International Journal of Advanced Technology and Engineering Exploration (IJATEE) ISSN (P): 2394-5443 ISSN (O): 2394-7454 Vol - 8, Issue - 78, May 2021
  1. 1
    Google Scholar
A 7-level inverter with less number of switches for grid-tied PV applications

J. N. Bhanutej and Rani Chinnappa Naidu

Abstract

In the current context, Medium Voltage High Power (MVHP) applications are developing industrial technologies. The direct connection of a photovoltaic (PV) system to an MVHP system may cause various connectivity challenges. To address the interconnection difficulties, this paper describes a 7-Levl Cascaded H-Bridge Multilevel Inverter (CHB-MLI) architecture with fewer switches and lower harmonics. This article proposes the Reduced Switch Multilevel Inverter (RSMLI). This design is less expensive than traditional Multilevel Inverter (MLI) topologies, and it is ideally suited for medium voltage and high-power applications since it synthesizes numerous Direct Current (DC) sources. The innovative 7-level inverter is represented with a decreased number of switches using the Phase Opposition Disposition (POD) methodology. The lower switch count helps the construction of simple converter structures. To boost performance, the MATLAB/Simulink results are evaluated.

Keyword

Multilevel inverter (MLI), Pulse width modulation (PWM), Phase opposition disposition (POD), Photovoltaic (PV) systems, Reduced switch components (RSC), Total harmonic distortion (THD).

Cite this article

Bhanutej JN, Naidu RC

Refference

[1][1]Makhubele JW, Ogudo KA. Analysis on basics of modulation techniques for AC Drive on efficiency improvements. In IEEE PES/IAS PowerAfrica 2020 (pp. 1-5). IEEE.

[2][2]Acharya AB, Ricco M, Sera D, Teoderscu R, Norum LE. Performance analysis of medium-voltage grid integration of PV plant using modular multilevel converter. IEEE Transactions on Energy Conversion. 2019; 34(4):1731-40.

[3][3]Zhang X, Wang M, Zhao T, Mao W, Hu Y, Cao R. Topological comparison and analysis of medium-voltage and high-power direct-linked PV inverter. CES Transactions on Electrical Machines and Systems. 2019; 3(4):327-34.

[4][4]Barrios MA, Cárdenas V, Sandoval JM, Guerrero JM, Vasquez JC. A cascaded DC-AC-AC grid-tied converter for PV plants with AC-link. Electronics. 2021; 10(4):1-21.

[5][5]Latha JH, Banakara BR. Analysis of multilevel inverter with reduced number of switches fed from photovoltaic system through boost converter. Journal of Critical Reviews. 2020; 7(1):331-6.

[6][6]Beigi LM, Azli NA, Khosravi F, Najafi E, Kaykhosravi A. A new multilevel inverter topology with reduced number of power switches. In international conference on power and energy 2012 (pp. 55-9). IEEE.

[7][7]Bana PR, Panda KP, Naayagi RT, Siano P, Panda G. Recently developed reduced switch multilevel inverter for renewable energy integration and drives application: topologies, comprehensive analysis and comparative evaluation. IEEE Access. 2019; 7:54888-909.

[8][8]Panda KP, Lee SS, Panda G. Reduced switch cascaded multilevel inverter with new selective harmonic elimination control for standalone renewable energy system. IEEE Transactions on Industry Applications. 2019; 55(6):7561-74.

[9][9]Siddique MD, Mekhilef S, Shah NM, Sarwar A, Iqbal A, Tayyab M, et al. Low switching frequency based asymmetrical multilevel inverter topology with reduced switch count. IEEE Access. 2019; 7:86374-83.

[10][10]Omer P, Kumar J, Surjan BS. A review on reduced switch count multilevel inverter topologies. IEEE Access. 2020; 8:22281-302.

[11][11]Hosseinpour M, Seifi A, Dejamkhooy A, Sedaghati F. Switch count reduced structure for symmetric bi-directional multilevel inverter based on switch-diode-source cells. IET Power Electronics. 2020; 13(8):1675-86.

[12][12]Mondol MH, Tür MR, Biswas SP, Hosain MK, Shuvo S, Hossain E. Compact three phase multilevel inverter for low and medium power photovoltaic systems. IEEE Access. 2020; 8:60824-37.

[13][13]Kakar S, Ayob SB, Iqbal A, Nordin NM, Arif MS, Gore S. New asymmetrical modular multilevel inverter topology with reduced number of switches. IEEE Access. 2021; 9:27627-37.

[14][14]Srinivasan GK, Rivera M, Loganathan V, Ravikumar D, Mohan B. Trends and challenges in multi-level inverter with reduced switches. Electronics. 2021; 10(4):1-23.

[15][15]Singh DK, Manna S, Akella AK. Grid connected PV system using multilevel inverter. In 7th international conference on electrical energy systems 2021 (pp. 346-51). IEEE.

[16][16]Sandhu M, Thakur T. Modified cascaded H-bridge multilevel inverter for hybrid renewable energy applications. IETE Journal of Research. 2020.

[17][17]Narasimhulu V, Kumar DA, Babu CS. Computational intelligence based control of cascaded H-bridge multilevel inverter for shunt active power filter application. Journal of Ambient Intelligence and Humanized Computing. 2020.

[18][18]Rajalakshmi S, Rangarajan P. Investigation of modified multilevel inverter topology for PV system. Microprocessors and Microsystems. 2019.

[19][19]Rana RA, Patel SA, Muthusamy A, Kim HJ. Review of multilevel voltage source inverter topologies and analysis of harmonics distortions in FC-MLI. Electronics. 2019; 8(11):1-37.

[20][20]Zeb K, Khan I, Uddin W, Khan MA, Sathishkumar P, Busarello TD, et al. A review on recent advances and future trends of transformerless inverter structures for single-phase grid-connected photovoltaic systems. Energies. 2018; 11(8):1-34.

[21][21]Thamilmaran A, Vijayapriya P, Kowsalya M. Design of STATCOM using CHB and its comparison with other RPC devices. Indian Journal of Science and Technology. 2016; 9(5):1-7.

[22][22]Rout KK, Tripathy A, Sahu O, Mishra S. A comparative analysis of different topologies of an eleven level inverter for solar power applications. In international conference on recent innovations in electrical, electronics & communication engineering 2018 (pp. 140-6). IEEE.

[23][23]Kumar BS, Kirubakaran A. A single-phase quasi-z-source based seven-level inverter with capacitor voltage balancing. In India international conference on power electronics (IICPE) 2018 (pp. 1-5). IEEE.

[24][24]Ranjan AK, Bhaskar DV, Parida N. Analysis and simulation of cascaded H-bridge multi level inverter using level-shift PWM technique. In international conference on circuits, power and computing technologies 2015 (pp. 1-5). IEEE.

[25][25]Udakhe P, Atkar D, Chiriki S, Borghate VB. Comparison of different types of SPWM techniques for three phase seven level cascaded H-Bridge inverter. In 1st international conference on power electronics, intelligent control and energy systems 2016 (pp. 1-5). IEEE.

[26][26]Alaas Z, Wang C. A new isolated multilevel inverter based on cascaded three-phase converter blocks. In transportation electrification conference and expo 2015 (pp. 1-6). IEEE.