Research on Grid-Connected Operation Control Strategy Based on Hierarchical Control

doi:10.11985/2016.11.003

Abstract

Abstract:

The traditional hierarchical control combines the advantages of master-slave control strategy and peer control strategy, but the connections between the control layer of distributed generation and the energy management system and details of the transition between grid-connected and islanding operation is still flawed. In order to improve the hierarchical control strategy, based on the traditional hierarchical control proposed two improvements: The grid-connected power regulation was added in Droop control through the PI controller to achieve the instruction of tertiary control issued. The decision process of phase deviation was added in grid-connected pre-synchronizer to reduce frequency fluctuation when phase changed. In the Simulink platform, the improved hierarchical control strategy and the traditional hierarchical control strategy was simulated and analyzed. The results show that the method can improve the layer’s connectivity of the traditional hierarchical control and improve the stability of the system.

Key words: Microgrid, hierarchical control, droop control, instruction of tertiary control, determination of phase angle

CLC Number:

TM732

Hu Changbin,Chen Kaiyu. Research on Grid-Connected Operation Control Strategy Based on Hierarchical Control[J]. Journal of Electrical Engineering, 2016, 11(11): 19-25.

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References 13

[1]	赵宏伟, 吴涛 . 基于分布式电源的微网技术[J]. 电力系统及其自动化学报, 2008,20(1):121-128.
	Zhao Hongwei, Wu Tao . Review of distributed generation based microgrid technology[J]. Proceedings of the Chinese Society of Universities for Electric Power System and its Automation, 2008,20(1):121-128.
[2]	Guerrero Josep M, Member Senior . Hierarchical control of droop controlled AC and DC microgrids-a general approach toward standardization[J]. IEEE Transactions on Industrial Electronics, 2011,58(1):158-172. doi: 10.1109/TIE.2010.2066534
[3]	许守平, 侯朝勇, 王坤洋 , 等. 分层控制在微网中的应用研究[J]. 电网与清洁能源, 2013,29(6):39-45.
	Xu Shouping, Hou Chaoyong, Wang Kunyang , et al. Application research of hierarchical control in microgrid[J]. Power System and Clean Energy, 2013,29(6):39-45.
[4]	赵冬梅, 张楠, 刘燕华 , 等. 基于储能的微网并网和孤岛运行模式平滑切换综合控制策略[J]. 电网技术, 2013,37(2):301-306.
	Zhao Dongmei, Zhang Nan, Liu Yanhua , et al. Synthetical control strategy for smooth switching between grid-connected and islanded operation modes of microgrid based on energy storage system[J]. Power System Technology, 2013,37(2):301-306.
[5]	唐西胜, 邓卫, 齐智平 . 基于储能的微网并网/离网无缝切换技术[J]. 电工技术学报, 2011,26(1):279-284.
	Tang Xisheng, Deng Wei, Qi Zhiping . Research on grid-connected/islanded seamless transition of microgrid based on energy storage[J]. Transactions of China Electrotechnical Society, 2011,26(1):279-284.
[6]	唐芬 , Guerrero Josep M, 周啸,等.一种可实现微网系统快速平滑并网的主动同步控制策略[J]. 电力系统自动化, 2014,38(8):15-22. doi: 10.7500/AEPS20130816010
	Tang Fen, Guerrero Josep M, Zhou Xiao , et al. An active synchronization control strategy for fast and smooth integration of microgrid[J]. Automation of Electric Power Systems, 2014,38(8):15-22. doi: 10.7500/AEPS20130816010
[7]	Mohamed Yasser A I, Radwan Amr A . Hierarchical control system for robust microgrid operation and seamless mode transfer in active distribution systems[J]. IEEE Transactions on Smart Grid, 2011,2(2):352-362. doi: 10.1109/TSG.2011.2136362
[8]	马玉娟, 杨国华, 周鑫 , 等. 基于改进下垂法的微网并网控制策略研究[J]. 电测与仪表, 2015,52(16):61-66. doi: 10.1080/01658107.2019.1566384 pmid: 31741674
	Ma Yujuan, Yang Guohua, Zhou Xin , et al. Research on control strategy of micro-grid-connected based on the improved droop method[J]. Electrical Measurement & Instrumentation, 2015,52(16):61-66. doi: 10.1080/01658107.2019.1566384 pmid: 31741674
[9]	郑竞宏, 王燕廷, 李兴旺 , 等. 微电网平滑切换控制方法及策略[J]. 电力系统自动化, 2011,35(18):17-24.
	Zheng Jinghong, Wang Yanting, Li Xingwang , et al. Control methods and strategies of microgrid smooth switchover[J]. Automation of Electric Power Systems, 2011,35(18):17-24.
[10]	杨苹, 许志荣, 郑群儒 , 等. 微电网平滑切换中变流器的控制策略仿真研究[J]. 可再生能源, 2015,33(11):1625-1629.
	Yang Ping, Xu Zhirong, Zheng Qunru , et al. Research on control strategy of converter for micro-grid smooth switching[J]. Renewable Energy Resources, 2015,33(11):1625-1629.
[11]	Yao W, Chen M, Matas J , et al. Design and analysis of the droop control method for parallel inverters considering the impact of the complex impedance on the power sharing[J]. IEEE Transactions on Industrial Electronics, 2011,58(2):576-587. doi: 10.1109/TIE.2010.2046001
[12]	Guerrero Josep M, Vicuna Luis G, Matas J , et al. Output impedance design of parallel-connected UPS inverters with wireless load-sharing control[J]. IEEE Transactions on Industrial Electronics, 2005,52(4):1126-1135. doi: 10.1109/TIE.2005.851634
[13]	鲍薇, 胡学浩, 李光辉 , 等. 基于同步电压源的微电网分层控制策略设计[J]. 电力系统自动化, 2013,37(23):20-26. doi: 10.7500/AEPS201212009
	Bao Wei, Hu Xuehao, Li Guanghui , et al. Synchronous voltage source based design of hierarchical control strategy for microgrid[J]. Automation of Electric Power Systems, 2013,37(23):20-26. doi: 10.7500/AEPS201212009

[1]	SUN Shitao,WANG Jiuhe,LI Ping,YANG Jixin. Design of Passive Controller for Optical Storage Microgrid Based on EL Model [J]. Journal of Electrical Engineering, 2019, 14(3): 16-22.
[2]	Mao Meiqin,Xu Rui. Economic Dispatch Method for Islanding Microgrids Based on Distributed Control [J]. Journal of Electrical Engineering, 2018, 13(9): 8-13.
[3]	Xing Zuoxia,Lu Yandong,Dong Huanbao. Power Decoupling Control Strategy of Variable Impedance Ratio Based on Virtual Impedance for Microgrid [J]. Journal of Electrical Engineering, 2018, 13(5): 14-20.
[4]	Wei Zhao, Xiaoxi Bi, Wubo Wang, Xiaofeng Sun. Microgrid Relay Protection Scheme Based on Harmonic Footprint of Short-Circuit Fault [J]. Chinese Journal of Electrical Engineering, 2018, 4(4): 64-70.
[5]	AI Chao, ZHANG Yabin, CHEN Hanchao, CHEN Lijuan, KONG Xiangdong. Hydraulic Wind Turbine Low Voltage Ride Through Hierarchical Control [J]. Journal of Mechanical Engineering, 2018, 54(20): 96-105.
[6]	Jianwei Zhang, Li Li, David G. Dorrell. Control and Applications of Direct Matrix Converters: A Review [J]. Chinese Journal of Electrical Engineering, 2018, 4(2): 18-27.
[7]	Tomislav Dragicevic, Dan Wu, Qobad Shafiee, Lexuan Meng. Distributed and Decentralized Control Architectures for Converter-Interfaced Microgrids [J]. Chinese Journal of Electrical Engineering, 2017, 3(2): 2-2.
[8]	Fei Rong, Zhangtao Yin, Zhikang Shuai, Shoudao Huang. A Power Allocation Method for Grid-Connected MMC Inverter Based on Droop Control [J]. Chinese Journal of Electrical Engineering, 2016, 2(2): 67-74.
[9]	Wan Qingzhu,Wang Xin. New Progress on Optimal Operation for Household Photovoltaic Microgrid [J]. Journal of Electrical Engineering, 2016, 11(11): 33-39.
[10]	Du Zhichao,Ou yang Li,Zhou Chun,Hu Juan. Research on Novel Master-Slave Control Strategy of Islanded Microgrids [J]. Journal of Electrical Engineering, 2015, 10(4): 53-61.
[11]	Zhang Junjun,Wu Hongfei,Ge Hongjuan,Xing Yan,Cao Feng. Power System with Modular Three-Port Converters for Distributed Loads [J]. Journal of Electrical Engineering, 2015, 10(4): 91-98.
[12]	TAN Dongkui, CHEN Wuwei, WANG Jiaen, WANG Hongbo, HUANG He. Human-machine Sharing and Hierarchical Control Based Lane Departure Assistance System [J]. Journal of Mechanical Engineering, 2015, 51(22): 98-110.
[13]	DUAN Ying;DUAN Wenze. DYNAMIC PROGRAMMING MODEL OF LARGE-SCALE SYSTEM WITH DELAY AND ITS OPTIMIZATION ALGORITHM [J]. , 2007, 43(4): 217-223.
[14]	Li Rui;Yu Miao;Chen Weimin;Liao Changrong;Dong Xiaomin. CONTROL OF AUTOMOTIVE SUSPENSIONS VIBRATION VIA MAGNETO RHEOLOGICAL DAMPER [J]. , 2005, 41(6): 128-132.