Active Oscillation Suppression Strategy of Paralleled Virtual Synchronous Generators Based on Transient Electromagnetic Power Compensation

被引：0
|
作者：
Lan Z. [1 ]
Liu Z. [1 ]
He D. [1 ]
Zeng J. [1 ]
Yu X. [1 ]
Long Y. [1 ]
机构：
[1] College of Electrical and Information Engineering, Hunan University of Technology, Hunan Province, Zhuzhou
来源：
Dianwang Jishu/Power System Technology | 2023年 / 47卷 / 01期
基金：
中国国家自然科学基金;
关键词：
active oscillation; root locus analysis; small-signal model; transient electromagnetic power compensation; virtual synchronous generator;
D O I：
10.13335/j.1000-3673.pst.2022.0488
中图分类号：
学科分类号：
摘要：
Virtual synchronous generator (VSG) not only provides the inertia and damping, but also has the problem of active power oscillation, especially in the system with multiple VSGs. This paper firstly establishes a small-signal model of the active power control link of the VSG parallel system. Then, the influence of damping, inertia and impedance parameters on the system stability is analyzed through the root locus. Furthermore, an improved VSG control strategy based on the transient electromagnetic power compensation is proposed. The first-order lag link is used to construct the transient electromagnetic power to increase the equivalent damping of the system under the transient state and realize the active oscillation suppression of the paralleled operation of the VSGs in the microgrid. This strategy reduces the adjustment time and the impulse power of dynamic processes without causing the steady-state deviations. Finally, the correctness and effectiveness of the proposed strategy are verified by the MATLAB/Simulink simulation and the hardware-in-loop experiment on StarSim. © 2023 Power System Technology Press. All rights reserved.
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页码：23 / 30
页数：7
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共 22 条
  • [1] LI Hui, LIU Dong, YAO Danyang, Analysis and reflection on the development of power system towards the goal of carbon emission peak and carbon neutrality[J], Proceedings of the CSEE, 41, 18, pp. 6245-6258, (2021)
  • [2] LU Zhipeng, SHENG Wanxing, LIU Haitao, Application and challenge of virtual synchronous machine technology in power system [J], Proceedings of the CSEE, 37, 2, pp. 349-359, (2017)
  • [3] FATHI A, SHAFIEE Q, BEVRANI H．, Robust frequency control of microgrids using an extended virtual synchronous generator[J], IEEE Transactions on Power Systems, 33, 6, pp. 6289-6297, (2018)
  • [4] KARIMI A, KHAYAT Y, NADERI M, Inertia response improvement in AC microgrids：a fuzzy-based virtual synchronous generator control[J], IEEE Transactions on Power Electronics, 35, 4, pp. 4321-4331, (2020)
  • [5] MENG Xin, LIU Jinjun, Zeng LIU, A generalized droop control for grid-supporting inverter based on comparison between traditional droop control and virtual synchronous generator control[J], IEEE Transactions on Power Electronics, 34, 6, pp. 5416-5438, (2019)
  • [6] DU Wenjuan, FU Qiang, WANG Haifeng, Power system small-signal angular stability affected by virtual synchronous generators[J], IEEE Transactions on Power Systems, 34, 4, pp. 3209-3219, (2019)
  • [7] YING Jie, YUAN Xiaoming, HU Jiabing, Impact of inertia control of DFIG-based WT on electromechanical oscillation damping of SG[J], IEEE Transactions on Power Systems, 33, 3, pp. 3450-3459, (2018)
  • [8] ZHAO Ensheng, HAN Yang, ZHOU Siyu, Review and prospect of inertia and damping simulation technologies of microgrids[J], Proceedings of the CSEE, 42, 4, pp. 1413-1427, (2022)
  • [9] SHI Kai, SONG Wentao, GE Huilin, Transient analysis of microgrids with parallel synchronous generators and virtual synchronous generators[J], IEEE Transactions on Energy Conversion, 35, 1, pp. 95-105, (2020)
  • [10] ZENG Deyin, YAO Jun, ZHANG Tian, Research on frequency small-signal stability analysis of multi-parallel virtual synchronous generator-based system[J], Proceedings of the CSEE, 40, 7, pp. 2048-2061, (2020)
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