Application Study on VSG Control Strategy of Back-to-Back VSC-HVDC

Ao WANG; Zheng CHANG; Xin AI; Dan ZOU; Kunyu WANG

doi:10.16513/j.cnki.10-1427/tk.2018.05.007

TSINGHUA JOURNALS HOME

Source Journal for Chinese Scientific and Technical Papers and Citations

RCCSE Chinese Core Academic Journals

Classification Catalogue of High Quality Scientific Journals in the field of Energy and Power

Classification Catalogue of High Quality Scientific Journals in Coal Field

PDF(1521 KB)

Distributed Energy ›› 2018, Vol. 3 ›› Issue (5) : 40-47. DOI: 10.16513/j.cnki.10-1427/tk.2018.05.007

Application Technology

Application Study on VSG Control Strategy of Back-to-Back VSC-HVDC

Ao WANG ¹ ,
Zheng CHANG ² ,
Xin AI ³ ,
Dan ZOU ³ ,
Kunyu WANG ³

Author information +

History +

Abstract

With grid-connection of plenty of distributed generation, stability of grid operation will be affected, in order to restrain the closing current of 220 kV power grid and improve the reliability of the power supply, this paper presents double back-to-back voltage source converter based high voltage direct current transmission (VSC-HVDC) device, Using back-to-back VSC-HVDC sets up AC/DC hybrid network, and research on the control strategy of VSC-HVDC.The paper used voltage source converter with three-phase two-level topology and double-loop current control strategy based on current inner-loop control. The inner-loop used d/q axis decouple control principle based on Park transformation and the outer-loop used droop control and VSG control respectively. By building circuit model with PSCAD，analyze the fluctuation of active power, current and DC voltage with different control strategies when a fault occurs. The simulation result verified the superiority of virtual synchronous generator control strategy. Compared with traditional VSC-HVDC control strategy，the virtual synchronous generator control strategy has the ability of inertia and damping power oscillation in dynamic process and can provide frequency support for power grid. VSG can be better used to provide the inertia of the system and improve the stability of the system.

Key words

back-to-back voltage source converter based HVDC / AC/DC hybrid network / DC voltage droop control / virtual synchronous generator (VSG)

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

Ao WANG , Zheng CHANG , Xin AI , et al . Application Study on VSG Control Strategy of Back-to-Back VSC-HVDC[J]. Distributed Energy Resources. 2018, 3(5): 40-47 https://doi.org/10.16513/j.cnki.10-1427/tk.2018.05.007

References

List( Publishing order | Descend order by publishing year | Descend order by cited within ) Chart analysis

[1]	杨少坤，尹明，刘文丽. 背靠背型柔性直流输电的建模及其控制[J]. 华北电力大学学报(自然科学版), 2007, 34(5): 44-47. YANG Shaokun, YIN Ming, LIU Wenli. Study on modeling and control of back-to-back VSC-HVDC[J]. Journal of North China Electric Power University: Natural Science Edition, 2007, 34 (5): 44-47. Cited in this article [1]

[2]	赵成勇，郭春义，刘文静. 混合直流输电[M]. 北京：科学出版社，2014. Cited in this article [1]

[3]	孙华东. 多端高压直流输电系统[M]. 北京：中国电力出版社，2015. Cited in this article [1]

[4]	张桂斌. 新型直流输电及其相关技术研究[D]. 杭州：浙江大学，2001. ZHANG Guibin. Study on new HVDC transmission and related technologies[D]. Hangzhou: Zhejiang University, 2001. Cited in this article [1]

[5]	BECK H P, HESSE R. Virtual synchronous machine[C]// International Conference on Electrical Power Quality and Utilisation. Barcelona, Brazil: IEEE, 2007: 1-6. Cited in this article [1]

[6]	ZHONG Q C, WEISS G. Synchronverters: inverters that mimic synchronous generators[J]. IEEE Transactions on Industrial Electronics, 2011, 58(4): 1259-1267. Cited in this article [1]

[7]	郑天文，陈来军，陈天一，等. 虚拟同步发电机技术及展望[J]. 电力系统自动化，2015, 39(21): 165-175. ZHENG Tianwen, CHEN Laijun, CHEN Tianyi, et al. Technology and Prospect of virtual synchronous generator[J]. Automation of Electric Power Systems, 2015, 39(21): 165-175. Cited in this article [1]

[8]	程冲，杨欢，曾正，等. 虚拟同步发电机的转子惯量自适应控制方法[J]. 电力系统自动化，2015, 39(19): 82-89. CHENG Chong, YANG Huan, ZENG Zheng, et al. Adaptive control method for rotor inertia of virtual synchronous generator[J]. Automation of Electric Power Systems, 2015, 39(19): 82-89. Cited in this article [1]

[9]	吕志鹏，盛万兴，钟庆昌，等. 虚拟同步发电机及其在微电网中的应用[J]. 中国电机工程学报，2014, 34(16): 2591-2603. LÜ Zhipeng, SHENG Wanxing, ZHONG Qingchang, et al. Virtual synchronous generator and its application in micro power grid[J]. Proceedings of the CSEE, 2014, 34(16): 2591-2603. Cited in this article [1]

[10]	魏亚龙，张辉，孙凯，等. 基于虚拟功率的虚拟同步发电机预同步方法[J]. 电力系统自动化，2016, 40(12): 124-129. WEI Yalong, ZHANG Hui, SUN Kai, et al. Presynchronization method of virtual synchronous generator based on virtual power[J]. Automation of Electric Power Systems, 2016, 40(12): 124-129. Cited in this article [1]

[11]

李宇骏，杨勇，李颖毅，等. 提高电力系统惯性水平的风电场和VSC-HVDC协同控制策略[J]. 中国电机工程学报，2014, 34(34): 6021-6031.

Yujun

, YANG

Yong

, LI

Yingyi

, et al. Wind farm and VSC-HVDC coordinated control strategy to improve the inertial level of power system[J]. Proceedings of the CSEE, 2014, 34(34): 6021-6031.

Cited in this article [1]

[12]	葛乐，陆文涛，袁晓冬，等. 背靠背柔性直流互联的有源配电网合环优化运行[J]. 电力系统自动化，2017, 41(6): 135-141. GE Yue, LU Wentao, YUAN Xiaodong, et al. Close loop optimal operation of active distribution network based on back-to-back VSC-HVDC[J]. Automation of Electric Power Systems, 2017, 41(6): 135-141. Cited in this article [1]

[13]	余潇潇，张璞，张凯. 柔性直流背靠背装置在北京配电网中的应用[J]. 电力建设，2016, 37(5): 132-137. YU Xiaoxiao, ZHANG Pu, ZHANG Kai. Application of back-to-back VSC-HVDC device in the distribution network in Beijing[J]. Electric Power Construction, 2016, 37(5): 132-137. Cited in this article [1]

[14]	金阳忻. 直流配网电压控制及电压稳定性研究[D]. 杭州：浙江大学，2016. JIN Yangxin. Study on voltage control and voltage stability of DC distribution network[D]. Hangzhou: Zhejiang University, 2016. Cited in this article [2]

[15]	唐庚，徐政，刘昇，等. 适用于多端柔性直流输电系统的新型直流电压控制策略[J]. 电力系统自动化，2013, 37(15): 125-132. TANG Geng, XU Zheng, LIU Sheng, et al. A new DC voltage control strategy applied to the VSC-MTDC system[J]. Automation of Electric Power Systems, 2013, 37 (15): 125-132. Cited in this article [1]

[16]	高丙团，夏超鹏，张磊，等. 基于虚拟同步电机技术的VSC-HVDC整流侧建模及参数设计[J]. 中国电机工程学报，2017, 37(2): 534-543. GAO Bingtuan, XIA Chaopeng, ZHANG Lei, et al. VSC-HVDC rectifier modeling and parameter design based on VSG technology[J]. Proceedings of the CSEE, 2017, 37(2): 534-543. Cited in this article [1]

[17]	MIGUEL T, LUIZ A C L. Virtual synchronous generator: a control strategy to improve dynamic frequency control in autonomous power systems[J]. Energy and Power Engineering, 2013, 5(2): 32-38. Cited in this article [1]

[18]	管敏渊，张浩，楼平，等. 柔性直流输电换流站的同步电机模拟特性分析[J]. 电网技术，2016, 40(6): 1743-1750. GUAN Minyuan, ZHANG Hao, LOU Ping, et al. Research on characteristics of synchronous generator of VSC-HVDC converter station[J]. Power System Technology, 2016, 40(6): 1743-1750. Cited in this article [1]

[19]	吴恒，阮新波，杨东升，等. 虚拟同步发电机功率环的建模与参数设计[J]. 中国电机工程学报，2015, 35(24): 6508-6518. WU Heng, RUAN Xinbo, YANG Dongsheng, et al. Modeling and parameter design of power loop of virtual synchronous generator[J]. Proceedings of the CSEE, 2015, 35(24): 6508-6518. Cited in this article [1]

[20]	王聪聪，肖伸平. 改进下垂控制在三相三电平PWM整流器中的应用[J]. 分布式能源，2017, 2(5): 24-29. WANG Congcong, XIAO Shenping. Application of improved droop control in three-phase three-level PWM rectifier[J]. Distributed Energy, 2017, 2(5): 24-29. Cited in this article [1]