考虑构网型和跟网型变流器的孤岛微电网小信号稳定性分析

doi:10.3969/j.issn.2097-0706.2024.02.002

综合智慧能源 ›› 2024, Vol. 46 ›› Issue (2): 12-18.doi: 10.3969/j.issn.2097-0706.2024.02.002

考虑构网型和跟网型变流器的孤岛微电网小信号稳定性分析

张心怡¹(), 杨波²()

1.德国柏林工业大学电气工程与计算机科学学院，柏林 10587
2.东北大学信息科学与工程学院，沈阳 110167

收稿日期:2023-03-31 修回日期:2023-05-09 出版日期:2024-02-25 发布日期:2023-08-21
作者简介:张心怡（1993），女，博士生，从事微电网建模与稳定性分析、电动汽车充电站设计及稳定性等方面的研究，xinyi.zhang.2@campus.tu-berlin.de；
杨波（1976），男，高级工程师，从事新能源、物联网、电气控制和电力通信技术等方面的研究，yangbo@ise.neu.edu.cn。
基金资助:
国家自然科学基金项目(U22B20115)

Stability analysis on islanded microgrids with grid-forming and grid-following converters

ZHANG Xinyi¹(), YANG Bo²()

1. Electrical Engineering and Computer Science, Technische Universit?t Berlin, Berlin 10587, Germany
2. College of Information Science and Engineering，Northeast University, Shenyang 110167, China

Received:2023-03-31 Revised:2023-05-09 Online:2024-02-25 Published:2023-08-21
Supported by:
National Natural Science Foundation of China(U22B20115)

摘要/Abstract

摘要：

由电力电子设备主导的孤岛微电网面临系统惯量小、无频率支持而导致的稳定性问题，恒功率负荷的渗透也加剧了系统的失稳风险。研究了由构网型变流器和跟网型变流器为主导的，计及恒功率负荷的孤岛微电网稳定性。首先，建立了孤岛微电网系统的全阶小信号模型，通过特征值分析法研究了构网型变流器控制中下垂系数对稳定性的影响并得到了下垂系数的数值上界；其次，通过参与因子法揭示了系统参数和控制参数对小信号稳定性的影响；最后，在Matlab Simulink中建立了该孤岛微电网的开关模型，仿真验证了小信号分析结果的准确性。

关键词: 构网型变流器, 跟网型变流器, 孤岛微电网, 恒功率负荷, 小信号稳定性, 下垂系数, 新型电力系统

Abstract:

There is stability problem in islanded microgrids dominated by electronic devices resulting from low system inertia and no frequency support，which is aggravated by constant-power load. Thus， the islanded microgrids with grid-forming and grid-following converters are studied with constant-power load taken into consideration. First， a small-signal model of a microgrid power system is developed. And the upper limit of the grid-forming converters' droop coefficient is obtained from the study on the impacts of droop coefficients on the stability by eigenvalue analysis. Then， the influences of system parameters and control parameters on the stability of small signals are analysed by participation factor. Finally， the analytical results are examined by the switching-function model constructed in Matlab Simulink.

Key words: grid-forming converter, grid-following converter, islanded microgrid, constant power load, small-signal stability, droop coefficient, new power system

中图分类号:

TM712

张心怡, 杨波. 考虑构网型和跟网型变流器的孤岛微电网小信号稳定性分析[J]. 综合智慧能源, 2024, 46(2): 12-18.

ZHANG Xinyi, YANG Bo. Stability analysis on islanded microgrids with grid-forming and grid-following converters[J]. Integrated Intelligent Energy, 2024, 46(2): 12-18.

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参考文献 21

[1]	黄雨涵, 丁涛, 李雨婷, 等. 碳中和背景下能源低碳化技术综述及对新型电力系统发展的启示[J]. 中国电机工程学报, 2021, 41(S1):28-51.
	HUANG Yuhan, DING Tao, LI Yuting, et al. Decarbonization technologies and inspirations for the development of novel power systems in the context of carbon neutrality[J]. Proceedings of the CSEE, 2021, 41(S1):28-51.
[2]	王鹤, 李国庆. 含多种分布式电源的微电网控制策略[J]. 电力自动化设备, 2012, 32(5):19-23.
	WANG He, LI Guoqing. Control strategy of microgrid with different DG types[J]. Electric Power Automation Equipment, 2012, 32(5):19-23.
[3]	AWAL M A, HUSAIN I. Unified virtual oscillator control for grid-forming and grid-following converters[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020, 9(4): 4573-4586. doi: 10.1109/JESTPE.2020.3025748
[4]	ROOS M H, NGUYEN P H, MORREN J, et al. Stability analysis of microgrid islanding transients based on interconnected dissipative subsystems[J]. IEEE Transactions on Smart Grid, 2021, 12(6):4655-4667. doi: 10.1109/TSG.2021.3100396
[5]	许诘翊, 刘威, 刘树, 等. 电力系统变流器构网控制技术的现状与发展趋势[J]. 电网技术, 2022, 46(9):3586-3595.
	XU Jieyi, LIU Wei, LIU Shu, et al. Current state and development trends of power system converter grid-forming control technology[J]. Power System Technology, 2022, 46(9):3586-3595.
[6]	余果, 吴军, 夏热, 等. 构网型变流器技术的发展现状与趋势研究[J]. 综合智慧能源, 2022, 44(9):65-70. doi: 10.3969/j.issn.2097-0706.2022.09.009
	YU Guo, WU Jun, XIA Re, et al. Study on the status quo and development trend of grid-forming converter technology[J]. Integrated Intelligent Energy, 2022, 44(9):65-70. doi: 10.3969/j.issn.2097-0706.2022.09.009
[7]	FU X K, SUN J J, HUANG M, et al. Large-signal stability of grid-forming and grid-following controls in voltage source converter: A comparative study[J]. IEEE Transactions on Power Electronics, 2021, 36(7):7832-7840. doi: 10.1109/TPEL.63
[8]	ROSSO R, WANG X, LISERRE M, et al. Grid-forming converters: Control approaches, grid-synchronization, and future trends—A review[J]. IEEE Open Journal of Industry Applications, 2021, 2:93-109. doi: 10.1109/OJIA.2021.3074028
[9]	ROSERO C X, VELASCO M, MARTI P, et al. Active power sharing and frequency regulation in droop-free control for islanded microgrids under electrical and communication failures[J]. IEEE Transactions on Industrial Electronics, 2020, 67(8):6461-6472. doi: 10.1109/TIE.41
[10]	LIU B J, WU T, LIU Z, et al. A small-AC-signal injection-based decentralized secondary frequency control for droop-controlled islanded microgrids[J]. IEEE Transactions on Power Electronics, 2020, 35(11):11634-11651. doi: 10.1109/TPEL.63
[11]	PATARROYO-MONTENEGRO J F, ANDRADE F, GUERRERO J M, et al. A linear quadratic regulator with optimal reference tracking for three-phase inverter-based islanded microgrids[J]. IEEE Transactions on Power Electronics, 2021, 36(6):7112-7122. doi: 10.1109/TPEL.63
[12]	YAZDANI A, IRAVANI R. Voltage-sourced converters in power systems: Modeling, control, and applications[M]. Hoboken, NJ: IEEE Press/John Wiley, 2010.
[13]	詹长江, 吴恒, 王雄飞, 等. 构网型变流器稳定性研究综述[J]. 中国电机工程学报, 2023, 43(6):2339-2359.
	ZHAN Changjiang, WU Heng, WANG Xiongfei, et al. An overview of stability studies of grid-forming voltage source converters[J]. Proceedings of the CSEE, 2023, 43(6):2339-2359.
[14]	NANDANOORI S P, KUNDU S, DU W, et al. Distributed small-signal stability conditions for inverter-based unbalanced microgrids[J]. IEEE Transactions on Power Systems, 2020, 35(5): 3981-3990. doi: 10.1109/TPWRS.59
[15]	MANRIQUE S, SILVA S, MONTEIRO J, et al. Network modeling influence on small-signal reduced-order models of inverter-based AC microgrids considering virtual impedance[J]. IEEE Transactions on Smart Grid, 2021, 12(1):79-92. doi: 10.1109/TSG.5165411
[16]	曾德银, 姚骏, 张田, 等. 虚拟同步发电机多机并联系统的频率小信号稳定性分析研究[J]. 中国电机工程学报, 2020, 40(7):2048-2061,2385.
	ZENG Deyin, YAO Jun, ZHANG Tian, et al. Research on frequency small-signal stability analysis of multi-parallel virtual synchronous generator-based system[J]. Proceedings of the CSEE, 2020, 40(7):2048-2061,2385.
[17]	CAO W C, MA Y W, WANG F, et al. Low-frequency stability analysis of inverter-based islanded multiple-bus AC microgrids based on terminal characteristics[J]. IEEE Transactions on Smart Grid, 2020, 11(5): 3662-3676. doi: 10.1109/TSG.5165411
[18]	DHEER D K, VIJAY A S, KULKARNI O V, et al. Improvement of stability margin of droop-based islanded microgrids by cascading of lead compensators[J]. IEEE Transactions on Industry Applications, 2019, 55(3): 3241-3251. doi: 10.1109/TIA.28
[19]	刘欣博, 孙晓溪, 宋晓通. 带恒功率负载的交直流混合微电网系统大信号稳定性分析[J]. 电工技术学报, 2021, 36(S1):115-125.
	LIU Xinbo, SUN Xiaoxi, SONG Xiaotong. Large-disturbance stability analysis of hybrid AC/DC microgrid with constant power loads[J]. Transactions of China Electrotechnical Society, 2021, 36(S1):115-125.
[20]	POGAKU N, PRODANOVIC M, GREEN T C. Modeling, analysis and testing of autonomous operation of an inverter-based microgrid[J]. IEEE Transactions on Power Electronics, 2007, 22:613-625. doi: 10.1109/TPEL.2006.890003
[21]	QORIA T, GRUSON F, COLAS F, et al. Critical clearing time determination and enhancement of grid-forming converters embedding virtual impedance as current limitation algorithm[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020, 8(2):1050-1061. doi: 10.1109/JESTPE.6245517

参数	数值	参数	数值
变流器额定容量/(kV·A)	115	V_n/V	400
P_n/kW	100	ω_n/(rad·s^-1)	314
Q_n/（kV·A）	0	L_ft/mH	0.045
L_fg/mH	0.030	C_f/mF	0.7
C_dc/mF	13.0	m_p	1×10^-4
n_q	6×10^-5	F_i,F_v	1
ω_c/(rad·s^-1)	30	R_line/Ω	0.01
L_line/mH	0.100	R_N/Ω	1 000
P_cpl/kW	150	C_dc/mF	5
L_gt/mH	0.100	L_gl/mH	0.002
C_g/mF	1.5	isqref/A	0

考虑构网型和跟网型变流器的孤岛微电网小信号稳定性分析

Stability analysis on islanded microgrids with grid-forming and grid-following converters

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