VSI Based DSTATCOM for Compensating Nonlinear and Unbalanced Loads

  • Abstract
  • Keywords
  • References
  • PDF
  • Abstract

    This paper presents study of distribution static compensator (D-STATCOM) for compensation of neutral current, source&PCC current harmonic distortion,  PCC voltage regulation and compensation of unbalanced current waveform for the three phase four wire nonlinear and  unbalanced load medium voltage distribution system. The proposed control algorithm is developed based on synchronous reference frame theory with PI controller. The obtained reference current signal from control algorithm is compared in hysteresis band current controller for better switching of D-STATCOM. The performance of system without & with D-STATCOM is also analysed and compared. The proposed control method is implemented on 11/0.4kv medium voltage distribution system and it is provided effective compensation for reactive power and harmonic distortion mitigation. The simulation results are obtained using MATLAB/SIMULINK.



  • Keywords

    Distribution static compensator (D-STATCOM), Synchronous reference frame (SRF) theory, PI controller, voltage source inverter (VSI), hysteresis current controller, harmonic distortion.

  • References

      [1] B. Bose, “Global energy scenario and impact of power electronics in 21st. century,” IEEE Trans. Ind. Electron., vol. 60, no. 7, pp. 2638-2651, July 2013.

      [2] Hive S, Chatterjee K, Fernandes BG. VAr compensation and elimination harmonics in three-phase four-wire system based on unified constant frequency integration control. In: IEEE 11th international conference on harmonics and quality of, power; 2004. p. 647–51.

      [3] George M, Basu KP. Modelling and control of three-phase shunt active power filter. Am J Appl Sci 2008; 5(5):1064–70.

      [4] G.-Myoung Lee, Dong-Choon Lee, Jul-ki Seok, ‘’Control of series Active power filters Compensating for source voltage Unbalance and current harmonics’’, IEEE Transactions on Industrial Electronics, vol.51.no.1.pp.132-139, February 2004.

      [5] Singh B, Chandra A, Al-Haddad K. Reactive power compensation and load balancing in electric power distribution systems. Int J Electr Power Energy Syst 1998; 20:375–81.Aug.

      [6] Sabha Raj Arya, Bhim Singh, Ram Niwas, Ambrish Chandra, and Kamal Al-Haddad. "Power Quality Enhancement Using DSTATCOM in Distributed Power Generation System,” IEEE Tran. Ind. App. Nov 2016, VOL. 52(6):5203-52122.

      [7] B. Singh, P. Jayaprakash, D. Kothari, A. Chandra, and K. Al Haddad,“Comprehensive study of DSTATCOM configurations,” IEEE Trans. On Ind. Informatics, vol. 10, no. 2, pp. 854–870, May 2014.

      [8] AredesM, Hafner J,Heuman K. Three phase four wire shunt active filter control strategies. IEEE Trans Power Electron Mar. 1997;12(2):311–8.

      [9] B. Singh, P. Jayaprakash, T. R. Somayajulu, and D. Kothari, “Reduced rating VSC with a zig-zag transformer for current compensation in a three-phase four-wire distribution system,” IEEE Trans. on Power Del.,vol. 24, no. 1, pp. 249–259, Jan. 2009.

      [10] B. Singh, P. Jayaprakash, and D. Kothari, “A T-connected transformer and three-leg VSC based DSTATCOM for power quality improvement,” IEEE Trans. on Power Electron., vol. 23, no. 6, pp. 2710–2718, Nov.2008.

      [11] B. Singh, S. Arya, C. Jain, and S. Goel, “Implementation of four-leg distribution static compensator,” IET Generation Transmission Distribution,vol. 8, no. 6, pp. 1127–1139, Jun. 2014.

      [12] Mahesh K. Mishra, A. Ghosh, A. Joshi, and H. Suryawanshi, “A novel method of load compensation under unbalanced and distorted voltages,”IEEE Trans. on Power Del., vol. 22, no. 1, pp. 288–295, Jan. 2007.

      [13] S. Karanki, N. Geddada, Mahesh K. Mishra, and B. Kumar, “A DSTATCOM topology with reduced dc-link voltage rating for load compensation with nonstiff source,” IEEE Trans. on Power Electron.,vol. 27, no. 3, pp. 1201–1211, Mar. 2012.

      [14] A. Bhattacharya, C. Chakraborty, and S. Bhattacharya, “Parallel connected shunt hybrid active power filters operating at different switching frequencies for improved performance,” IEEE Trans. on Ind. Electron., vol. 59, no. 11, pp. 4007–4019, Nov. 2012.

      [15] A. Ghosh and A. Joshi, “A new approach to load balancing and power factor correction in power distribution system,” IEEE Trans. on Power Del., vol. 15, no. 1, pp. 417–422, Jan. 2000.

      [16] D. M. Brod and D. Novotny, “Current control of VSI-PWM inverters,” IEEE Trans. on Ind. Appl., vol. IA-21, no. 3, pp. 562–570, May 1985.

      [17] U. Rao, Mahesh K. Mishra, and A. Ghosh, “Control strategies for load compensation using instantaneous symmetrical component theory under different supply voltages,” IEEE Trans. on Power Del., vol. 23, no. 4, pp. 2310–2317, 2008.

      [18] Mahesh K. Mishra., A. Ghosh, and A. Joshi, “A new STATCOM topology to compensate loads containing AC and DC components,” in Power Engineering Society Winter Meeting, 2000. IEEE, vol. 4, 2000, pp. 2636–2641.

      [19] A. Ghosh and G. Ledwich, Power Quality Enhancement Using Custom Power Devices, ser. Kluwer international series in engineering and computer science. Springer US, 2002.313.




Article ID: 14485
DOI: 10.14419/ijet.v7i3.3.14485

Copyright © 2012-2015 Science Publishing Corporation Inc. All rights reserved.