Power Quality Improvement Using UPQC Integrated with Distributed Generation Network

Authors: B. Gopal, Pannala Krishna Murthy, G. N. Sreenivas

Abstract:

The increasing demand of electric power is giving an emphasis on the need for the maximum utilization of renewable energy sources. On the other hand maintaining power quality to satisfaction of utility is an essential requirement. In this paper the design aspects of a Unified Power Quality Conditioner integrated with photovoltaic system in a distributed generation is presented. The proposed system consist of series inverter, shunt inverter are connected back to back on the dc side and share a common dc-link capacitor with Distributed Generation through a boost converter. The primary task of UPQC is to minimize grid voltage and load current disturbances along with reactive and harmonic power compensation. In addition to primary tasks of UPQC, other functionalities such as compensation of voltage interruption and active power transfer to the load and grid in both islanding and interconnected mode have been addressed. The simulation model is design in MATLAB/ Simulation environment and the results are in good agreement with the published work.

Keywords: Distributed Generation(DG), Interconnected mode, Islanding mode, Maximum power point tracking (MPPT), Power Quality (PQ), Unified power quality conditioner (UPQC), Photovoltaic array (PV).

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1339113

References:

[1] J. M. Carrasco, L. G. Franquelo, J. T. Bialasiewicz, E. Galván, R. C.P. Guisado, M. Á. M. Prats, J. I. León, and N. M. Alfonso, “Power electronic systems for the grid integration of renewable energy sources: A survey,” IEEE Trans. Ind. Electron., vol. 53, no. 4, pp. 1002–1016, Aug. 2006.
[2] J. H. R. Enslin and P. J. M. Heskes, “Harmonic interaction betweena large number of distributed power inverters and the distribution network,” IEEE Trans. Power Electron., vol. 19, no. 6, pp. 1586–1593,
[3] D. D. Sabin and A. Sundaram, “Quality enhances reliability,” IEEE Spectr., vol. 33, no. 2, pp. 34–41, Feb. 1996.
[4] M. Rastogi, R. Naik, and N. Mohan, “A comparative evaluation of harmonic reduction techniques in three-phase utility interface of power electronic loads,” IEEE Trans. Ind. Appl., vol. 30, no. 5, pp. 1149–1155, Sep./Oct. 1994.
[5] A.Ghosh and G. Ledwich, “A unified power quality conditioner (UPQC) for simultaneous voltage and current compensation,” Elect Power Syst. Res., pp. 55–63, 2001.
[6] B.Gopal, P.Krishna Murthy and G.N.Sreenivas, “Power Quality Improvement using 24 pulse Bridge Rectifier for an Isolated Power Generation” International Journal of Advanced and Innovative Research (IJAIR) , Volume 1, Issue 3, August 2012,pp.32-38.
[7] F.Blaabjerg, R.Teodorescu, M. Liserre, and A. V. Timbus, “Overview of control and grid synchronization for distributed power generation systems,” IEEE Trans. Ind. Electron., vol. 53, no. 5, pp. 1398–1409, Oct. 2006.
[8] B.Renders, K.De Gusseme, W.R.Ryckaert, K.Stockman, L. Vandevelde, and M. H. J. Bollen, “Distributed generation for mitigating voltage dips in low-voltage distribution grids,” IEEE Trans. Power Del., vol. 23, no. 3, pp. 1581–1588, Jul. 2008
[9] B Han, B Bae, H Kim, S Baek, “Combined Operation of Unified Power Quality Conditioner with Distributed Generation”, IEEE Trans Power Delivery, vol. 21(1), 2006, pp. 330 – 338.
[10] J. P. Pinto, R. Pregitzer, L. F. C. Monteiro, and J. L. Afonso, “3-phase 4- wire shunt active power filter with renewable energy interface,” presented at the Conf. IEEE Renewable Energy & Power Quality, Seville, Spain, 2007.
[11] A Ghosh and G Ledwich, “Power quality enhancement using custom power devices”, Kluwer Academic, 2002.
[12] P. Jintakosonwit, H. Fujita, H. Akagi, and S. Ogasawara, “Implementation and performance of cooperative control of shunt active filters for harmonic damping throughout a power distribution system,” IEEE Trans. Ind. Appl., vol. 39, no. 2, pp. 556–564, Mar./Apr. 2003.
[13] B.Gopal, P.Krishna Murthy and G.N.Sreenivas, “A Review on UPQC for Power Quality Improvement in Distribution System” Global Journal of Researches in Engineering (GJRE-F) , Volume 13, Issue 7,Version 1.0, July- 2013,pp.49-57.
[14] V. Khadkikar, A. Chandra, A. O. Barry, and T. D. Nguyen, “Application of UPQC to protect a sensitive load on a polluted distribution network,” in Proc. Annu. Conf. IEEE Power Eng. Soc. Gen. Meeting 2006, pp. 867–872.
[15] A Kumar, “A Ghosh, Interline Unified Power Quality Conditioner”, IEEE Trans Power Delivery, Vol. 22(1), 2007, pp. 364-372.
[16] B.Gopal, K.K.Vasishta Kumar and Ch.Ramulu, “Performance of MCUPQC in unbalanced source voltage and voltage sag/swell migration conditions” ACEEE Trans. in International Journal on Recent Trends in Engineering & Technology (IJRTET), Vol. 05, No. 02, Mar, 2011,pp.157-159.
[17] V. Khadkikar, A. Chandra, A. Barry, and T. Nguyen, “Conceptual Study of unified power quality conditioner (UPQC),” in Proc. IEEE In Symp Ind. Electron., Jul. 9–13,2006, pp. 1088–1093
[18] M. Singh and A. Chandra, “Power maximization and voltage sag/swell ride-through capability of PMSG based variable speed wind energy conversion system,” in Proc. IEEE 34th Annu. Conf. Indus. Electron. Soc., 2008, pp. 2206–2211.
[19] P. Rodríguez, J. Pou, J. Bergas, J. I. Candela, R. P. Burgos, and D. Boroyevich, “Decoupled double synchronous reference frame PLL for power converters control,” IEEE Trans. Power Electron, vol. 22, no. 2, pp. 584–592, Mar. 2007.
[20] P. Krishna Murthy, J.Amarnath, S.Kamakshaiah and B.P.Singh “Wavelet Transform approach for Detection and Location of Faults in HVDC System,” IEEE Region 10 colloquium and the third ICIIS, Kharagpur,India,Dec.8-10,2008,pp.1-6.
[21] R. Mastromauro, M. Liserre, and A. Dell’ Aquila, “Single-phase Grid connected photovoltaic systems with power quality conditioner functionality,” in Proc. Power Electron. Appl., Sep. 2–5, 2007 pp.1-11.
[22] M. Oprisan and S. Pneumaticos, “Potential for electricity generation from emerging renewable sources in Canada,” in Proc. IEEE EIC Climate Change Technology Conf., May 2006, pp. 1–9.
[23] M. Aredes, K. Heumann, and E. H. Watanabe, “An universal active power line conditioner,” IEEE Trans. Power Del., vol. 13, no. 2, pp. 545–551, Apr. 1998.
[24] M. Hu and H. Chen, “Modeling and controlling of unified power quality compensator,” in Proc. 5th Int. Conf. Advances in Power System Control, Operation and Management, Hong Kong, China, 2000, pp. 431–435.
[25] G. L. Campen, “An analysis of the harmonics and power factor effects at a utility intertied photovoltaic system,” IEEE Trans. Power App.Syst., vol. PAS 101, no. 12, pp. 4632–4639, Dec. 1982.
[26] N. Srisaen and A. Sangswang, “Effect of pv grid-connected system location on a distribution system,” in Proc. IEEE Asia Pacific Conf. Circuit and Systems, Dec. 2006, pp. 852–855.
[27] L. Wang and Y. Lin, “Dynamic stability analysis of photovoltaic array connected to a large utility grid,” in Proc. IEEE Power Eng. Soc.Winter Meeting, Jan. 2000, vol. 1, pp. 476–480.
[28] A. Woyte, R. Belmans, and J. Nijs, “Testing and islanding protection function of photovoltaic inverters,” IEEE Trans. Energy Convers, vol.18, no. 1, pp. 157–162, Mar. 2003.
[29] S. Zheng, P.Wang, and L. Ge, “Study on pwm control strategy of photovoltaic grid-connected generation system,” in Proc. IEEE Int. Conf. Power Electronics and Motion Control, Shanghai, China, Aug. 2006,vol. 3.
[30] T. Esram and P. L. Chapman, “Comparison of photovoltaic array maximum power point tracking techniques,” IEEE Trans. Energy Convers, vol. 22, no. 2, pp. 434–449, Jun. 2007.