Review on Multi Level Inverter Topologies and Control Strategies for Solar Power Conversion

  • B. G. Shivaleelavathi JSS Academy of Technical Education, Bengaluru
  • Chinmayi Srikanth Jyothi Institute of Technology
  • Veeramma Yatnalli JSS Academy of Technical Education, Bengaluru
Keywords: Multi Level Inverter(MLI), CHBMLI, EMCPWM, Control Strategy


Nowadays solar power has become an alternate method of power generation for standalone systems for both urban and rural electrification. The Power Electronics converters used for the power conversion should provide quality AC output to have near sinusoidal voltage. The inverter topology and the PWM technique of the inverter play a vital role in providing quality output. This paper reviews recent contribution to establish the current status and development of the technology to provide reader with an insightful review of multilevel inverters and its control strategy. A brief overview of Multi Level Inverters (MLI) topology and advantages of Cascaded H-Bridge Multi Level Inverter (CHBMLI) for solar power conversion is presented and the various control strategies for CHBMLI are discussed with view point of quality output.  Among the different PWM techniques discussed, the Elliptical Multi Carrier PWM (EMC PWM) control strategy is the new modulation technique which successfully improves the DC bus utilization without over-modulation and without adding third harmonic to fundamental frequency. Also, the technique is successful in reducing the %THD at the output voltage. The control strategy is simple even with increased   level of output voltage, which is not possible in SVPWM technique.  Hence, the EMC PWM technique is having better performance when compared to Multi Carrier PWM (MCPWM) technique, Space Vector PWM (SVPWM) technique and Third Harmonic Injection PWM (THIPWM) technique. 


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Author Biographies

B. G. Shivaleelavathi, JSS Academy of Technical Education, Bengaluru


Dept. Electronics and Communication Engineering.

Chinmayi Srikanth, Jyothi Institute of Technology

Associate Professor,

Dept. Electronics and Communication Engineering.

Veeramma Yatnalli, JSS Academy of Technical Education, Bengaluru

Associate Professor,

Dept. of Electronics and Communication Engineering.


Off-grid Renewable Energy in India Technology & Service Overview 2015 – 2016, Indo-German Energy Forum Support Office, Second Edition, pp-10, March 2015.

G.D. Kamalapur, and R.Y. Udaykumar, Rural Electrification in India and feasibility of Photovoltaic Solar Home Systems, Electrical Power and Energy Systems 33, Elsevier Ltd., doi:10.1016, IJEPES, pp.594–599, 2011 DOI:

Article,) Solar tariff bottoms out, may not have free fall in 2018-

Article, Where are Indian solar tariffs headed?-

Deepak Paramashivan Kaundinya, P. Balachandra, N. H. Ravindranath, Grid-connected versus stand-alone energy systems for decentralized power—A review of literature, Elsevier- Renewable and Sustainable Energy Reviews, vol. 13, pp.2041–2050, 2009.

Venkatachalam Kumar Chinnaiyan, Jovitha Jerome and J. Karpagam , An Experimental Investigation on a Multilevel Inverter for solar energy applications, Electrical Power and Energy Systems, , ELSEVIER, Vol.47, pp.157-167, 2013. DOI:

Nupur Mittal, Bindeshwar Singh, S.P. Singh, , Rahul Dixit and Dasharath Kumar, Multilevel Inverters: A Literature Survey on Topologies and Control Strategies, 2nd IEEE International Conference on Power, Control and Embedded Systems, ISSN: 978-1-4673-1049-9, DOI: 10.1109/ICPCES.2012.6508041, Allahabad, India,2012. DOI:

Abdelaziz Fria, Rachid El Bachtiria, Abdelaziz El Ghzizala, A Comparative Study of Three Topologies of Three-Phase (5L) Inverter for a PV System, Energy Procedia, Vol. 42, pp.436 – 445, 2013. DOI:

Zheng Zeng, Huan Yang, Rongxiang Zhao, Chong Cheng , Topologies And Control Strategies of Multi-Functional Grid-Connected Inverters for Power Quality Enhancement: A Comprehensive Review, Elsevier Renewable and Sustainable Energy Reviews, Vol.24, pp.223–270, 2016. DOI:

Hamidreza Keyhani, Matthew Johnson and Hamid A. Toliyat, A Soft-Switched Highly Reliable Grid-Tied Inverter for PV Applications, Twenty-Ninth Annual IEEE- Applied Power Electronics Conference and Exposition (APEC), 16-20 March 2014, 1725 – 1732. DOI:

Fracchia, M, Ghiara, T, Marchesoni, M and Mazzucchelli, M, Optimized Modulation Techniques for the Generalized N-level Converter, Proceedings of the IEEE Power Electronics Specialist Conference, Vol.2, 1205-1213, 1992.

Venkatachalam Kumar Chinnaiyan, Jovitha Jerome and J. Karpagam, An Experimental Investigation on a Multilevel Inverter for solar energy applications, Electrical Power and Energy Systems, Vol. 47C, 2013, pp.157-167. DOI information: 10.1016/j.ijepes.2012, pp.157-167, 2013.

Panagiotis Panagis, Fotis Stergiopoulos, Pantelis Marabeas and Stefanos Manias, Comparison of State of the Art Multilevel Inverters, IEEE Power Electronics Specialists Conference, PESC., ISSN: 0275-9306, pp.4296 – 4301, 2008.

Sergio Daher, Jurgen Schmid and Fernado L.M. Antunes, Multilevel Inverter Topologies for Stand-Alone PV Systems,I EEE Transactions on Industrial Electronics, Vol. 55, No. 7, 2703-2712, July 2008. DOI:

I. D. Pharne, and Y.N. Bhosale, A Review on Multilevel Inverter Topology, IEEE International Conference on Power, Energy and Control(ICPEC)-2013, ISSN: 978-4673-6030-2, pp. 700-704, 2013. DOI:

Muhammad H. Rashid, Power electronics-Circuits, Devices and Applications, Third Edition, Pearson Publication, pp.411-422.

Jun Mei, Balio Xiao, M. Leon, and Jian Yong, Modular Multilevel Inverter with New Modulation Method and Its Application to Photovoltaic Grid-Connected Generator, IEEE Transactions on Power Electronics, Vol. 28, No.11, pp.5063-5073, Nov 2013 DOI:

A.R. Beig, and A. Dekka, Experimental Verification of Multilevel Inverter-Based Standalone Power Supply for Low-Voltage and Low-Power Applications, IET Power Electronics, Vol. 5, No.6, pp. 635-643, 2012. DOI:

] Yi-Hung Liao and Ching-Ming Lai, Newly-Constructed Single-Phase Multistring Multilevl Inverter Topology for Distributed Energy Resources, IEEE Transactions on Power Electronics, Vol. 26, No. 9, pp. 2386 – 2392, Sept. 2011.

] Joshi Manohar Vesapogu1, Sujatha Peddakotla and Seetha Rama Anjaneyulu Kuppa, Harmonic Analysis and FPGA Implementation of SHE Controlled Three- Phase CHB 11-level Inverter in MV Drives Using Deterministic and Stochastic Optimization Techniques, SpringerPlus volume 2, Article number: 370, 2013. DOI:

R. Vijay Kumar, Alamelu Natchiappan, C. Devilalitha, , R. Mazhuventhi, Selective Harmonic Elimination PWM Method using Seven Level Inverters by Genetic Algorithm Optimization Technique, International Journal of Engineering Research & Technology (IJERT), Vol. 4, No.2, pp. 812-818, Feb 2015.

Keliang Zhou and Danwei Wang, (2002) Relationship Between Space-Vector Modulation and Three-Phase Carrier-Based PWM: A Comprehensive Analysis, IEEE Transactions On Industrial Electronics, Vol. 49, No. 1, pp. 186-196, Feb 2002.

Hemant Gupta, Arvind Yadav, Sanjay Maurya, (2016) Multi Carrier PWM and Selective Harmonic Elimination technique for Cascade Multilevel Inverter, IEEE- International Conference on Advances in Electrical, Electronics, Information, Communication and Bio-Informatics (AEEICB16), Chennai, India, 978-1-4673-9746-9, pp. 1-5, Feb 2016.

] Bogimi Sirisha, P. Satish Kumar,) A Simplified Space Vector Pulse Width Modulation Method Including Over Modulation Operation for Five Level Cascaded H-bridge Inverter with FPGA Implementation, International Journal of Power Electronics and Drive System (IJPEDS), Vol. 8, No. 3, pp. 1203-1211, Sept 2017.

K. Vinoth Kumar, Prawin Angel Michael, Joseph P. John and S. Suresh Kumar, Simulation And Comparison Of SPWM And SVPWM Control For Three Phase Inverter, ARPN Journal of Engineering and Applied Sciences, ISSN 1819-6608, Vol. 5, No. 7, July 2010.

B.G. Shivaleelavathi, E.G. Shivakumar, Optimal SVPWM Signal Generation for three level Inverters, IEEE International Advance Computing Conference –IACC-2009, 1362-1369, March 2009. DOI:

Ville Naumanen, Multilevel Converter modulation: Implementation and Analysis, Thesis for the degree of Doctor of Science (Technology), Lappeenranta University of Technology, Finland, June 2010.

Shantanu Chatterjee, A Multilevel Inverter Based on SVPWM Technique for Photovoltaic Application , International Journal of Power Electronics and Drive Systems (IJPEDS), , ISSN: 2088-8694, Vo1. 1, pp. 67-73, March 2013. DOI:

John Alan Vodden, Modulation techniques for the Cascaded H-bridge Multi-Level Converter, Ph. D thesis, University of Nottingham, July 2012.

Rasoul Shalchi, Seyyed Hossein Hosseini, A New Multilevel Inverter Structure for High-Power Applications Using Multicarrier PWM Switching Strategy, International Journal of Power Electronics and Drive Systems (IJPEDS), ISSN: 2088-8694, , Vol. 6, No. 2, pp.318-325, June 2015. DOI:

Phuong Hue Tran, (2012) MATLAB/Simulink Implementation And Analysis Of Three Pulse-Width-Modulation (PWM) Techniques, Thesis of Master of Science in Electrical Engineering Boise State University, May 2012.

Wanchai Subsingha, (2016) A Comparative Study of Sinusoidal PWM and Third Harmonic Injected PWM Reference Signal on Five Level Diode Clamp Inverter, Energy Procedia, Vol. 89, pp.137 – 148, 2016.

Chinmayi, B.G. Shivaleelavathi, Enhancement of Fundamental RMS Output Voltage of 5-level Cascaded H-Bridge Multilevel Inverter Using Modified Multicarrier PWM Technique, IJEET, Vol. 7, No. 1, pp. 17-29, Jan-Feb 2016.

Chinmayi, B.G. Shivaleelavathi, Performance Analysis of Cascaded Multilevel Inverter Using Modified Multicarrier PWM Technique, in Proceedings. IEEE ICIMIA 2017, Bengaluru, India, 978-1-5090-5960-7, pp. 50-55, 21st -23rd Feb 2017.

Chinmayi, B. G. Shivaleelavathi, A Novel Implementation of Digital Control Strategy for Multilevel Inverters Using FPGA Wavect Controller, IEEE COMPEL 2017, Stanford University, California, USA, ISSN : 978-1-5090-5326-1, pp.1-6, 9th -12th July, 2017.

Chinmayi, B. G. Shivaleelavathi, Digital Control of Three-Phase Cascaded Multilevel Inverter Using FPGA Wavect Tool, International Journal of Power Electronics and Drive System (IJPEDS), ,Vol. 9, No. 1, 189-197, March 2018. DOI:

Chinmayi, B. G. Shivaleelavathi, Veeramma Yatnalli, Simulation of Seven and Nine Level CHBMLI with Elliptical Phase Disposition PWM Technique, Scientific Research Publishing- JPEE, ISSN: 2327-5901,Vol. 8, pp. 49-63, March 2020 DOI:

Sohaib Tahir, Jie Wang, Mazhar Hussain Baloch and Ghulam Sarwar Kaloi, Digital Control Techniques Based on Voltage Source Inverters in Renewable Energy Applications: A Review, Electronics, MPDI, 1-37, doi:10.3390/electronics7020018 ,Feb 2018 DOI:

Esmaeil Zangeneh Bighasha, Seyed Mohammad Sadeghzadeha,Esmaeil Ebrahimzadehb, Frede Blaabjergb, High quality model predictive control for single phase grid-connectedphotovoltaic inverters, Electric Power Systems Research, Elsevier 158, ISSN: 0378-7796, pp. 115–125, Feb 2018 DOI:

L. Hassaine a,n, E. OLias b, J. Quintero b, V. Salas b, Overview of power inverter topologies and control structures for grid connected photovoltaic systems, Renewable and Sustainable Energy Reviews, Elsevier 30, ISSN: 1364-0321, pp.796-907, 2013 DOI:

Linda Hassaine∗, Mohamed Rida Bengourina, Control technique for single phase inverter photovoltaic system connected to the grid, Energy Reports 6, Elsevier ScienceDirect, ISSN: 2352-4847, pp. 200–208, 2020 DOI:

How to Cite
Shivaleelavathi, B. G., Srikanth, C., & Yatnalli, V. (2020). Review on Multi Level Inverter Topologies and Control Strategies for Solar Power Conversion. EMITTER International Journal of Engineering Technology, 8(2), 295-315.