Analysis on Dynamic Performance of Droop Control for Multi-terminal VSC Based DC Distribution System

被引：0
作者：
Zhao X. [1 ]
Peng K. [1 ]
Zhang X. [1 ]
Xu B. [1 ]
Chen Y. [1 ]
Zhao Y. [1 ]
机构：
[1] School of Electrical and Electronic Engineering, Shandong University of Technology, Zibo
来源：
Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2019年 / 43卷 / 02期
关键词：
Droop control; Dynamic characteristics; Multi-terminal voltage source converter based DC distribution system; Small signal stability;
D O I：
10.7500/AEPS20180211005
中图分类号：
学科分类号：
摘要：
Multi-terminal voltage source converter (VSC) based DC distribution system is better to meet the requirements of the development of future urban distribution system, while its flexible operation modes also pose new challenges to the control system. For different characteristics of droop control of converter, dynamic characteristics of the control system such as overshoot and damping ratio are analyzed theoretically. The influence of droop coefficient on the dynamic performance of converter power output is discussed, and small signal stability analysis is carried out. DIgSILENT simulation software is used to build a modified IEEE 33-node test system. The theoretical analysis and simulation result are consistent, and it shows that Idc-Udc and Q-Uac droop control strategies are superior to other droop strategies in terms of dynamic characteristics and high level of safety and stability, and it is more suitable to multi-terminal VSC based DC distribution system. © 2019 Automation of Electric Power Systems Press.
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页码：89 / 96
页数：7
相关论文
共 28 条
  • [1] Huang J., Wei C., Wen A., Hierarchical coordinated control strategy for flexible DC distribution network considering uncertainties of source and load, Automation of Electric Power Systems, 42, 6, pp. 106-112, (2018)
  • [2] Ye S., Wei G., Ma L., Et al., Power supply capability evaluation of DC distribution network with distributed generators, Automation of Electric Power Systems, 41, 9, pp. 58-64, (2017)
  • [3] Sun F., Ma J., Zhu J., Et al., Optimized dispatching and control method of droop parameters with assurance of small-signal stability in DC distribution network, Automation of Electric Power Systems, 42, 3, pp. 48-55, (2018)
  • [4] Wang Y., Hei Y., Fu Y., Et al., Adaptive virtual inertia control of DC distribution network based on variable droop coefficient, Automation of Electric Power Systems, 41, 8, pp. 116-124, (2017)
  • [5] Li B., He J., Tian J., Et al., DC fault analysis for modular multilevel converter-based system, Journal of Modern Power Systems and Clean Energy, 5, 2, pp. 275-282, (2017)
  • [6] Gu Y., Tang G., Huang X., Et al., Dynamic characteristic analysis of hybrid AC/DC power grid with multi-terminal HVDC based on modular multilevel converter, Automation of Electric Power Systems, 37, 15, pp. 27-34, (2013)
  • [7] Wang J., Wang Z., Li X., Et al., Simulation to study the dynamic performance of multi-infeed AC/DC power systems including UHVDC, Automation of Electric Power Systems, 31, 11, pp. 97-102, (2007)
  • [8] Guo C., Ning L., Liu W., Et al., Dynamics investigation of VSC-HVDC with frequency based synchronization control under weak AC grid condition, Proceedings of the CSEE, 37, 15, pp. 4344-4354, (2017)
  • [9] Zhi N., Zhang H., Xiao X., Research on the improved droop control strategy for improving the dynamic characteristics of DC microgrid, Transactions of China Electrotechnical Society, 31, 3, pp. 31-39, (2016)
  • [10] Radwan A.A.A., Mohamed A.R.I., Assessment and mitigation of interaction dynamics in hybrid AC/Dc distribution generation systems, IEEE Transactions on Smart Grid, 3, 3, pp. 1382-1393, (2012)
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