2014,34(16):2575-2583.
[14]赵金利,于莹莹,李鹏,等.基于锥优化的储能系统参与配电网运行调节快速计算方法[J].电力系统自动化,2016,40(2):30-35.ZHAO Jinli,YU Yingying,LI Peng,et al.A fast calculation method of energy storage system for distribution netw ork regulation based on conic programming[J].Automation of Electric Pow er Systems,2016,40(2):30-35.
[15]HUANG X Y,JI H R,LI P,et al.A fast modeling of distribution system reconfiguration based on mixed-integer second-order cone programming[C]//Preprints of the 5th international conference on Electric Utility Deregulation and Restructuring and Pow er Technologies.Changsha China:IEEE,2015:397-401.
[16]赵金利,于莹莹,李鹏,等.一种基于锥优化的DG优化配置快速计算方法[J].电工技术学报,2014,29(12):173-179.ZHAO Jinli,YU Yingying,LI Peng,et al.A fast determination method of DG capacity in distribution netw ork based on conic programming[J].Transactions of China Electrotechnical Society,2014,29(12):173-179.
[17]汪芳宗,王兆丰.基于混合整数二次锥规划方法的含分布式电源配电网优化重构方法[J].电力系统保护与控制,2016,44(24):24-30.WANG Zongfang,WANG Zhaofeng.An optimum reconfiguration method for distribution netw orks w ith DG based on mixed integer second-order cone programming[J].Pow er System Protection and Control,2016,44(24):24-30.
[2]王旭东,林济铿.基于分支定界的含分布式发电配网孤岛划分[J].中国电机工程学报,2011,31(7):16-20.WANG Xudong,LIN Jikeng.Island partition of the distribution system w ith distributed generation based on branch and bound algorithm[J].Proceedings of the CSEE,2011,31(7):16-20.
[3]刘会家,程璐瑶,黄景光,等.考虑间歇性DG与负荷响应的多时段主动配电网孤岛划分[J].电力建设,2018,39(2):50-57.LIU Huijia,CHENG Luyao,HUANG Jingguang,et al.Islanding of multi period active distribution netw ork considering intermittent DG and load response[J].Electric Pow er Construction,2018,39(2):50-57.
[4]张磐,唐萍,丁一,等.考虑分布式发电波动性的有源配电网故障恢复策略[J].电力系统及其自动化学报,2018,30(1):115-120.ZHANG Pan,TANG Ping,DING Yi,et al.Service restoration strategy considering the volatility of distribution generations for active distribution netw ork[J].Proceedings of the CSU-EPSA,2018,30(1):115-120.
[5]向月,刘俊勇,姚良忠,等.故障条件下含分布式电源配网的孤岛划分与重构优化策略研究[J].电网技术,2013,37(4):1025-1032.XIANG Yue,LIU Junyong,YAO Liangzhong,et al.Optimization strategy for island partitioning and reconfiguration of faulted distribution netw ork containing distributed generation[J].Pow er System Technology,2013,37(4):1025-1032.
[6]孙洁,王增平,王英男,等.含分布式电源的复杂配电网故障恢复[J].电力系统保护与控制,2014,42(2):56-62.SUN Jie,WANG Zengping,WANG Yingnan,et al.Service restoration of complex distribution system w ith distributed generation[J].Power System Protection and Control,2014,42(2):56-62.
[7]PHAM T T H,BESANGER Y,HADJSAID N.New challenges in pow er system restoration w ith large scale of dispersed generation insertion[J].IEEE Transactions on Pow er Systems,2009,24(1):398-406.
[8]王佳佳,吕林,刘俊勇,等.基于改进分层前推回代法的含分布发电单元的配电网重构[J].电网技术,2010,34(9):60-64.WANG Jiajia,LLin,LIU Junyong,et al.Reconfiguration of distribution netw ork containing distribution generation units based on improved layered forw ard-backw ard sw eep method[J].Pow er System Technology,2010,34(9):60-64.
[9]雷绍兰,王世彬,胡晓倩,等.配电网供电恢复的混沌免疫算法[J].高电压技术,2009,35(6):1492-1496.LEI Shaolan,WANG Shibin,HU Xiaoqian,et al.Chaotic optimization integrated w ith artificial immune algorithm for distribution service restoration after faults[J].High Voltage Engineering,2009,35(6):1492-1496.
[10]周湶,解慧力,郑柏林,等.基于混合算法的配电网故障重构与孤岛运行配合[J].电网技术,2015,39(1):136-142.ZHOU Quan,XIE Huili,ZHENG Bolin,et al.Hybrid algorithm based coordination betw een distribution netw ork fault reconfiguration and islanding operation[J].Pow er System Technology,2015,39(1):136-142.
[11]胡哲晟,郭瑞鹏,蓝海波,等.基于有向图的含分布式电源配电网孤岛划分模型[J].电力系统自动化,2015,39(14):97-104.HU Zhesheng,GUO Ruipeng,LAN Haibo,et al.Islanding model of distribution systems w ith distribution generators based on directed graph[J].Automation of Electric Pow er Systems,2015,39(14):97-104.
[12]TAYLOR J A,HOVER F S.Convex models of distribution system reconfiguration[J].IEEE Transactions on Pow er Systems,2012,27(3):1407-1413.
[13]刘一兵,吴文传,张伯明,等.基于混合整数二阶锥规划的主动配电网有功–无功协调多时段优化运行[J].中国电机工程学报,2014,34(16):2575-2583.LIU Yibing,WU Wenchuan,ZHANG Boming,et al.A mixed integer second-order cone programming based active and reactive pow er coordinated multi-period optimization for active distribution netw ork[J].Proceedings of the CSEE,2014,34(16):2575-2583.
[14]赵金利,于莹莹,李鹏,等.基于锥优化的储能系统参与配电网运行调节快速计算方法[J].电力系统自动化,2016,40(2):30-35.ZHAO Jinli,YU Yingying,LI Peng,et al.A fast calculation method of energy storage system for distribution netw ork regulation based on conic programming[J].Automation of Electric Pow er Systems,2016,40(2):30-35.
[15]HUANG X Y,JI H R,LI P,et al.A fast modeling of distribution system reconfiguration based on mixed-integer second-order cone programming[C]//Preprints of the 5th international conference on Electric Utility Deregulation and Restructuring and Pow er Technologies.Changsha China:IEEE,2015:397-401.
[16]赵金利,于莹莹,李鹏,等.一种基于锥优化的DG优化配置快速计算方法[J].电工技术学报,2014,29(12):173-179.ZHAO Jinli,YU Yingying,LI Peng,et al.A fast determination method of DG capacity in distribution netw ork based on conic programming[J].Transactions of China Electrotechnical Society,2014,29(12):173-179.
[17]汪芳宗,王兆丰.基于混合整数二次锥规划方法的含分布式电源配电网优化重构方法[J].电力系统保护与控制,2016,44(24):24-30.WANG Zongfang,WANG Zhaofeng.An optimum reconfiguration method for distribution netw orks w ith DG based on mixed integer second-order cone programming[J].Pow er System Protection and Control,2016,44(24):24-30.