含有弱交流电网的电压源换流站直流电网分级控制策略研究

Abstract
Figure/Table
References
Related Citation (13)

Download: PDF (35115 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Scenario of Passive grid connecting two VSC-HVDC transmission systems has been investigated in this paper. A control method with hierarchy is proposed. VSCs have been grouped based on a hierarchy of various categories. Distance which denotes the number of electrical connections between strong grid and VSC station is used to define the hierarchy used in this paper. Different control methods are used in different categories to regulate different variables. This method can be used in DC grids with many VSCs grouped into a hierarchy of various categories. This paper presents a multilayer DC system with a passive AC grid inside the DC grid. The control principle of VSCs connected with the passive grid is investigated. The AC voltage control and active power control is assigned to different VSC based on its power flow in the inner passive AC grid. Also a DC voltage control is integrated in the hierarchy control system to improve the dynamic instability.

Key words： VSC-HVDC DC grid hierarchical control passive AC grid

Received: 31 July 2018 Published: 19 March 2019

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Yu Yongsheng
	Feng Yanhui
	Qiu Yingning
	Jia Jianhua
	Xiao Jianchao

Cite this article:

Yu Yongsheng,Feng Yanhui,Qiu Yingning等. Research on control method of voltage source converter based DC grid with weak AC system integrated[J]. Electrical Engineering, 2019, 20(3): 42-49.

URL:

http://dqjs.cesmedia.cn/EN/Y2019/V20/I3/42

[1] 温家良, 吴锐, 彭畅, 等. 直流电网在中国的应用前景分析[J]. 中国电机工程学报, 2012, 32(13): 7-12.
[2] 李志晗, 张英敏, 李兴源. 基于H_∞ 回路成形法的VSC-HVDC附加鲁棒阻尼控制器设计[J]. 电力系统保护与控制, 2018, 46(2): 124-130.
[3] 唐欣, 张凯峰, 许强, 等. 提高VSC-HVDC系统供电无源网络的传输容量的控制方法[J]. 电工技术学报, 2016, 31(5): 44-51.
[4] Moghaddam Mohammadreza Fakhari Arani. Yasser Abdel-Rady I.mohamed.analysis and performance enhancement of Vector-Controlled VSC in HVDC links connected to very weak grids[J]. IEEE Transactions on Power Systems, 2017, 32(1): 684-693.
[5] 李国庆, 孙银锋, 吴学光. 柔性直流输电稳定性分析及控制参数整定[J]. 电工技术学报, 2017, 32(6): 231-239.
[6] 郭玥, 张红斌, 杨卫红, 等. 柔性直流输电在城市配电网应用中的仿真研究[J]. 电气技术, 2015, 16(6): 14-19.
[7] 杨小磊. 多端柔性直流输电系统接入某海岛电网的研究[J]. 电气技术, 2015, 16(5): 12-16, 21.
[8] 杨超, 梁海平, 顾雪平, 等. 基于电压源换流器HVDC联网的受端电网扩展黑启动方案[J]. 电工技术学报, 2017, 32(22): 207-215.
[9] Zhang Lidong, Harnefors L, Nee H P.Modeling and control of VSC-HVDC links connected to island systems[J]. IEEE Transactions on Power Systems, 2011, 26(2): 783-793.
[10] Zhang Lidong, Harnefors L, Nee H P.Interconnection of two very weak AC systems by VSC-HVDC links using Power-Synchronization control[J]. IEEE Transa- ctions on Power Systems, 2011, 26(1): 344-355.
[11] 李琦, 宋强, 刘文华, 等. 基于柔性直流输电的风电场并网故障穿越协调控制策略[J]. 电网技术, 2014, 38(7): 1739-1745.
[12] 黄云辉, 周翩, 王龙飞. 弱电网下基于矢量控制的并网变换器功率控制稳定性[J]. 电力系统自动化, 2016, 40(14): 93-99.
[13] 姚良忠, 吴婧, 王志冰, 等. 未来高压直流电网发展形态分析[J]. 中国电机工程学报, 2014, 12(34): 6007-6020.
[14] 汤广福. 基于电压源换流器的高压直流输电技术[M]. 北京: 中国电力出版社, 2010.
[15] 于永生, 冯延晖, 江红鑫, 等. 一种风电场经柔性直流输电并网控制方法改进探讨[J]. 电网与清洁能源, 2015, 31(7): 81-87, 91.