1. Key Laboratory of Control of Power Transmission and Transformation Shanghai Jiao Tong University Shanghai 200240 China; 2. Engineering Dept. Shanghai Power Equipment Research Institute Shanghai 200240 China; 3. ALSTOM Grid Research & Technology Centre Stafford ST17 4LX UK
Abstract：Based on characteristics of optimal architecture planning in microgrid and outage costs of users, the corresponding model is proposed, in which the time-sequence property of distributed generation(DG) and load is included, considering both reliability, economy and user outage costs, to minimize the annual network cost. The constraints include power balance constraint, network operation constraint and reliability level constraints. Especially, the initial architecture is formed through Dijkstra algorithm, while improved genetic algorithm(GA) is adopted to solve the model. Finally, optimal architecture of a typical microgrid with 29 nodes is achieved in a residential block of Shanghai, which verifies feasibility of the proposed planning model and the corresponding solving algorithm.
[1] 盛鹍, 孔力, 齐智平, 等. 新型电网-微电网(Microgrid)研究综述[J]. 继电器, 2007, 35(12): 75-81. Sheng Kun, Kong Li, Qi Zhiping, et al. A survey on research of microgrid-a new power system[J]. Relay, 2007, 35(12): 75-81. [2] 姚勇, 朱桂萍, 刘秀成. 电池储能系统在改善微电网电能质量中的应用[J]. 电工技术学报, 2012, 27 (1): 85-89. Yao Yong, Zhu Guiping, Liu Xiucheng. Improvement of power quality of micro-grids by battery energy storage system[J]. Transactions of China Electrotech- nical Society, 2012, 27(1): 85-89. [3] 肖朝霞, 方红伟. 含多分布式电源的微网暂态稳定分析[J]. 电工技术学报, 2011, 26(S1): 253-261. Xiao Zhaoxia, Fang Hongwei. Transient stability analysis of microgrids containing multiple micro sources[J]. Transactions of China Electrotechnical Society, 2011, 26(S1): 253-261. [4] 段玉兵, 龚宇雷, 谭兴国, 等. 基于蒙特卡罗模拟的微电网随机潮流计算方法[J]. 电工技术学报, 2011, 26(S1): 274-278. Duan Yubing, Gong Yulei, Tan Xingguo, et al. Probabilistic power flow calculation in microgrid based on Monte-Carlo simulation[J]. Transactions of China Electrotechnical Society, 2011, 26(S1): 274-278. [5] 张犁, 孙凯, 吴田进, 等. 基于光伏发电的直流微电网能量变换与管理[J]. 电工技术学报, 2013, 28(2): 248-254. Zhang Li, Sun Kai, Wu Tianjin, et al. Energy conversion and management for DC microgrid based on photovoltaic generation[J]. Transactions of China Electrotechnical Society, 2013, 28(2): 248-254. [6] 李振杰, 袁越. 智能微网—未来智能配电网新的组织形式[J]. 电力系统自动化, 2009, 33(17): 42-48. Li Zhenjie, Yuan Yue. Smart microgrid: a novel organization form of smart distribution grid in the future[J]. Automation of Electric Power Systems, 2009, 33(17): 42-48. [7] Vallem M, Mitra J, Patra S. Distributed generation placement for optimal micro-grid architecture[C]. IEEE PES Transmission and Distribution Conference and Exhibition, 2006: 611-616. [8] Asano H, Watanabe H, Bando S. Methodology to design the capacity of a micro-grid[C]. IEEE Interna- tional Conference on System of Systems Engineering, 2007: 1-6. [9] Celli G. Optimal distributed generation allocation in MV distribution networks[J]. IEEE Power Engineering Society International Conference on Power Industry Computer Applications, Sydney, Australia, 2001, 81-86. [10] Kroposki B, Malmedal K. Optimum sizing and placement of distributed and renewable energy sources in electric power distributed systems[C]. Industry Applications Society Annual Meeting, 2009: 1-10. [11] Mitra J, Patra S, Ranade S. A dynamic programming based method for developing optimal microgrid architectures[C]. Proceedings of the 15th Power System Computation Conference, 2005: 22-26. [12] 李蕊. 配电网可靠性与重要电力用户停电损失研究[D]. 北京: 中国电力科学研究院, 2010. [13] 肖峻, 钟华赞, 于波. 含微网城市配电网的抗灾型多场景规划[J]. 电力系统保护与控制, 2012, 40(1): 101-106. Xiao Jun, Zhong Huazan, Yu Bo. Multi-scenario anti-disaster planning for urban distribution network containing microgrid[J]. Power System Protection and Control, 2012, 40(1): 101-106. [14] 霍佳丽, 王主丁, 聂崇峡. 电能损耗近似计算常用方法的误差分析[J]. 电网技术, 2009, 33(18): 50-56. Huo Jiali, Wang Zhuding, Nie Chongxia. Error analysis of widely used electric energy loss calculation methods [J]. Power System Technology, 2009, 33(18): 50-56. [15] 王方方. 基于改进遗传算法的配电网规划[D]. 上海: 上海交通大学, 2010. [16] Eduardo G Carrano, Luiz A E Soares, Ricardo H C Takahashi, et al. Electric distribution network multi- objective design using a problem-specific genetic algorithm[J]. IEEE Transactions on Power Delivery, 2006, 21(2): 995-1005. [17] 朱然, 谢文, 何海辉. 基于图论的配电网优化方法[J]. 广西轻工业, 2009(8): 73-74. Zhu Ran, Xie Wen, He Haihui. Optimization methods for distribution network planning based on graph theory [J]. Guangxi Journal of Light Industry, 2009(8): 73-74. [18] 叶萌. 分布式电源的选址定容及其对配电网可靠性的影响分析[D]. 北京: 华北电力大学, 2011.
2014, Vol. 29 
