[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.11142/jicems.2014.3.2.155

Study on the Influence of Grid Voltage Quality on SVG and the Suppression

Yi, Guiping (Southteast University of China)
Hu, Renjie (Electrical and Electronic Experiment Center)

Publication Information

Journal of international Conference on Electrical Machines and Systems / v.3, no.2, 2014 , pp. 155-161 More about this Journal

Abstract

Industrial Static Var Generator (SVG) is typically applied at or near the load center to mitigate voltage fluctuation, flicker, phase unbalance, non-sine distortion or other load-related disturbance. Special attention is paid to the influence of grid voltage quality on SVG current, the non-sine distortion and unbalance of grid voltage causes not only the AC current distortion and unbalance but also the DC voltage fluctuation. In order to let the inverter voltage contain the fundamental negative sequence and harmonic component corresponding to the grid voltage, a new dual-loop control scheme is proposed to suppress the influence in this paper. The harmonic and negative sequence voltage decomposition algorithm and DC voltage control are also introduced. All these analyses can guide the practical applications. The simulation results verify the feasibility and effectiveness of the present control strategy and analyses.

Keywords

SVG; Unbalance; Harmonic; Distortion; Dual-loop control;

Citations & Related Records

Reference

1	Li Xiaolu, Duan Xianzhong, He Yangzan, "Dynamic model of ASVG in unbalanced systems," Proceedings of the CSEE, Vol. 19, No. 9, pp. 76-80, 1999.
2	Kale. M, Ozdemir. E, "Harmonic and reactive power compensation with shunt active power filter under non-ideal mains voltage," Electric Power Systems Research, Vol. 74, No. 3, pp. 363-370, 2005. DOI
3	Mohaddes.M, Gole.A.M,Elez.S, "Steady state frequency response of STATCOM," IEEE Transactions on Power Delivery, Vol. 16, No. 1, pp. 18-23, 2001. DOI
4	Sensarma P S, Padiyar K R, Ramanarayanan V, "Analysis and performance evaluation of a distribution STATCOM for compensation voltage fluctuations," IEEE Transactions on Power Delivery, Vol. 16, No. 2, pp. 259-264, 2001. DOI
5	Rong Fei, Luo An, Fan Qing, "A novel voltage control method applied in STATCOM under unbalanced system," Transactions of China Electrotechnical Society, Vol. 25, No. 3, pp. 138-143, 2010.
6	Tang Jie, Luo An, Zhou Ke, "Design and realization voltage control for static synchronous compensator," Transactions of China Electrotechnical Society, Vol. 21, No. 8, pp. 103-107, 2006.
7	Hochgraf C, Lasseter R H, "Statcom controls for operation with unbalanced voltages," IEEE Transactions on Power Delivery, Vol. 13, No. 2, pp. 538-544, 1998. DOI ScienceOn
8	Chen W L,Hsu Y Y, "Direct output voltage control of a static synchronous compensator using current sensorless d-q vector-based power balancing scheme," IEEE Transactions on Power Delivery, Vol. 2, No. 7-12, pp. 545-549, 2003.
9	R. D. Henderson, P. J. Rose, "Harmonics: The effects on power quality and transformers," IEEE Transactions on Industrial Applications, Vol. 30, No. 3, pp. 528-532, 1994. DOI