Design of an Ultracapacitor Based Dynamic Voltage Restorer for Power Quality Enhancement in the Distribution Grid
Shilpa Baraki, U B D T college of engineering; Dr. Ashok Kusagur ,U B D T C ollege of engineering
Dynamic Voltage Restorer (DVR), Ultra-capacitor (UCAP), DC-DC converter, sag/swell, PI controller
Dynamic Voltage Restorer is a Power Conditioning equipment that can compensate voltage sag and swell of the source voltage with the integration of Ultracapacitor. The innovative Scheme of this paper is the integration of UCAP with DVR, therefore this configuration of DVR can independently compensate the load voltage without utilization of grid voltage to compensate voltage sag and swell as in the existing system. The UCAP charge or discharge during supplying real power to the DVR. So, it is required to maintain the voltage profile of UCAP, this is achieved by incorporating the Buck-Boost converter between the base of the Inverter and Input stage of UCAP. This DC/DC Bidirectional converter provides the constant dc link voltage for the Voltage Source Inverter(DVR) for satisfying operation. The main complex thing in this work is design and control of DC/DC Buck-Boost Converter and Voltage Source Inverter. The whole model is designed and simulated in MATLAB/Simulink. The control strategies of Bidirectional Converter involve PI controller and DVR is controlled by PWM technique. The performance of DVR is validated with the results.
-
[1] M. H. J. Bollen, “Understanding Power Quality Problems,” Piscataway, NJ, USA: IEEE, 2000.
[2] Norbert EDOMAH, 2009, “Effects of Voltage Sags, Swell and other disturbances on Electrical Equipment and their Economic Implications,” 20th International Conference on Electricity Distribution, Prague.
[3] H Veeresh, A Kusagur , “Novel advanced switching technique ZCS/ZVS fed bidirectional DC-DC topology to EVs” IEEE transaction on Power and Embedded System.. 2016
[4] A. Ghosh and G. Ledwich, “Power Quality Enhancement Using Custom Power Devices,” London, U.K.: Kluwer, 2002. [5] C. Benachaiba, and B. Ferdi “Power quality improvement using DVR”, American Journal of Applied Sciences 6(3): 396-400, 2009.
[5] H. Igarashi and H. Akagi, “System Configurations and operating performance of a dynamic voltage restorer,” IEEE Trans. Ind. Appl., vol. 123-D no. 9, pp. 1021-1028, 2003.
[6] V Huluguppa and Ashok Kusagur,” Comaprative analysis of DC/DC Converter with soft switching technologies” ICEECCOT,016 International conference on 9-10 Dec 2016.
[7] A Kusagur, J Pujar - Proc. “Design of VAR compensator” International Conference on Trends in Intelligent …, 2007
[8] Pychadathil Jayaprakash, Bhim Singh, D. P. Kothari, Ambrish Chandra, and Kamal Al-Haddad, “Control of Reduced-Rating
[9] Dynamic Voltage Restorer with a Battery Energy Storage System,” IEEE transactions on industry applications, vol. 50, no. 2, March/April 2014.
Paper ID: GRDJEV03I070074
Published in: Volume : 3, Issue : 7
Publication Date: 2018-07-01
Page(s): 70 - 76
Published in: Volume : 3, Issue : 7
Publication Date: 2018-07-01
Page(s): 70 - 76