Comparative study of two cases of single-phase HCMLI using IPDPWM technique for standalone PV system

Document Type : Research Paper


1 Medical Instruments Technology Engineering Department, AL-Esraa University College, Baghdad, Iraq

2 Computer technology engineering, Al Salam University College, Baghdad, Iraq


The main aim of the paper is to reduce the Total Harmonic Distortion of a 9-level Hybrid Cascaded Multilevel Inverter for a standalone Photovoltaic system operated at Maximum powerpoint. The maximum power point is tracked using perturb and observe (P\&O) method, a boost converter is used to implement this process. The output power is calculated using a small perturbation in the terminal voltage. The comparison between two cases of hybrid cascaded multilevel inverter using Phase Disposition Pulse Width Modulation has been done. Total harmonic distortion is minimized when one bridge is run in square wave mode and the other bridges are operated in pulse width modulation mode, according to the results of this comparison. The value of THD for HMLI output voltage is equal to 12.85 percent when all bridges are operated in PWM mode, according to simulation results. Finally, the results of the computer simulations using the MATLAB software are presented and discussed, along with a comparison of pulse width modulation strategies.


[1] M. Abdel-Salam, M.T. El-Mohandes and M. El-Ghazaly, An efficient tracking of MPP in PV systems using a
newly-formulated P & O MPPT method under varying irradiation levels, J. Electr. Eng. Technol. 15(1) (2020)
[2] Z.E. Abdulhamed, A.H. Esuri and N.A. Abodhir, New topology of asymmetrical nine-level cascaded hybrid bridge
multilevel inverter, 2021 IEEE 1st Int. Maghreb Meet. Conf. Sci. Techniq. Automatic Control and Computer
Engin. MI-STA, Tripoli-Libya, (2021) 430–434.
[3] C.C. Ahmed, M. Cherkaoui and M. Mokhlis, PSO-SMC controller based GMPPT technique for photovoltaic panel
under partial shading effect, Int. J. Intell. Eng. Syst. 13(2) (2020) 307–316.
[4] K. Boudaraia, H. Mahmoudi and A. Abbou, MPPT design using artificial neural network and backstepping sliding
mode approach for photovoltaic system under various weather conditions, Int. J. Intell. Eng. Syst. 12(6) (2019)
[5] F.M. De Oliveira, S.A.O. Da Silva, F.R. Durand, L.P. Sampaio, V.D. Bacon and L.B.G. Campanhol, Gridtied photovoltaic system based on PSO MPPT technique with active power line conditioning, IET 9(6) (2016)
[6] R. El Idrissi, A. Abbou and M. Mokhlis, Backstepping integral sliding mode control method for maximum power
point tracking for optimization of PV system operation based on high-gain observer, Int. J. Intell. Eng. Syst. 13(5)
(2020) 133–144.
[7] R. El Idrissi1, A. Abbou, M. Mokhlis and M. Salimi, Adaptive backstepping controller design based MPPT of the
single-phase grid connected PV system, Int. J. Intell. Eng. Sys. 14(3) (2021) 282–293.
[8] U. Gajula and G. Eragamreddy, Multicarrier PWM strategies for hybrid symmetrical multilevel inverter with
reduced switch count, Int. J. Eng. Advanced Tech. 9 (2020) 860–866.
[9] T.W. Hariyadi and A. Adriansyah, Comparison of DC-DC converters boost type in optimizing the use of solar
panels, 2nd Int. Conf. Broadband Commun. Wireless Sensors and Powering (BCWSP), Yogyakarta, Indonesia,
(2020) 189–194.
[10] A. Harrag and S. Messalti, PSO-based SMC variable step size P & O MPPT controller for PV systems under
fast changing atmospheric conditions, Int. J. Numer. Model. Electron. Networks, Devices Fields 32(5) (2019).
[11] L.P.N. Jyothy and M.R. Sindhu, An artificial neural network based MPPT algorithm for solar PV system, In:
Proc. Of the 4th International Conference on Electrical Energy Systems, ICEES 2018, (2018) 375–380.
[12] O. Kumar, M. Goyal and R. Mishra, Modified PV based hybrid multilevel inverters using multicarrier PWM
strategy, Fourth Int. Conf. Elect. Commun. Aerospace Technol. (ICECA-2020), (2020) 460–464.
[13] S.S. Lee, M. Sidorov, C.S. Lim, N.R.N. Idris and Y.E. Heng, Hybrid cascaded multilevel inverter (HCMLI) with
improved symmetrical 4-level submodule, IEEE Trans. Power Electron. 33(2) (2018) 932–935.
[14] X. Li, H. Wen, Y. Hu and L. Jiang, A novel beta parameter based fuzzy-logic controller for photovoltaic MPPT
application, Renew. Energy 130 (2019) 416–427.
[15] P. Manoharan, S. Rameshkumar and S. Ravichandran, Modelling and implementation of cascaded multilevel
inverter as solar PV based micro inverter using FPGA, Int. J. Intell. Eng. Syst. 11(2) (2018) 18–27.
[16] H.R. Muhammad, Power Electronics: Circuits, Devices, and Applications, Pearson/Prentice Hall, 2004.
[17] K.B. Nagasai and T.R. Jyothsna, Harmonic analysis and application of PWM techniques for three phase inverter,
Int. Res. J. Eng. Tech. 03 (2016) 1228–1233.
[18] H.P. Nguyen, D.T. Nguyen and M.T. Chau, Carrier-based PWM method for indirect matrix converters based on
space vector analysis, Int. J. Intell. Eng. Syst. 13(6) (2020) 307–317.
[19] R. Sarker, Phase disposition PWM (PD-PWM) technique to minimize WTHD from a three-phase NPC multilevel
voltage source inverter, IEEE Int. Conf. Convergence Engin. (2020) 220–224.[20] T.S. Sasank, P.R. Ganesh, N.P. Kumar, B. Jena and A.J. Obaid, Cryogenic analysis of junctionless nanowire
MOSFET during underlap in lower technology nodes, J. Phys.: Conf. Ser. 1879 (2020).
[21] L. Shang, H. Guo and W. Zhu, An improved MPPT control strategy based on incremental conductance algorithm,
Prot. Control Mod. Power Syst. 5(1) (2020).
[22] S. Sharma and A.J. Obaid, Optimal design, simulation and implementation of solar photo-voltaic panels in hybrid
electric vehicles using CATIA V5R19 software integrated with ANSYS 13.0 versions, J. Phys.: Conf. Ser. 1530(1)
[23] H. Singh, J. Singh, S. Sharma, S.P. Dwivedi and A.J. Obaid, Comparative performance of copper, graphite, brass
and aluminium/graphite-based different tool electrodes for optimizing the material removal rate during die-sinking
EDM of stir-casted, Al6061/SiC- MMCs for Sustainable Manufacturing and Energy Applications, J. Green Engin.
11(1) (2021) 922–938.
[24] K. Tan, H. Wang and C. Wang, A decoupling control method for hybrid cascaded H-bridge inverter, IEEE 9th
Int. Power Electronics and Motion Control Conf. (IPEMC2020-ECCE Asia), (2020) 2469–2471.
[25] M. Thirumalai and V. Prakash, Design and implementation of hybrid multilevel inverter for high output efficiency,
Int. Conf. Smart Struct. Syst. (JCSSS-2013), Chennai, INDIA, (2013) 41–45.
[26] U. Yilmaz, A. Kircay and S. Borekci, PV system fuzzy logic MPPT method and PI control as a charge controller,
Renewable and Sustainable Energy Rev. 81 (2018) 994–1001.
Volume 13, Issue 1
March 2022
Pages 2395-2409
  • Receive Date: 06 September 2021
  • Revise Date: 01 October 2021
  • Accept Date: 18 November 2021
  • First Publish Date: 11 December 2021