微电网互联运行的分时优化与实时控制方法

摘要
图/表
参考文献
相关文章 (3)

全文: PDF (3508 KB)
输出: BibTeX | EndNote (RIS)

摘要将相邻的孤立微电网互联运行,可促进资源的时空互补与运行优化。提出互联微电网分时优化调度与实时协调控制相结合的运行方法,旨在降低系统发电成本,提高运行稳定性。在分时优化调度层面,基于超短期预测结果,以全系统发电成本最低为目标,提出考虑资源时空互补特性的优化调度方法;在实时协调控制层面,针对风、光、负荷的随机性而引起的功率波动问题,提出基于动态下垂控制的联络线定功率控制方法,使功率波动量得到经济合理分配。算例验证了分时优化调度方法可促进资源互补、降低运行成本,实时仿真结果验证了动态下垂控制策略可有效实现联络线定功率控制。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	刘念
	李岩松
	张建华
	雷金勇

关键词 ：互联微电网, 分时优化, 实时控制, 动态下垂

Abstract：It is conducive for operation optimization and resource complementation in space and time to interconnect the neighboring autonomous micro-grids.An operation method combining hour-ahead optimization with real-time control is put forward in this paper,aimed at reducing generation cost and improving operation stability.From the aspect of hour-ahead optimization,a dispatching method of global optimization is proposed,which takes resource complementarity in space and time into consioderation.It is based on ultra-short term forecasting results and aims at a minimum generation cost.From the aspect of real-time coordination control,in view of the power fluctuation problem caused by randomness of wind resource,solar resource and load,a method of constant power control for the tie-line based on dynamic droop control strategy is proposed.It makes the power fluctuations distributed reasonably and economically.Finally in this paper,an example is executed in order to verify that the dispatching method of short-term optimization can promote resource complementation and reduce operation cost.The result of the real-time simulation confirms the validity of the dynamic droop control strategy for constant power control of the tie-line.

Key words： Micro-gird interconnection hour-ahead optimization real-time control dynamic droop control

收稿日期: 2015-04-22 出版日期: 2016-11-21

PACS:

TM732

基金资助:国家高技术研究发展计划项目(863计划)(2014AA052001)资助。

作者简介: 刘念男,1981年生,博士,副教授,研究方向为智能配用电与微电网、电力信息安全等。E-mail:nian-liu@163.com(通信作者) 李岩松男,1991年生,硕士研究生,研究方向为微电网运行与控制。E-mail:liyansong169@126.com

引用本文:

刘念,李岩松,张建华,雷金勇. 微电网互联运行的分时优化与实时控制方法[J]. 电工技术学报, 2016, 31(21): 1-11. Liu Nian,Li Yansong,Zhang Jianhua,Lei Jinyong. Hour-Ahead Optimization and Real-Time Control Method for Micro-Grid Interconnection. Transactions of China Electrotechnical Society, 2016, 31(21): 1-11.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2016/V31/I21/1

[1] Lasseter R H,Akhil A,Marnay C,et al.The CERTS microgrid concept,White paper on integration of distributed energy resources[R/OL].http://www.energy.ca.gov/research/notices/2002-05-02_WORKSHOP_SUPP.PDF.
[2] 王成山,武震,李鹏.微电网关键技术研究[J].电工技术学报,2014,29(2):1-12.
Wang Chengshan,Wu Zhen,Li Peng.Research on key technologies of microgrid[J].Transactions of China Electrotechnical Society,2014,29(2):1-12.
[3] 张建华,于雷,刘念,等.含风/光/柴/蓄及海水淡化负荷的微电网容量优化配置[J].电工技术学报,2014,29(2):102-112.
Zhang Jianhua,Yu Lei,Liu Nian,et al.Capacity configuration optimization for island microgrid with wind/photovoltaic/diesel/storage and seawater desalination load[J].Transactions of China Electrotechnical Society,2014,29(2):102-112.
[4] Kamel R M,Chaouachi A,Nagasaka K.Analysis of transient dynamic response of two nearby micro-grids under three different control strategies[J].Low Carbon Economy,2010,1:39-53.
[5] Resende F O,Gil N J,Pecas Lopes J A.Service restoration on distribution systems using multi-microgrids[J].European Transactions on Electrical Power,2010,21(2):1327-1342.
[6] Shahnia F,Chandrasena R P S,Rajakaruna S,et al.Primary control level of parallel distributed energy resources converters in system of multiple interconnected autonomous microgrids within self-healing networks[J].IET Generation Transmission & Distribution,2014,8(2):203-222.
[7] Nutkani I U,Loh P C,Blaabjerg F.Distributed operation of interlinked ac microgrids with dynamic active and reactive power tuning[J].IEEE Transactions on Industry Applications,2013,49(5):2188-2196.
[8] Kaneko N,Fujita G.Autonomous decentralized control of preserving-type distributed energy system[C]//International Universities’ Power Engineering Conference,2013:1-6.
[9] Koyanagi K,Hida Y,Yokoyama R,et al.Electricity cluster-oriented network:A grid-independent and autonomous aggregation of micro-grids[C]//IEEE Proceedings of the International Symposium on Modern Electric Power Systems,2010:1-6.
[10]徐曼,乔颖,鲁宗相.短期风电功率预测误差综合评价方法[J].电力系统自动化,2011,35(12):20-26.
Xu Man,Qiao Ying,Lu Zongxiang.A comprehensive error evaluation method for short-term wind power prediction[J].Automatic of Electric Power System,2011,35(12):20-26.
[11]Ravn H F.Short term wind power prognosis with different success criteria[C]//International Conference on Probabilistic Methods Applied to Power Systems,2006:1-5.
[12]朱永强,田军.最小二乘支持向量机在光伏功率预测中的应用[J].电网技术,2011,35(7):54-59.
Zhu Yongqiang,Tian Jun.Application of least square support vector machine in photovoltaic power forecasting[J].Power System Technology,2011,35(7):54-59.
[13]汤庆峰,刘念,张建华,等.基于EMD-KELM-EKF与参数优选的用户侧微电网短期负荷预测方法[J].电网技术,2014,38(10):2691-2699.
Tang Qingfeng,Liu Nian,Zhang Jianhua,et al.A short-term load forecasting method for micro-grid based on EMD-KELM-EKF and parameter optimization[J].Power System Technology,2014,38(10):2691-2699.
[14]何东,刘瑞叶.基于主成分分析的神经网络动态集成风功率超短期预测[J].电力系统保护与控制,2013,41(4):50-54.
He Dong,Liu Ruiye.Ultra-short-term wind power prediction using ANN ensemble based on the principal components analysis[J].Power System Protection and Control,2013,41(4):50-54.
[15]程序,周海,王知嘉,等.晴空工况光伏超短期功率预报方法[J].可再生能源,2011,29(6):142-145.
Cheng Xu,Zhou Hai,Wang Zhijia,et al.The method for ultra-short-term photovoltaic power prediction under clear sky condition[J].Renewable Energy Resources,2011,29(6):142-145.
[16]陈民铀,朱博,徐瑞林,等.基于混合智能技术的微电网剩余负荷超短期预测[J].电力自动化设备,2012,32(5):13-18.
Chen Minyou,Zhu Bo,Xu Ruilin,et al.Ultra-short-term forecasting of microgrid surplus load based on hybrid intelligence techniques[J].Electric Power Automation Equipment,2012,32(5):13-18.
[17]修春波,任晓,李艳晴,等.基于卡尔曼滤波的风速序列短期预测方法[J].电工技术学报,2014,29(2):253-259.
Xiu Chunbo,Ren Xiao,Li Yanqing,et al.Short-time prediction method of wind speed series based on Kalman filtering fusion[J].Transactions of China Electrotechnical Society,2014,29(2):253-259.
[18]王锡凡,方万良,杜正春.现代电力系统分析[M].北京:科学出版社,2009.
[19]赵媛媛,艾芊,余志文,等.考虑多种因素评估的微电网优化调度[J].电力系统保护与控制,2014,42(23):23-30.
Zhao Yuanyuan,Ai Qian,Yu Zhiwen,et al.A microgrid optimal scheduling considering the assessment of various factors[J].Power System Protection and Control,2014,42(23):23-30.
[20]陈健,王成山,赵波,等.考虑储能系统特性的独立微电网系统经济运行优化[J].电力系统自动化,2012,36(20):25-31.
Chen Jian,Wang Chengshan,Zhao Bo,et al.Economic operation optimization of a stand-alone microgrid system considering characteristics of energy storage system[J].Automatic of Electric Power System,2012,36(20):25-31.
[21]丁明,张颖媛,茆美琴,等.包含钠硫电池储能的微网系统经济运行优化[J].中国电机工程学报,2011,31(4):7-14.
Ding Ming,Zhang Yingyuan,Mao Meiqin,et al.Economic operation optimization for microgrids including na/s battery storage[J].Proceedings of the CSEE,2011,31(4):7-14.
[22]Dufo-lópez R,Bernal-Agustin J L.Multi-objective design of PV-wind-diesel-hydrogen-battery systems[J].Renewable Energy,2008,33(12):2559-2572.
[23]Vrettos E I,Papathanassiou S A.Operating policy and optimal sizing of a high penetration res-bess system for small isolated grids[J].IEEE Transactions on Energy Conversion,2011,26(3):744-756.
[24]沈玉明,胡博,谢开贵,等.计及储能寿命损耗的孤立微电网最优经济运行[J].电网技术,2014,38(9):2371-2378.
Shen Yuming,Hu Bo,Xie Kaigui,et al.Optimal economic operation of isolated microgrid considering battery life loss[J].Power System Technology,2014,38(9):2371-2378.
[25]刘念,张清鑫,刘海涛.基于核函数极限学习机的微电网短期负荷预测方法[J].电工技术学报,2015,30(8):218-224.
Liu Nian,Zhang Qingxin,Liu Haitao.Online short-term load forecasting based on ELM with kernel algorithm in micro-grid environment[J].Transactions of China Electrotechnical Society,2015,30(8):218-224.
[26]路欣怡,刘念,陈征,等.电动汽车光伏充电站的多目标优化调度方法[J].电工技术学报,2014,29(8):46-56.
Lu Xinyi,Liu Nian,Chen Zheng,et al.Multi-objective optimal scheduling for PV-assisted charging station of electric vehicles[J].Transactions of China Electrotechnical Society,2014,29(8):46-56.
[27]尤毅,刘东,钟清,等.多时间尺度下基于主动配电网的分布式电源协调控制[J].电力系统自动化,2014,38(9):192-198,203.
You Yi,Liu Dong,Zhong Qing,et al.Multi-time scale coordinated control of distributed generators based on active distribution network[J].Electric Power Automation Equipment,2014,38(9):192-198,203.
[28]奚玲玲.分布式能源微网控制保护与能量管理解决方案[J].电气技术,2014(S1):79-81.
Xi Lingling.Control and protection strategy and energy management solution for micro-grid consists of distributed sources[J].Electrical Engineering,2014(S1):79-81.
[29]于文鹏,刘东,余南华.馈线控制误差及其在主动配电网协调控制中的应用[J].中国电机工程学报,2013,33(13):108-115.
Yu Wenpeng,Liu Dong,Yu Nanhua.Feeder control error and its application in coordinate control of active distribution network[J].Proceedings of the CSEE,2013,33(13):108-115.
[30]陈珩.电力系统稳态分析[M].北京:中国电力出版社,2007.
[31]沈沉,吴翔宇,王志文,等.微电网实践与发展思考[J].电力系统保护与控制,2014,42(5):1-11.
Shen Chen,Wu Xiangyu,Wang Zhiwen,et al.Practice and rethinking of microgrids[J].System Protection and Control,2014,42(5):1-11.
[32]王成山,肖朝霞,王守相.微网中分布式电源逆变器的多环反馈控制策略[J].电工技术学报,2009, 24(2):100-107.
Wang Chengshan,Xiao Chaoxia,Wang Shouxiang.Multiple feedback loop control scheme for inverters of the micro source in microgrids[J].Transactions of China Electrotechnical Society,2009,24(2):100-107.