Harmonic Distortion Reduction using Seven level H-Bridge VSI Topology based Dynamic Voltage Restorer
Keywords:DVR, Phase shifted Pulse width modulation (PSPWM), Voltage source inverter (VSI), Voltage harmonics, Voltage sag
This paper demos the model, the control and simulation of H-Bridge VSI topology based Dynamic Voltage Restorer (DVR). The structure and the operating principle of the Cascaded H-Bridge Seven level Inverter is realized. The phase shifted SPWM was adapted to reduce the lower order harmonics of the output voltage. The controller was based on the dqo transformation. The performance of the proposed method was ascertained in PSCAD. The simulation results are appraised and discussed. The controller was able to manage the zero-sequence voltage during unbalance fault period. The phase shift SPWM was incorporated with low frequency and subsequently, the switching loss was low. The Total Harmonic Distortion (THD) with the designed DVR was significantly was low in comparison to other traditional models and was within the IEEE Standards 519-2014. The envisioned controller algorithm provides excellent voltage improvements.
. Kannan Karthik and J.E. Quaicoe, “Voltage Compensation and Harmonic Suppression using Series Active and Shunt Passive Filters”, Electrical and Computer Engineering, Canadian Conference, Vol. 1. pp. 582-586, 2000.
. Hideaki Fujita and Hirofumi Akagi, “A Practical Approach to Harmonic Compensation in Power System- Series Connection of Passive and Active Filters”, IEEE Transactions on Industry Applications, Vol. 27, Issue N0.6, November/December 1991.
. Bhim Singh, “Power Quality: Problems and Mitigation Techniques”, John Wiley and Sons Limited, 2015.
. Zhongdong Yin and Lixia Zhou, “A Novel Harmonics Injecting Approach on Over Saturation Suppression of DVR Series Injection Transformer”, IEEE, Power Engineering Conference, pp. 1-5, 29 Nov 2005.
. Steven M. Hietpas, “Automatic Voltage Regulator Using an AC Voltage-Voltage Converter”, IEEE Transactions on Industry Applications, Vol. 36, No.1, pp.33-38, January/February 2000.
. Sunil Kumar Gupta, “Study of Major Issues and Their Impact on DVR System Performance”, International Journal of Computer and Electrical Engineering, Vol. 2, No.1, pp. 105-110, February 2010.
. A.Venkatakrishna, “Phase Shifted and Level Shifted PWM Based Cascaded Multilevel Inverter Fed Induction Motor Drive”, International Journal of Current Engineering and Technology, Vol.4, No.1, pp.350-354, February 2014.
. N.H. Woodley, “Field experience with Dynamic Voltage Restorer” Power Engineering Society Winter Meeting, vol. 3, pp. 1323-1328, IEEE, 2000.
. Sasitharan S, “Rating and Design Issues of DVR Injection Transformer”, IEEE, Applied Power Electronic Conference (APEC), pp.449-455, 24-28 Feb. 2008.
. Mahinda Vilathgamuwa and S.S.Choi, “Performance Improvement of the Dynamic Voltage Restorer with Closed-loop Load Voltage and Current-Mode Control”, IEEE Transaction on Power Electronic,Vol.17, No.5, pp. 824-834, September 2002.
. H. Tiwari, "DC Energy Storage Schemes for DVR Voltage Sag Mitigation System," International Journal of Computer Theory and Engineering, vol. 2, no. 3, pp. 313-318, June 2010.
. Suresh Kumar, “Mitigation of Lower order Harmonics in a Grid connected Three Phase PV Inverter”, International Research Journal of Engineering and Technology (IRJET), Vol 02, pp. 1036-1046, Aug 2015.
. AlirezaJavadi, “A Novel Transformerless Hybrid Series Active Filter”, IEEE Industrial Electronics Society, pp.5312- 317, 25-28 Oct. 2012.
. M. A. Mulla, “A Simplified Control Strategy for Series Hybrid Active Power Filter that Compensate Voltage Sag, Swell, Unbalance and Harmonics” IEEE, pp. 1-6, 6-8 Dec.2012.
How to Cite
Authors who submit papers with this journal agree to the following terms.