级联H桥型SVG直流侧电压平衡控制方法

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (2059 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The cascaded H-bridge static var generator (SVG) has been widely regarded as one of the best schemes for large capacity reactive power compensation devices.And the necessary condition to ensure its reliable operation is the stability and balance of the DC side voltage.The equivalent mathematical model of the cascaded H-bridge SVG is established and analyzed,and then the fluctuations process of the DC side voltage is derived.On this basis,the phase to phase active power exchange process of the cascaded H-bridge SVG is analyzed.A three-level balancing control method,based on the zero sequence voltage control,of the DC side voltage is putted forward,which includes the global DC side voltage balancing control,the phase to phase DC side voltage balancing control,and the balancing control of DC side voltage within a phase.Thus the problem of the DC side voltage balancing control is well solved.In the end,the main circuit structure containing 2 H-bridge units in a single phase is selected to perform the simulation and experiment in order to verify the effectiveness of the proposed method.

Key words： Cascaded H-bridge SVG reactive power compensation DC side voltage balance control zero sequence voltage

Received: 30 May 2014 Published: 07 July 2016

PACS:

TM726

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Li Lingling
	Lu Xiuxue
	Ji Haitao
	Li Zhigang

Cite this article:

Li Lingling,Lu Xiuxue,Ji Haitao等. A Balancing Control Method of DC Side Voltage for Cascaded H-Bridge Static Var Generator[J]. Transactions of China Electrotechnical Society, 2016, 31(9): 1-7.

URL:

https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I9/1

[1] 刘云峰,何英杰,尹仕奇,等.基于空间矢量调制的星形级联H桥SVG直流侧电压控制方法研究[J].电工技术学报,2015,30(5):23-32.
Liu Yunfeng,He Yingjie,Yin shiqi,et al.Research on DC voltage control based on space vector modulation method in the star connection cascaded H-bridge SVG[J].Transactions of China Electrotechnical Society,2015,30(5):23-32.
[2] Shi J,Gou W,Yuan H,et al.Research on voltage and power balance control for cascaded modular solid-state transformer[J].IEEE Transactions on Power Electronics,2011,26(4):1154-1166.
[3] Luo A,Shuai Z K,Shen Z J,et al.Design considerations for maintaining DC-side voltage of hybrid active power filter with injection circuit[J].IEEE Transactions on Power Electronics,2009,24(1):75-84.
[4] 丁理杰,杜新伟,周惟睛.SVC与STATCOM在大容量输电通道上的应用比较[J].电力系统保护与控制,2010,38(24):77-82.
Ding Lijie,Du Xinwei,Zhou Weijing.The application comparison between SVC and STATCOM in large capacity transmission channel[J].Power System Protection and Control,2010,38(24):77-82.
[5] 胡应宏,任佳佳,王建赜,等.级联STATCOM阀组直流侧电压不平衡现象及原因分析[J].电力系统自动化,2011,35(21):96-101.
Hu Yinghong,Ren Jiajia,Wang Jianze,et al.Analysis of DC side voltage imbalance phenomenon and the reason of cascaded STATCOM[J].Automation of Electric Power Systems,2011,35(21):96-101.
[6] 刘文亚,姚钢,何娈,等.基于级联多电平的有源滤波器直流侧电压平衡控制[J].电力系统保护与控制,2015,43(4):94-101.
Liu Wenya,Yao Gang,He Luan,et al.Research of DC voltage balance control based on multi-level cascaded APF[J].Power System Protection and Control,2015,43(4):94-101.
[7] 付伟,刘天琪,李兴源,等.静止无功补偿器运行特性分析和控制方法综述[J].电力系统保护与控制,2014,42(22):147-154.
Fu Wei,Liu Tianqi,Li Xingyuan,et al.Analysis of operating characteristic and survey of control methods used in static var compensator[J].Power System Protection and Control,2014,42(22):147-154.
[8] Woodhouse M L,Donoghe M W,Osbome M M.Type testing of the GTO valves for a novel STATCOM converter[C]//2001 Seventh International Conference on AC-DC Power Transmission,2001,485:89-90.
[9] 刘文华,宋强,滕乐天,等.基于链式逆变器的50 MVA静止同步补偿器的直流电压平衡控制[J].中国电机工程学报,2004,24(4):145-150.
Liu Wenhua,Song Qiang,Teng Letian,et al.Balancing control of DC voltage of 50 MV·A STATCOM based on cascaded multilevel converters[J].Proceedings of the CSEE,2004,24(4):145-150.
[10]Hagiwara M,Akagi H.Control and experiment of pulse width modulated modular multilevel converters[J].IEEE Transaction on Power Electronics,2009,24(7):1737-1746.
[11]Liu Z,Liu B Y,Duan S X,et al.A novel DC capacitor voltage balance control method for cascade multilevel STATCOM[J].IEEE Transaction on Power Electronics,2012,27(1):14-27.
[12]陶兴华,李永东,孙敏.一种H桥级联型PWM整流器的直流母线电压平衡控制新方法[J].电工技术学报,2011,26(8):85-90.
Tao Xinghua,Li Yongdong,Sun Min.A new method of DC bus voltage balance control of cascaded H-bridge type PWM rectifier[J].Transactions of China Electronic-technical Society,2011,26(8):85-90.
[13]Zhao T,Wang G,Bhattacharya S.Voltage and power balance control for a cascaded H-bridge converter-based solid-state transformer[J].IEEE Transaction on Power Electronics,2013,28(4):1523-1532.