一种提升交直流混合微电网动态特性的综合惯量控制方法

doi:10.19595/j.cnki.1000-6753.tces.181573

Abstract
Figure/Table
References
Related Citation (5)

Download: PDF (30591 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Hybrid AC-DC microgrid has the problems of power balance and low inertia, thus this paper proposes a comprehensive inertia control method considering the inertial support capability of wind turbine generator (WTG) and energy storage (ES). Firstly, based on the configuration of hybrid AC-DC microgrid, the comprehensive inertia control principle is briefly analyzed. Secondly, the expression of the inertia power provided by WTG and ES in the hybrid microgrid is deduced in detail, and the WTG-ES combined inertia control strategy is proposed. Regarding the power balance in hybrid microgrid, based on the coupling relationship between the AC frequency and DC voltage, the expression of inertial transmission power of interconnecting converter is derived. Finally, a hybrid AC-DC microgrid model is built in Matlab/Simulink to verify the proposed comprehensive inertia control strategy. The simulation results show that the proposed control strategy can make full use of the large inertia characteristics, and participates in the frequency and voltage regulation with WTG to provide inertial support for the system. This strategy can maintain the power balance in hybrid microgrid while ensuring the power quality at both sides, which improves the dynamic performance the hybrid microgrid.

Key words： Hybrid AC-DC microgrid inertia control interconnecting converter wind turbine generator and energy storage combined system

Received: 08 October 2018 Published: 17 January 2020

PACS:

TM712

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Shi Jingrong
	Li Yong
	He Li
	Wang Ziya
	Jiao Shiqing

Cite this article:

Shi Jingrong,Li Yong,He Li等. A Comprehensive Inertia Control Method for Improving the Dynamic Characteristics of Hybrid AC-DC Microgrid[J]. Transactions of China Electrotechnical Society, 2020, 35(2): 337-345.

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.181573 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/I2/337

[1] 赵卓立, 杨苹, 郑成立, 等. 微电网动态稳定性研究述评[J]. 电工技术学报, 2017, 32(10): 111-122.
Zhao Zhuoli, Yang Ping, Zheng Chengli, et al.Review on dynamic stability research of microgrid[J]. Transactions of China Electrotechnical Society, 2017, 32(10): 111-122.
[2] Nejabatkhah F, Li Yunwei.Overview of power management strategies of hybrid AC/DC microgrid[J]. IEEE Transactions on Power Electronics, 2015, 30(12): 7072-7089.
[3] 盛德刚, 徐运兵, 王晓丹, 等. 孤岛运行模式下的低压微电网控制策略[J]. 电气技术, 2018, 19(1): 34-39.
Sheng Degang, Xu Yunbing, Wang Xiaodan, et al.Control strategy of low voltage micro-grid in island mode[J]. Electrical Engineering, 2018, 19(1): 34-39.
[4] Malik S M, Ai Xin, Sun Yingyun, et al.Voltage and frequency control strategies of hybrid AC/DC microgrid: a review[J]. IET Generation Transmission & Distribution, 2017, 11(2): 303-313.
[5] 支娜, 张辉, 肖曦. 提高直流微电网动态特性的改进下垂控制策略研究[J]. 电工技术学报, 2016, 31(3): 31-39.
Zhi Na, Zhang Hui, Xiao Xi.Research on the improved droop control strategy for improving the dynamic characteristics of DC microgrid[J]. Transactions of China Electrotechnical Society, 2016, 31(3): 31-39.
[6] 张波, 颜湘武, 黄毅斌, 等. 虚拟同步机多机并联稳定控制及其惯量匹配方法[J]. 电工技术学报, 2017, 32(10): 42-52.
Zhang Bo, Yan Xiangwu, Huang Yibin, et al.Stability control and inertia matching method of multi-parallel virtual synchronous generators[J]. Transactions of China Electrotechnical Society, 2017, 32(10): 42-52.
[7] Dreidy M, Mokhlis H, Mekhilef S.Inertia response and frequency control techniques for renewable energy sources: a review[J]. Renewable & Sustainable Energy Reviews, 2017, 69: 144-155.
[8] 张冠锋, 杨俊友, 孙峰, 等. 基于虚拟惯量和频率下垂控制的双馈风电机组一次调频策略[J]. 电工技术学报, 2017, 32(22): 225-232.
Zhang Guanfeng, Yang Junyou, Sun Feng, et al.Primary frequency regulation strategy of DFIG based on virtual inertia and frequency droop control[J]. Transactions of China Electrotechnical Society, 2017, 32(22): 225-232.
[9] 严干贵, 王昱博, 钟诚, 等. 风储联合系统调频控制策略研究[J]. 电力建设, 2016, 37(12): 55-60.
Yan Gangui, Wang Yubo, Zhong Cheng, et al.Frequency control strategy for wind storage com- bined system[J]. Electric Power Construction, 2016, 37(12): 55-60.
[10] Li Yong, He Li, Liu Fang, et al.A dynamic coordinated control strategy of WTG-ES combined system for short-term frequency support[J]. Renewable Energy, 2018, 119: 1-11.
[11] 石荣亮, 张兴, 徐海珍, 等. 光储柴独立微电网中的虚拟同步发电机控制策略[J]. 电工技术学报, 2017, 32(23):127-139.
Shi Rongliang, Zhang Xing, Xu Haizhen, et al.A control strategy for islanded photovoltaic-battery- diesel microgrid based on virtual synchronous generator[J]. Transactions of China Electrotechnical Society, 2017, 32(23): 127-139.
[12] 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.
Du Wei, Jiang Qirong, Chen Jiaorui.Design and application of reactive power control system for wind farm[J]. Automation of Electric Power Systems, 2011, 35(23): 26-31.
[13] 朱晓荣, 蔡杰, 王毅, 等. 风储直流微网虚拟惯性控制技术[J]. 中国电机工程学报, 2016, 36(1): 49-58.
Zhu Xiaorong, Cai Jie, Wang Yi, et al.Virtual inertia control of wind-battery-based DC microgrid[J]. Pro- ceedings of the CSEE, 2016, 36(1): 49-58.
[14] 朱晓荣, 谢志云, 荆树志. 直流微电网虚拟惯性控制及其稳定性分析[J]. 电网技术, 2017, 41(12): 3884-3891.
Zhu Xiaorong, Xie Zhiyun, Jin Shuzhi.Virtual inertia control and stability analysis of DC microgrid[J]. Power System Technology, 2017, 41(12): 3884-3891.
[15] 王毅, 黑阳, 付媛, 等. 基于变下垂系数的直流配电网自适应虚拟惯性控制[J]. 电力系统自动化, 2017, 41(8): 116-124.
Wang Yi, Hei Yang, Fu Yuan, et al.Adaptive virtual inertia control of dc distribution network based on variable droop coefficient[J]. Automation of Electric Power Systems, 2017, 41(8): 116-124.
[16] 于明, 王毅, 李永刚. 基于预测方法的直流微网混合储能虚拟惯性控制[J]. 电网技术, 2017, 41(5): 1526-1532.
Yu Ming, Wang Yi, Li Yonggang.Virtual inertia control of hybrid energy storage in dc microgrid based on predictive method[J]. Power System Tech- nology, 2017, 41(5): 1526-1532.
[17] Peyghami S, Mokhtari H, Blaabjerg F.Autonomous operation of a hybrid AC/DC microgrid with multiple interlinking converters[J]. IEEE Transactions on Smart Grid, 2018, 9(6): 6480-6488.
[18] 祝钧, 李瑞生, 毋炳鑫, 等. 交直流混合微电网接口变换器虚拟同步发电机控制方法[J]. 电力系统保护与控制, 2017, 45(11): 28-34.
Zhu Jun, Li Ruisheng, Wu Bingxin, et al.Virtual synchronous generator operation of interlinking converter between AC and DC microgrid[J]. Power System Protection and Control, 2017, 45(11): 28-34.
[19] Wang Junjun, Jin Chi, Wang Peng.A uniform control strategy for the interlinking converter in hierarchical controlled hybrid AC/DC microgrid[J]. IEEE Transa- ctions on Industrial Electronics, 2018, 65(8): 6188-6197.
[20] Li Yong, He Li, Liu Fang, et al.Flexible voltage control strategy considering distributed energy storages for dc distribution network[J]. IEEE Transactions on Smart Grid, 2019, 10(1): 163-172.