Enhancement of Voltage Regulation Using a Multi-Level Inverter Based Electric Spring with Reduced Number of Switches

Deepika k, Vijaykumar J, Kesava Rao Gattu

Abstract


Electric Springs has been testified recently to enhance voltage regulation in distribution systems using demand side management. In this paper, a 7-level Multilevel Inverter (MLI) with a resonant switched capacitor Converter based on sinusoidal PWM, is implemented to analyze the performance of an electric spring under voltage variations at PCC. By the proposed MLI based ES, voltage regulation of critical load voltage is studied for voltage sag and swell conditions. Remarkable features of the proposed topology are maintaining voltage balance in input capacitors and reduction of power components. Simulations have been done in MATLAB/ Simulink on distribution system with DGs equipped with MLI based ES under line voltage anomalies. Tested results are analyzed with THD% in critical load voltage.

References


. RS Ravi Sankar, SV Jaya Kumar, KK Deepika, “Model Predictive Current Control of Grid Connected PV System”, Indonesian Journal of Electrical Engineering and Computer Science, Vol. 2(2).

. S.Y.R.Hui, C.K.Lee, Fu, “Electric springs–A new smart grid technology,” IEEE Trans. Smart Grid, vol. 3, no. 3, September. 2012, pp: 1552–1561.

. Chaudhuri NR, Lee CK, Balarko Chaudhuri, “Dynamic modeling of electric springs” IEEE Transactions on Smart Grid, Vol. 5, No.5, Sept. 2014, pp:2450–8.

. Hasabelrasul, Hashim & Yan, Xiangwu. (2017). Comparison of Multicarrier PWM Techniques for Cascaded H-Bridge Multilevel Inverter. International Journal of Power Electronics and Drive Systems (IJPEDS). 8. 861. 10.11591/ijpeds.v8.i2.pp:861-868.

. Madhusudana Reddy, B & Reddy, Y & Vijaya Kumar, M. (2018). Modeling and simulation of 127 level optimal multilevel inverter with lower number of switches and minimum THD. International Journal of Power Electronics and Drive Systems. 9. 1765-1773. 10.11591/ijpeds.v9n4.pp1765-1773.

. Chetna Jangade, Kalyani Gajbhiye, Pavan Fuke, Payal Dahiwale,Samruddhi Bharati, Tina Patil, S.P.Gawande, “voltage regulation and droop control of Electric spring using single phase cascaded H-bridge inverter for stabilizing smart grid”, Journal of Research in Engineering and Applied SciencesVol. 2, ISuue 2, April 2017, pp-69-75.

. Rutuja Pawar, S. P. Gawande, S. G. Kadwane, M. A. Waghmare, R. N. Nagpure “Five-Level Diode Clamped Multilevel Inverter (DCMLI) Based Electric Spring for Smart Grid Applications”, Energy Procedia 117 (2017) 862–869.

. K. Gajbhiye, P. Dahiwale, S. Bharti, R. Pawar, S. P. Gawande and S. G. Kadwane, "Five-level NPC/H-bridge MLI based electric spring for harmonic reduction and voltage regulation," 2017 International Conference on Smart grids, Power and Advanced Control Engineering (ICSPACE), Bangalore, 2017, pp. 203-208.

. Shalchi Alishah, Rasoul & Hosseini, Hossein. (2015). A New Multilevel Inverter Structure for High-Power Applications using Multi-carrier PWM Switching Strategy. International Journal of Power Electronics and Drive Systems (IJPEDS). 6. 318. 10.11591/ijpeds.v6.i2.pp318-325.

. K. Narasimha Raju M .Venu Gopala Rao M.Ramamoorthy, “Hybrid Modulation Technique for Neutral Point Clamped Inverter to eliminate neutral point shift with minimum switching loss” TENCON 2015.

. K. W. E. Cheng, "New generation of switched capacitor converters," PESC 98 Record. 29th Annual IEEE Power Electronics Specialists Conference (Cat. No.98CH36196), Fukuoka, 1998, pp. 1529-1535 vol.2. doi: 10.1109/PESC.1998.703377

. K. Sano and H. Fujita, "Voltage-Balancing Circuit Based on a Resonant Switched-Capacitor Converter for Multilevel Inverters," in IEEE Transactions on Industry Applications, vol. 44, no. 6, pp. 1768-1776, Nov.-dec. 2008. doi: 10.1109/TIA.2008.2006291.

. C. Hsieh, T. Liang, S. Chen and S. Tsai, "Design and Implementation of a Novel Multilevel DC–AC Inverter," in IEEE Transactions on Industry Applications, vol. 52, no. 3, pp. 2436-2443, May-June 2016. doi: 10.1109/TIA.2016.2527622.




DOI: http://doi.org/10.11591/ijpeds.v11.i2.pp%25p
Total views : 104 times

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.