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Distributed coordination reactive power sharing strategy for islanded microgrid


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Distributed coordination reactive power sharing strategy for islanded microgrid
Xiong Hui12Ren Jiangbo3Gu Qiaogen12Chang Fengran3
1.NARI-Relays Electric Co Ltd,Nanjing 211102,China; 2.State Grid Electric Power Research Institute,NARI Group Cooperation,Nanjing 211106,China 3.State Grid Hebei Electric Power Supply Company,Shijiazhuang 050021,China
islanded microgrid distributed coordination reactive power sharing droop control secondary control
In order to solve the problem that the distributed generator using the inverter droop control in the microgrid is difficult to realize the reasonable distribution of reactive power,and there are hidden problems in the safe operation of reactive power circulation,a distributed reactive power sharing strategy for islanded microgrid based on the finite time consistent control is proposed here. The reactive power output is equalized under the framework of no centralized controller,which can reduce the reactive circulating current of the system and improve the voltage quality. Compared with the traditional consistency strategy,the proposed reactive power sharing strategy has faster convergence speed,can optimize the convergence time and speed,and adapt to various disturbances in microgrid. In order to verify the reactive power sharing effect of the control strategy,a simulation model of the islanded microgrid is established in PSCAD/EMTDC. The effectiveness and adaptability of the distributed reactive power sharing strategy are verified in many scenarios.


[1] 徐丰.微电网建模及其控制策略研究[D]. 南京:南京理工大学自动化学院,2013.
[2]赵巍. 微网综合控制技术研究[D]. 南京:南京理工大学自动化学院,2013.
[3]唐宗尧. 微网对等控制及其运行特性研究[D]. 南京:南京理工大学自动化学院,2013.
[4]陈晓祺,贾宏杰,陈硕翼,等. 基于线路阻抗辨识的微电网无功均分改进下垂控制策略[J]. 高电压技术,2017,43(4):1271-1279.
Chen Xiaoqi,Jia Hongjie,Chen Shuoyi,et al. Improvement of droop control strategy for reactive power equalization of microgrid based on line impedance identification[J]. High Voltage Engineering,2017,43(4):1271-1279.
[5]魏川翔,杨燕翔,王军,等. 基于改进下垂控制策略的微电网无功均分研究[J]. 水电能源科学,2017(9):201-204.
Wei Chuanxiang,Yang Yanxiang,Wang Jun,et al. Research on reactive power equalization of microgrid based on improved droop control strategy[J]. International Journal Hydroelectric Energy,2017(9):201-204.
[6]刘尧. 交流微电网的无功功率均分控制策略研究[D]. 长沙:中南大学自动化学院,2014.
[7]王钦源. 交流微电网孤岛模式下无功功率均分控制策略研究[D]. 兰州:兰州理工大学电气工程与信息工程学院,2017.
[8]Lee C T,Chu C C,Cheng P T. A new droop control method for the autonomous operation of distributed energy resource interface converters[J]. IEEE Trans on Power Electronics,2013,28(4):1980-1983.
[9]韩华,刘尧,孙尧,等. 一种微电网无功均分的改进控制策略[J]. 中国电机工程学报,2014,34(16):2639-2648.
Han Hua,Liu Yao,Sun Yao,et al. An improved control strategy for reactive power equalization of microgrid[J]. Proceedings of the CSEE,2014,34(16):2639-2648.
[10]徐海珍,张兴,刘芳,等. 基于虚拟电容的微网逆变器无功均分控制策略[J]. 电力系统自动化,2016,40(19):59-65.
Xu Haizhen,Zhang Xing,Liu Fang,et al. Reactive power sharing control strategy for microgrid inverters based on virtual capacitor[J]. Automation of Electric Power Systems,2016,40(19):59-65.
[11]Mahmood H,Michaelson D,Jiang J. Accurate reactive power sharing in an islanded microgrid using adaptive virtual impedances[J]. IEEE Trans on Power Electronics,2015,30(3):1605-1617.
[12]高长璧.使用自适应虚拟阻抗的孤岛微网无功均分控制[J]. 电气传动,2017,47(10):42-47.
Gao Changbi. Reactive power sharing control of island microgrid using adaptive virtual impedance[J]. Electric Drive,2017,47(10):42-47.
[13]Shafiee Q,Guerrero J M,Vasquez J C. Distributed secondary control for islanded microgrids-a novel approach[J]. IEEE Trans on Power Electronics,2014,29(2):1018-1031.
[14]Shafiee Q,Stefanovic C,Dragicevic T,et al. Robust networked control scheme for distributed secondary control of islanded microgrids[J]. IEEE Trans on Industrial Electronics,2014,61(10):5363-5374.
[15]蔡卫峰.分层分布式电力系统故障诊断[J]. 南京理工大学学报,2003,27(4):442-445.
Cai Weifeng.Intelligent fault diagnosis pattern in distributed power system[J]. Journal of Nanjing University of Science and Technology,2003,27(4):442-445.


Last Update: 2020-04-20