Virtual synchronous generator control strategy based on bandpass damping power feedback

被引：0
|
作者：
Li M. [1 ]
Wang Y. [1 ]
Xu N. [1 ]
Niu R. [1 ]
Lei W. [1 ]
机构：
[1] State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University
来源：
Wang, Yue (davidwangyue@mail.xjtu.edu.cn) | 2018年 / China Machine Press卷 / 33期
关键词：
active power; damping power; oscillation suppression; Virtual synchronous generator;
D O I：
10.19595/j.cnki.1000-6753.tces.170201
中图分类号：
学科分类号：
摘要：
Damping power feedback is used in virtual synchronous generator (VSG) to restrain power oscillation caused by the virtual inertia of the active power control loop. The traditional damping power feedback strategy with PLL included depends on the measurement of the grid voltage phase, which acts against the control object that VSG makes grid-tied inverter to be a self-synchronizing independent voltage source. The traditional damping power feedback method without PLL included essentially merges the droop control and damping feedback into only one droop control, thus the VSG would not meet the requirements of power oscillation damping and primary frequency regulation of power system at the same time. To address this issue, this paper develops an improved VSG control strategy based on bandpass damping power feedback. The closed loop dynamic characteristics and parameters design process of the improved VSG strategy are also presented. The proposed strategy can remove the effect of damping power feedback channel on the droop control, as a result the primary frequency control and active power allocation performance of VSG can be ensured. Finally, both the simulation and experimental results prove the effectiveness of the proposed method. © 2018, Electrical Technology Press Co. Ltd. All right reserved
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页码：2176 / 2185
页数：9
相关论文
共 24 条
  • [1] Blaabjerg F., Teodorescu R., Et al., Overview of control and grid synchronization for distributed power generation systems, IEEE Transactions on Industrial Electronics, 53, 5, pp. 1398-1409, (2006)
  • [2] Zeng Z., Zhao R., Et al., An overview on advanced grid-connected inverters used for decentralized renewable energy resources, Proceedings of the CSEE, 33, 24, pp. 1-12, (2013)
  • [3] Luo J., Chen Y., Liu Q., Overview of large-scale intermittent new energy grid-connected control technology, Power System Protection and Control, 42, 22, pp. 140-146, (2014)
  • [4] Lu Z., Sheng W., Et al., Virtual synchronous generator and its applications in micro-grid, Proceedings of the CSEE, 34, 16, pp. 2591-2603, (2014)
  • [5] Zhong Q.C., Weiss G., Synchronverters: inverters that mimic synchronous generators, IEEE Transactions on Industrial Electronics, 58, 4, pp. 1259-1267, (2011)
  • [6] Zheng T., Chen L., Et al., Review and prospect of virtual synchronous generator technologies, Automation of Electric Power Systems, 39, 21, pp. 165-175, (2015)
  • [7] Zhang Y., Zhang H., Et al., Control strategy and parameter analysis of distributed inverters based on VSG, Transactions of China Electrotechnical Society, 29, 7, pp. 261-268, (2014)
  • [8] Xiong L., Zhuo F., Et al., Static synchronous generator model: a new perspective to investigate dynamic characteristics and stability issues of grid-tied PWM inverter, IEEE Transactions on Power Electronics, 31, 9, pp. 6264-6280, (2016)
  • [9] Meng J., Shi X., Et al., Control strategy of DER inverter for improving frequency stability of microgrid, Transactions of China Electrotechnical Society, 30, 4, pp. 70-79, (2015)
  • [10] Du W., Jiang Q., Chen J., Frequency control strategy of distributed generations based on virtual inertia in a microgrid, Automation of Electric Power Systems, 35, 23, pp. 26-31, (2011)
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