Abstract:Integrated with the characteristics of the back/forward sweep, this paper presents the various models of distributed generators (DGs) adapted to the back/forward sweep method. Considering the limits of the back/forward sweep for solving PV node and meshed network, their power correction equations are put up based on resistance matrix, reactance matrix and mismatch of voltage magnitude, planning the flexible nodal numbering scheme suited for DGs and meshed network, giving the procedure of the improved back/forward sweep algorithm.Plenty of simulations with 20 buses and IEEE 90 buses system are carried out to illustrate the performance of the proposed method. The results show that the presented method is simple, flexible, reliable and available to solve power flow of radial and meshed distribution network with multi-source and multi-type DGs.
张立梅, 唐巍. 计及分布式电源的配电网前推回代潮流计算[J]. 电工技术学报, 2010, 25(8): 123-130.
Zhang Limei, Tang Wei. Back/Forward Sweep Power Flow Calculation Method of Distribution Networks With DGs. Transactions of China Electrotechnical Society, 2010, 25(8): 123-130.
[1] Agalgaonkar A P, Kulkarni S V, Khaparde S A.Evaluation of configuration plans for DGs in developing countries using advanced planning techniques[J]. IEEE Transactions on Power Systems, 2006, 21(2):973- 981. [2] Katiraei F, Iravani M R.Power management strategies for a microgrid with multiple distributed generation units[J]. IEEE Transactions on Power Systems, 2006, 21(4):1821-1831. [3] 林霞, 陆于平, 王联合.分布式发电条件下的多电源故障区域定位新方法[J].电工技术学报, 2008, 23(11):139-146. Lin Xia, Lu Yuping, Wang Lianhe. New fault region location scheme in distribution system with DGs[J]. Transactions of China Electro-technical Society, 2008, 23(11):139-146. [4] 王建, 李兴源, 邱晓燕.含有分布式发电装置的电力系统研究综述[J]. 电力系统自动化, 2005, 29(24):90-97. Wang Jian, Li Xingyuan, Qiu Xiaoyan.Power system research on distributed generation penetration[J]. Automation of Electric Power Systems, 2005, 29(24):90-97. [5] 王守相, 黄丽娟, 王成山, 等.分布式发电系统不平衡三相潮流计算[J].电力自动化设备, 2007, 27(8):11-15. Wang Shouxiang, Huang Lijuan, Wang Chengshan, et a1. Unbalanced three-phase power flow with distributed generation [J].Electric Power Automation Equipment, 2007, 27(8):11-15. [6] 彭谦, 姜彤, 杨以涵, 等.快速三相高斯潮流算法[J]. 中国电机工程学报, 2009, 29(4):48-52. Peng Qian, Jiang Tong, Yang Yihan, et al. Fast three-phase gauss load flow algorithm[J]. Proceedings of the CSEE, 2009, 29(4):48-52. [7] Teng J H.A direct approach for distribution system load flow solutions[J].IEEE Transactions on Power Delivery, 2003, 18(3):882-887. [8] Luo G X, Semlyen A.Efficient load flow for large weakly meshed networks[J].IEEE Transactions on Power Systems, 1990, 5(4), 1309-1316. [9] 张荣, 王秀和, 付大金, 等.改进的带二阶项配电网快速潮流算法[J].电工技术学报, 2004, 19(7):59-64. Zhang Rong, Wang Xiuhe, Fu Dajin, et al. Improved algorithm for fast distribution power flow calculation including second order term[J]. Transactions of China Electrotechnical Society, 2004, 19(7):59-64. [10] 欧阳武.含分布式发电的配电网规划研究[D]. 上海:上海交通大学, 2009. [11] 陈海焱, 陈金富, 段献忠.含分布式电源的配电网潮流计算[J].电力系统自动化, 2006, 30(1):35-40. Chen Haiyan, Chen Jinfu, Duan Xianzhong.Study on power flow calculation of distribution system with DGs[J].Automation of Electric Power Systems, 2006, 30(1):35-40. [12] Thomson M, Infield D G.Network power-flow analysis for a high penetration of distributed generation[J].IEEE Transactions on Power Systems, 2007, 22(3):1157-1162. [13] 陈珩.电力系统稳态分析[M]. 3版. 北京:中国电力出版社, 2007. [14] Chen T H, Chen M S.Distribution system power flow analysis-a rigid approach[J].IEEE Transactions on Power Delivery, 1991, 6(3):1146-1152. [15] Shirmohammadi D, Hong H W, Semlyen A, et al.A compensation based power flow method for weakly meshed distribution and transmission networks[J]. IEEE Transactions on Power Systems, 1988, 3(5):753-762. [16] 张学松, 柳焯, 于尔铿, 等.配电网追赶法潮流[J].中国电机工程学报, 1997, 17(6):382-385. Zhang Xuesong, Liu Zhuo, Yu Erkeng, et al.A load flow technique for distribution system based on triangular step by step method[J].Proceedings of the CSEE, 1997, 17(6):382-385. [17] 白宏坤, 李干生. 关于电磁环网弱开环方式的探讨[J]. 电力系统保护与控制, 2010, 38(2):60-64. Bai Hongkun, Li Gansheng. Discussion on weak open-loop mode of electromagnetic loop[J].Power System Protection and Control, 2010, 38(2):60-64. [18] 王志群, 朱守真, 周双喜, 等.分布式发电对配电网电压分布的影响[J].电力系统自动化, 2004, 28(16):56-60. Wang Zhiqun, Zhu Shouzhen, Zhou Shuangxi, et al.Impacts of distributed generation on distribution system voltage profile[J]. Automation of Electric Power Systems, 2004, 28(16):56-60. [19] Gosw A, Basu S K.Direct solution of distributed systems[J]. IEE Proceedings-Generation, Trans- mission and Distribution, 1999, 38(1):78-88.