Coordination Optimization of Power Support Capability

doi:10.3969/j.issn.1000－7229.2016.10.010

Abstract

Abstract: To alleviate the calculation complexity of power system reliability evaluation, this paper proposes a reliability evaluation model for power system based on network partition and coordination optimization of power support capability. This model determines the coordination solution sequence of subareas according to the generation margin, takes the tie line power between subareas as equivalent loads at the boundary nodes of subareas, and adopts the optimal load shedding model to optimize the load curtailment and power support capabilities of subareas successively according to the coordination solution sequence. Compared with the conventional partition equivalence technique of power system reliability evaluation, the proposed network partition and coordination model can realize the effective modeling of the power support capabilities among subareas, and enhance the reliability evaluation efficiency of power system while guaranteeing high accuracy, due to considering the generation margin and power flow constraints of subareas and adopting the optimization model to calculate the maximum equivalent load of subareas. Finally, this paper verifies the rapidity and effectiveness of the proposed model through IEEE-RTS96 test system.

Key words: power system reliability, equivalent load, generation margin, network partition and coordination

CLC Number:

TM 732

JIN Liming，ZHOU Ning，FENG Li，LU Zhiran，ZHAO Yuan. Coordination Optimization of Power Support Capability[J]. Electric Power Construction, 2016, 37(10): 69-.

References

［1］李文沅, 周家启, 卢继平, 等. 电力系统风险评估: 模型, 方法和应用［M］. 北京：科学出版社, 2006. ［2］LI W Y.Risk assessment of power systems：models，methods and applications［M］.New Jersey, USA：IEEE Press，2005：1-6. ［3］赵渊, 周家启, 周念成, 等. 大电力系统可靠性评估的解析计算模型［J］. 中国电机工程学报, 2006, 26(5): 19-25. ZHAO Yuan, ZHOU Jiaqi, ZHOU Niancheng, et al. An analytical approach for bulk power systems reliability assessment［J］. Proceedings of the CSEE, 2006, 26(5): 19-25. ［4］卢治燃.大电网可靠性评估的外网概率等值和分区协调求解模型研究［D］. 重庆：重庆大学, 2015. LU Zhiran. Research on probability equivalent and network partition coordination model for power system reliability evaluation［D］. Chongqing: Chongqing University, 2015. ［5］赵渊, 周家启, 谢开贵. 基于网流规划的发输电组合系统可靠性评估模型研究［J］. 电网技术, 2003, 27(10): 21-24. ZHAO Yuan, ZHOU Jiaqi, XIE Kaigui. Study on reliability assessment model of composite generation and transmission system based on network flow programming［J］. Power System Technology, 2003,27(10): 21-24. ［6］AKHAVEIN A, FIRUZABAD M F, BILLINTONR, et al. Review of reduction techniques in the determination of composite system adequacy equivalents［J］. Electric Power Systems Research, 2010, 80(12): 1385-1393. ［7］熊宁, 蔡恒, 程虹. 支路故障后静态电压稳定裕度的估算［J］. 电网技术, 2012, 36(9): 151-154. XIONG Ning, CAI Heng, CHENG Hong. A method to estimate static voltage stability margin after branch outage［J］. Power System Technology, 2012, 36(9): 151-154. ［8］吴开贵, 王韶, 张安邦, 等. 基于RBF神经网络的电网可靠性评估模型研究［J］. 中国电机工程学报, 2000, 20(6):9-12. WU Kaigui, WANG Shao, ZHANG Anbang, et al. The study on reliability assessment of electrical power systems using RBF neural network［J］. Proceedings of the CSEE, 2000, 20(6):9-12. ［9］谢开贵, 周家启. 基于ANN削减负荷的发输电组合系统可靠性评估［J］. 电力系统自动化, 2002, 26(22): 31-33, 44. XIE Kaigui, ZHOU Jiaqi. Reliability evaluation of bulk power system using artificial neural network for load shedding［J］. Automation of Electric Power Systems, 2002, 26(22): 31-33, 44. ［10］胡博, 谢开贵, 赵渊, 等. 电力系统可靠性评估的动态任务分配并行算法［J］. 电力系统自动化, 2011, 35(10): 35-41. HU Bo, XIE Kaigui, ZHAO Yuan, et al. Parallel algorithm for reliability evaluation of bulk power system with dynamic task allocation technique［J］. Automation of Electric Power Systems, 2011, 35(10): 35-41. ［11］ZHANG W, BILLINTON R. Application of an adequacy equivalent method in bulk power system reliability evaluation［J］. IEEE Transactions on Power Systems, 1998, 13(2): 661-666. ［12］BILLINTON R, ZHANG W. Adequacy equivalent development of composite generation and transmission systems［J］. Reliability Engineering & System Safety, 2001, 74(1): 1-12. ［13］孙闻,方华亮,余锦河,等.基于分区的大电网可靠性计算［J］. 华中科技大学学报(自然科学版),2013,41(4):88-92. SUN Wen, FANG Hualiang, YU Jinhe, et al. Computing the reliability of large-scale power grids by partitioning［J］. Journal of Huangzhong University of Science & Technology (Natural Science Edition), 2013, 41(4): 88-92. ［14］AUDOMVONGSEREE K, EUA-ARPORN B. Composite system reliability evaluation using AC equivalent network［C］//International Conference on Power System Technology, 2000. IEEE, 2000: 751-756. ［15］MAGHRABY H A M, ALLAN R N. Application of DC equivalents to the reliability evaluation of composite power systems［J］. IEEE Transactions on Power Systems, 1999, 14(1): 355-361. ［16］AKHAVEIN A, FOTUHI-FIRUZABAD M, BILLINTON R, et al. Adequacy equivalent development of composite generation and transmission systems using network screening［J］. IET Generation, Transmission & Distribution, 2011, 5(11): 1141-1148. ［17］汪兴强, 丁明, 韩平平. 互联电力系统可靠性评估的改进等效模型［J］. 电工技术学报, 2011, 26(9): 201-207. WANG Xingqiang, DING Ming, HAN Pingping. An improved equivalent model for reliability evaluation in interconnected power system［J］. Transactions of China Electrotechnical Society, 2011, 26(9): 201-207. ［18］李江,刘伟波, 李国庆, 等. 基于序贯蒙特卡罗法的复杂配电网可靠性分析［J］. 电力建设, 2015, 36(11): 17-23. LI Jiang, LIU Weibo, LI Guoqing, et al. Reliability analysis of complex distribution network based on sequential Monte Carlo method［J］. Electric Power Construction, 2015, 36(11): 17-23. ［19］程林, 王旭, 黄俊辉, 等. 基于配网重构的交直流混联配电网可靠性分析［J］. 电力建设, 2016, 37(5): 2-9. CHENG Lin, WANG Xu, HUANG Junhui, et al. Reliability analysis of AC/DC hybrid distribution network based on network reconfiguration［J］. Electric Power Construction, 2016, 37(5): 2-9. ［20］赵渊, 周家启, 周念成, 等. 发输电系统可靠性评估的启发式就近负荷削减模型［J］. 电网技术, 2005, 29(23): 34-39. ZHAO Yuan，ZHOU Jiaqi，ZHOU Niancheng, et al. A heuristic approach to local load shedding scheme for reliability assessment of composite generation and transmission system［J］. Power System Technology, 2005, 29(23): 34-39. ［21］BILLINTON R,LI W Y. Reliability assessment of electric power systems using Monte Carlo methods［M］.New York, USA: Plenum Press,1994: 209-254. ［22］王彤, 卢斯煜, 金小明, 等. 风电并网对南方电网可靠性的影响评估［J］. 电力建设, 2015, 36(10): 161-166. WANG Tong，LU Siyu，JIN Xiaoming, et al. Influence assessment of wind power integration on China southern power grid reliability［J］. Electric Power Construction, 2015, 36(10): 161-166. ［23］LI W, MUKERJI R, PATTON D. A report prepared by the reliability test system task force of the application of probability methods subcommittee［J］.IEEE Transactions on Power Systems，1999，14(3)：1010-1020.

[1]	DENG Shuairong，ZHAO Weifang，RAN Li，WEN An. Power Flow Algorithm of DC Distribution Network Based on Load Equivalent Conductance Iteration [J]. Electric Power Construction, 2017, 38(4): 64-.
[2]	XIAO Yong， LI Xiaoying， ZHAO Tianyang， LIU Wenxia. Credible Capacity Assessment of Wind Power Considering Grid Constraints in Western Water-Enriched Region [J]. Electric Power Construction, 2016, 37(6): 134-141.
[3]	GONG Benhui,YAO Li, FU Xu,XIAO Han,LI Bin,WANG Xiuli. A Fast Calculation Method of Renewable Energy Accommodation Capacity Based on Equivalent Load Interval and Probability Production Simulation [J]. Electric Power Construction, 2016, 37(3): 24-30.