Transient Stability Analysis of Microgrids Containing Multiple Micro Sources
Xiao Zhaoxia1, 3, Fang Hongwei2
1. Tianjin Polytechnic University Tianjin 300160 China 2. Tianjin University Tianjin 300072 China 3. Province-Ministry Joint Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability, Hebei University of Technology Tianjin 300130 China
Abstract：Transient stability of the MicroGrid in which the micro sources use the P-f & Q-V droop control and PQ control is investigated. The microsources using P-f & Q-V three-loop feedback control can keep the frequency stable and can share the load power in an islanded microgrid. The micro source using PQ control can make the output power of the microsouce following the reference power. The impacts of the motor load starting, load power changing and three-phase short circuit fault on the microgrid transient stability are researched in detail when the microgrid operates in grid-connected or islanding modes. The effects of the control approach on microgrid transient stability are analyzed. And the relationship between the proportion of motor load and critical claering time (CCT) was achieved.
[1] Lasseter R H. Microgrids[C]. IEEE Power Engineering Society Winter Meeting, USA, 2002, 1: 305-308. [2] European research project microgrids[J/OL]. Available: http: //MicroGrids. power. ece. ntua. gr. [3] European research project more microgrids [J/OL]. Available: http: //microgrids. power. ece. ntua. gr. [4] Hatziargyriou N, Asano H, Iravani R, et al. An overview of ongoing research, development, and demonstration projects[J]. IEEE power and energy magazine, 2007: 78-94. [5] Xiao Zhaoxia, Wu Jianzhong, Nick Jenkins. An overview of microgrid control [J]. Intelligent Automation and Soft Computing, 2010, 16(2): 199-212. [6] 撖奥洋, 邓星, 文明浩. 高渗透率下大电网应对微网接入的策略[J]. 电力系统自动化, 2010, 34(1): 78-83. Han Aoyang, Deng Xing, Wen Minghao. Strategy of large power system coping with accession of microgrid with high penetration[J]. Automation of Electric Power Systems, 2010, 34(1): 78-83. [7] 丁明, 张颖媛, 茆美琴. 微网研究中的关键技术[J]. 电网技术, 2009, 33(11): 6-11. [8] 盛鹍, 孔力, 齐智平. 新型电网-微电网(Microgrid)研究综述[J]. 继电器, 2007, 35(12): 75-81. [9] 鲁宗相, 王彩霞, 闵勇, 等. 微电网研究综述[J]. 电力系统自动化, 2007, 31(19): 100-107. [10] 裴玮, 李澍森, 李惠宇, 等. 微网运行控制的关键技术及其测试平台[J]. 电力系统自动化, 2010, 34(1): 94-98. Pei Wei, Li Shusen, Li Huiyu. Key technology and testbed for microgrid operation control[J]. Automation of Electric Power Systems, 2010, 34(1): 94-98. [11] 顾和荣, 赵清林, 郭小强, 等. 基于二自由度电流调节的分布式发电系统并网控制技术[J]. 电工技术学报, 2010, 25(8): 154-160. Gu Herong, Zhao Qinglin, Guo Xiaoqiang, et al. Grid- connected control for distributed generation based on two-degree-of-freedom current regulation[J]. Transac- tions of China Electrotechnical Society, 2010, 25(8): 154-160. [12] 黄伟, 孙昶辉, 吴子平, 等. 含分布式发电系统的微网技术研究综述[J]. 电网技术, 2009, 33(9): 14-19. Huang Wei, Sun Changhui, Wu Ziping. A review on microgrid technology containing distributed generation system[J]. Power System Technology, 2009, 33(9): 14-19. [13] Venkataramanan G, Marnay C. A larger role for microgrids [J]. IEEE Power and Energy Magazine, 2008, 6(3): 78-82. [14] 丁明, 杨向真, 苏建徽. 基于虚拟同步发电机思想的微电网逆变电源控制策略[J]. 电力系统自动化, 2007, 33(8): 89-93. [15] 王成山, 肖朝霞, 王守相. 微网中分布式电源逆变器的P-f和Q-V多环反馈控制策略研究[J]. 电工技术学报, 2009, 24(2): 100-107. [16] 王成山, 肖朝霞, 王守相. 微网综合控制与分析[J]. 电力系统自动化, 2008, 32(7): 98-103. [17] Lopes J A P, Moreira C L. Defining control strategies for microgrids islanded operation[J]. IEEE Transtions on Power Systems, 2006, 21(2): 916-924. [18] Piagi P, Lasseter R H. Autonomous control of microgrids[C]. IEEE Power Engineering Society General Meeting, Montreal, 2006. [19] 肖朝霞, 王成山. 含多分布式电源的微网小信号稳定性分析[J]. 电力系统自动化, 2009, 33(6): 81-85. [20] Guerrero J M, García L D V, Matas J, et al. Wireless-control strategy for parallel operation of distributed generation inverters[J]. IEEE Transactions on Industrial Electronics, 2006, 53(5): 1461-1470. [21] Katiraei F, Iravani M R, Lehn P W. Small-signal dynamic model of a micro grid including conventional and electronically interfaced distributed resources[J]. IET Generation, Transmission and Distribution, 2007, 1(3): 369-378. [22] Pogaku N, Prodanovic M, Green T C. Modelling, analysis and testing of autonomous operation of an inverterbased microgrid[J]. IEEE Transactions on power electronics, 2007, 22(2): 613-625. [23] Barklund E, Nagaraju Pogaky, Green T C, et al. Energy management in autonomous microgrid using stability contrained droop control of inverters [J]. IEEE Transactions on Power Electronics, 2008, 23(5): 2346-2352. [24] Jayawarna N, Wut X, Zhangt Y, et al. Stability of a microgrid[C]. The 3rd IET International Conference on Power Electronics, Machines and Drives, Ireland, 2006: 316-320. [25] Wu X, Zhang Y, Arulampalam A, et al. Electrical stability of large scale integration of micro generation into low voltage grids[J]. International Journal of Electronics, 2005, 1(4): 1-23. [26] Jones C E. Local control of microgrids using energy storage [D]. UK: University of Manchester, 2007. [27] 肖朝霞. 微网控制及运行特性分析[D]. 天津: 天津大学, 2008.
2011, Vol. 26 
