An Overview of Stability Studies of Grid-forming Voltage Source Converters

被引:0
|
作者
Zhan C. [1 ]
Wu H. [2 ]
Wang X. [3 ]
Tian J. [1 ]
Wang X. [3 ]
Lu Y. [1 ]
机构
[1] NR Electric Co. Ltd., Jiangsu Province, Nanjing
[2] AAU Energy, Aalborg University, Aalborg
[3] Department of Electrical Engineering, KTH Royal Institute of Technology, Stockholm
关键词
grid-forming converter; large-signal transient stability; small-signal stability;
D O I
10.13334/j.0258-8013.pcsee.221995
中图分类号
学科分类号
摘要
Unlike grid-following converters, the grid-forming converter is operated as a synchronous voltage source, which can effectively improve the stability of power-electronics-dominated power systems, and hence, has attracted much research attention in recent years. As a basis of the large-scale implementation of grid-forming converters, there should be an in-depth understanding of its stability under different grid strengths as well as different grid disturbances. This article performs a comprehensive overview of the stability studies of grid-forming converters from the perspective of existence of equilibrium points, small-signal stability, and transient stability. On top of this, stabilization control solutions of grid-forming converters are also summarized. In the end, perspectives on the prospects and challenges of stability analysis of grid-forming converters are shared. ©2023 Chin.Soc.for Elec.Eng.
引用
收藏
页码:2339 / 2358
页数:19
相关论文
共 121 条
  • [41] Connection of wind farms to weak AC networks[R], (2016)
  • [42] Short-circuit modeling and system strength.Atlanta,GA,USA:NERC,2018
  • [43] YU Lin, SUN Huadong, ZHAO Bing, Short circuit ratio index analysis and critical short circuit ratio calculation of renewable energy grid-connected system[J], Proceedings of the CSEE, 42, 3, pp. 919-928, (2022)
  • [44] Yunwei LI, KAO C N., An accurate power control strategy for power-electronics-interfaced distributed generation units operating in a low-voltage multibus microgrid[J], IEEE Transactions on Power Electronics, 24, 12, pp. 2977-2988, (2009)
  • [45] XIN Huanhai, GAN Deqiang, JU Ping, Generalized short circuit ratio of power systems with multiple power electronic devices:analysis for various renewable power generations[J], Proceedings of the CSEE, 40, 17, pp. 5516-5526, (2020)
  • [46] LIU Qu, Power system stability and excitation control[M], (2007)
  • [47] NI Yixin, CHEN Shousun, ZHANG Baolin, Theory and analysis of power system dynamics[M], (2002)
  • [48] HUANG Linbin, XIN Huanhai, WANG Zhen, Damping low-frequency oscillations through VSC-HVDC stations operated as virtual synchronous machines[J], IEEE Transactions on Power Electronics, 34, 6, pp. 5803-5818, (2019)
  • [49] LIU Ni, ZHANG Changhua, LIAO Li, Analysis on virtual torque and oscillation instability mechanism of virtual synchronous generator with reactive power-voltage controller[J], Automation of Electric Power Systems, 43, 6, pp. 107-115, (2019)
  • [50] MA Yilin, YANG Huan, QU Zisen, Design method for improving damping characteristics of virtual synchronous generator[J], Power System Technology, 45, 1, pp. 269-275, (2021)