Power Quality Improvement and Sag Voltage Correction by Dynamic Voltage Restorer

Shady Hossam Eldeen Abdel Aleem(1*), Ahmed Mohammed Saeed(2), Ahmed Mohamed Ibrahim(3), Essam Eldeen Abou El-Zahab(4)

(1) 15th of May Higher Institute of Engineering, 15th of May City, Helwan, Cairo., Egypt
(2) Faculty of Engineering, Cairo University, Giza, 12613., Egypt
(3) Faculty of Engineering, Cairo University, Giza, 12613., Egypt
(4) Faculty of Engineering, Cairo University, Giza, 12613., Egypt
(*) Corresponding author

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Power quality is a very important topic of the recent power system network topics. It refers to maintaining a sinusoidal waveform of bus voltages. Unfortunately, the power system faces many disturbances which affect the supply waveform, such as under voltage, notching, harmonics, sag and swell voltages. In practice, sag voltage and harmonics are the major problems which can cause malfunctioning or tripping of equipment and many other problems on the system. One of the causes of these events is the inrush current during the energization of no-load transformers. This paper presents an effective and economic solution for the protection of sensitive loads from sags and harmonics using the dynamic voltage restorer (DVR). It also highlights the full functions of the DVR, showing that it can be considered as a proper solution to overcome the inrush current effects. Sag indices concepts on the distribution system are also presented, showing the performance of the DVR to get better results. The increasing of the DVR effectiveness as well as its simplicity and low cost are reasons for considering it as the best solution for many quality disturbances. Simulation results using MATLAB/SIMULINK are presented to verify the effectiveness of the proposed scheme.
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Dynamic Voltage Restorer; Power Quality; Power Systems Harmonics; Voltage Disturbance; Transformer Inrush Current

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S.H.E. Abdel Aleem, A.F. Zobaa, and M.M. Abdel Aziz, Optimal C-type passive filter based on minimization of the voltage harmonic distortion for nonlinear loads, IEEE Transactions on Industrial Electronics, Vol. 59(1): 281-289, January 2012.

Rozlan, M.B.M., Zobaa, A.F., Abdel Aleem, S.H.E., The optimisation of stand-alone hybrid renewable energy systems using HOMER, (2011) International Review of Electrical Engineering (IREE), 6 (4), pp. 1802-1810.

A.F. Zobaa, M.M. Abdel-Aziz and S.H.E. Abdel Aleem. Comparison of shunt-passive and series-passive filters for DC drives loads. Electric Power Components and Systems, Vol. 38(3): 275–291, March 2010.

R.C. Dugan, M.F.M. Granaghan, S. Santoso and H.W. Beaty, Electric Power Systems Quality (McGraw-Hill, New York, 2002).

A.F. Zobaa and S.H.E. Abdel Aleem, A New Approach for Harmonic Distortion Minimization in Power Systems Supplying Nonlinear Loads, IEEE Transactions on Industrial Informatics, Vol. 10 (2):1401–1412, May 2014.

IEEE Standard 1159–1995, IEEE Recommended Practice for Monitoring Electric Power Quality, 1995.

Khanjanzadeh, A., Sedighizadeh, M., Rezazadeh, A., Pahlavanhoseini, A., Using clonal selection algorithm for sitting and sizing of distributed generation in distribution network to improve voltage profile and reduce THD and losses, (2011) International Review of Electrical Engineering (IREE), 6 (3), pp. 1325-1331.

Purwoharjono, Abdillah, M., Penangsang, O., Soeprijanto, A., Optimal placement of SVC for losses reduction and voltage profile improvement in electrical power system using improved gravitational search algorithm, (2013) International Review of Electrical Engineering (IREE), 8 (1), pp. 329-339.

IEEE Standard 519–1992, IEEE Recommended Practices and Requirements for Harmonic Control in Electrical Power Systems, 1992.

S.W. Wahab, A.M. Yusof, Voltage Sag Mitigation Using Dynamic Voltage Restorer (DVR) System, ELEKTRIKA, Vol. 8(2): 32-37, January 2006.

V.K. Ramachandaramurthy, A. Arulampalam, C.Fitzer, C. Zhan, M.Barnes, N. Jenkins, Supervisory control of dynamic voltage restorers, IEEE Generation, Transmission and Distribution, Vol. 151(4): 509-516, July 2004.

Jayachandran, J., Murali Sachithanantham, R., Malathi, S., Power quality improvement in three phase four wire distribution system with implementation of fuzzy logic controller based adaptive shunt active filter, (2014) International Review of Automatic Control (IREACO), 7 (2), pp. 197-207.

R.S. Thallam, G.T. Heydt, Power acceptability and voltage sag indices in the three phase sense, Panel Session on Power Quality-Voltage Sag Indices, IEEE Power Engineering Society Summer Meeting, Seattle, 2000.

M.H.J. Bollen; D.D. Sabin; R.S. Thallam. Voltage sag indices- draft, Working document for IEEE P1564, November 2003.

M. Gonzalez, V. Cardenas, L. Moran, J. Espinoza, Selecting between Linear and Nonlinear Control in a Dynamic Voltage Restorer, IEEE Power Electronics Specialists Conference, PESC'08, pp. 3867-3872, June 15-19, 2008.

S.H.E. Abdel Aleem, A.F. Zobaa, and A.C.M. Sung, “On the economical design of multiple-arm passive harmonic filters,” in 47th International Universities' Power Engineering. Conf., UPEC’12, Uxbridge, Middlesex, United Kingdom, pp. 1–6, Sep. 4–7, 2012.


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