电工电气杂志社

弱惯性交流微电网群的分布式多目标协同控制方法

来源：电工电气发布时间：2023-07-01 10:01 浏览次数：233

弱惯性交流微电网群的分布式多目标协同控制方法

何志毅¹，匡洪海¹，于锡琪²，常宇瑞¹，王凯¹

(1 湖南工业大学电气与信息工程学院，湖南株洲 412007；

2 国网湖南省电力有限公司株洲供电分公司，湖南株洲 412000)

摘要：微电网群 (MGC) 集合了多个子网的电力资源，大量分布式电源 (DG) 的接入给系统的经济调度和功率均分带来巨大挑战，也削弱了系统的惯性。基于分布式控制，提出了一种微电网群的多目标协同控制，设计了三层协同控制架构。在设备层，利用虚拟同步发电机 (VSG) 模拟惯性；在子网层，利用功率一致性控制，增加了系统的阻尼，实现功率均分和振荡抑制；在网群层，基于等微增率准则，实现网群的经济优化和频率恢复。通过仿真实验，设计了冲击负荷接入切除、通信延时以及功率限制等算例，证实了所提控制算法的有效性。

关键词： 微电网群；虚拟同步发电机；分布式控制；频率恢复；功率分配

中图分类号：TM711 文献标识码：A 文章编号：1007-3175(2023)06-0007-07

Distributed Multi-Objective Cooperative Control Method for

Weak-Inertia AC Microgrid Clusters

HE Zhi-yi¹, KUANG Hong-hai¹, YU Xi-qi², CHANG Yu-rui¹, WANG Kai¹

（1 College of Electrical and Information Engineering, Hunan University of Technology, Zhuzhou 412007, China;

2 Zhuzhou Power Supply Branch of State Grid Hunan Electric Power Co.,Ltd, Zhuzhou 412000, China）

Abstract: Microgrid Clusters (MGC) gather the power generation resources of multiple subnets, and the interconnection of a great number of Distributed Generators (DG) will bring large challenges to the economic dispatch and power sharing of the system and also weaken the system inertia. The paper, based on distributed control, proposes a multi-objective cooperative control for MGC and a three-layer cooperative control framework. On the equipment layer, the Virtual Synchronous Generator (VSG) is used to simulate inertia; on the subnet layer, power consistency control is adopted to increase the system damping, which realizes power sharing and oscillation suppression; on the MGC layer,economic optimization and frequency recovery of MGC are realized based on the equal incremental principle. Finally, numerical examples such as impact load access removal, communication delay and power limitation are designed through simulation experiments to verify the effectiveness of the proposed control algorithm.

Key words: microgrid clusters; virtual synchronous generator; distributed control; frequency recovery; power distribution

参考文献

[1] 孟明，陈世超，赵树军，等. 新能源微电网研究综述[J]. 现代电力，2017，34(1)：1-7.

[2] 陈其森，汪湘晋，池伟，等. 多微电网互联系统能量管理方法研究[J] . 电力系统保护与控制，2018，46(11)：83-91.

[3] 曾正，赵荣祥，汤胜清，等. 可再生能源分散接入用先进并网逆变器研究综述[J] . 中国电机工程学报，2013，33(24)：1-12.

[4] GOLSORKHI M S, HILL D J, KARSHENAS H R.Distributed voltage control and power management of networked microgrids[J].IEEE Journal of Emerging and Selected Topics in Power Electronics，2018，6(4)：1892-1902.

[5] BIDRAM A, DAVOUDI A.Hierarchical structure of microgrids control system [J] . IEEE Transactions on Smart Grid，2012，3(4)：1963-1976.

[6] 陈燕东，罗安，龙际根，等. 阻性逆变器并联环流分析及鲁棒下垂多环控制[J] . 中国电机工程学报，2013，33(18)：18-29.

[7] 吕志鹏，苏剑，李蕊，等. 不同功率等级微源逆变器并联控制新方法[J] . 电工技术学报，2013，28(7)：191-198.

[8] SUN Yao, HOU Xiaochao, YANG Jian, et al.New perspectives on droop control in AC microgrid[J].IEEE Transactions on Industrial Electronics， 2017，64(7)：5741-5745.

[9] 王尧，李欢欢，鞠立伟，等. 面向智能化调度的微网群能量耦合协调控制策略及仿真分析[J] . 电网技术，2018，42(7)：2232-2239.

[10] 戴志辉，陈冰研，谢军，等. 含多微网的主动配电网分层调度策略[J] . 电力系统保护与控制，2018，46(18)：121-127.

[11] SIMPSON-PORCO J W, SHAFIEE Q, DORFLER F, et al.Secondary frequency and voltage control of islanded microgrids via distributed averaging[J].IEEE Transactions on Industrial Electronics， 2015， 62(11)：7025-7038.

[12] SHAFIEE Q, GUERRERO J M, VASQUEZ J C.DistributedSecondary Control for Islanded Microgrids—A Novel Approach[J].IEEE Transactions on Power Electronics， 2014，29(2)：1018-1031.

[13] BAZMOHAMMADI N, TAHSIRI A, ANVARI-MOGHADDAM A,et al.A hierarchical energy management strategy for interconnected microgrids considering uncertainty[J].International Journal of Electrical Power and Energy Systems， 2019，109：597-608.

[14] AMOATENG D O, HOSANI M A, ELMOURSI M S, et al.Adaptive voltage and frequency control of islanded multi-microgrids[J].IEEE Transactions on Power Systems， 2018， 33(4)：4454-4465.

[15] WU Xiaoyu, XU Yin, WU Xiangyu, et al.A twolayer distributed cooperative control method for islanded networked microgrid systems[J].IEEE Transactions on Smart Grid， 2020，11(2)：942-957.

[16] MOAYEDI S, DAVOUDI A.Distributed Tertiary Control of DC Microgrid Clusters[J].IEEE Transactions on Power Electronics， 2016，31(2)：1717-1733.

[17] EIDSON D B, ILIC M D.Advanced generation control with economic dispatch[C]//Proceedings of the IEEE Conference on Decision and Control， 1995：3450-3458.

[18] LAI Jingang, LU Xiaoqing, YU Xinghuo, et al.Distributed voltage regulation for cyberphysical microgrids with coupling delays and slow switching topologies[J].IEEE Transactions on Systems， Man， and Cybernetics: Systems，2020， 50(1)：100-110.

[19] 杜威，姜齐荣，陈蛟瑞. 微电网电源的虚拟惯性频率控制策略[J]. 电力系统自动化，2011，35(23)：26-31.

[20] 吕志鹏，盛万兴，钟庆昌，等. 虚拟同步发电机及其在微电网中的应用[J] . 中国电机工程学报，2014，34(16)：2591-2603.

[21] 朱慧敏，苑舜. 基于功率解耦控制的虚拟同步发电机功率振荡抑制策略[J] . 智慧电力，2020，48(4)：70-76.

[22] SHUAI Zhikang , HUANG Wen , SHEN Zheng John, et al.Active Power Oscillation and Suppression Techniques Between Two Parallel Synchronverters During Load Fluctuations[J].IEEE Transactions on Power Electronics，2020，35(4)：4127-4142.

[23] CHOOPANI M, HOSSEINAIN S H, VAHIDI B.A novel comprehensive method to enhance stability of multi-VSG grids[J].International Journal of Electrical Power & Energy Systems， 2019，104：502-514.

[24] FU Siqi, SUN Yao, LIU Zhangjie, et al.Power oscillation suppression in multi-VSG grid with adaptive virtual inertia[J].International Journal of Electrical Power & Energy Systems， 2022，135：107472.

[25] 李树山，李刚，程春田，等. 动态机组组合与等微增率法相结合的火电机组节能负荷分配方法[J] .中国电机工程学报， 2011，31(7)：41-47.

返回索引列表

Article retrieval

文章检索

弱惯性交流微电网群的分布式多目标协同控制方法