Abstract
This paper has proposed a hybrid seven-level inverter topology with a boosting capability three times that of conventional seven-level inverter topologies. It contains ten number of active switches and an internal flying capacitor unit that develops a composition like the combination of T-type and neutral point clamped (NPC) inverter topologies. The proposed inverter topology increases dc link voltage utilization and reduces the total standing voltages across the power switches. In addition, self-voltage balancing of the floating capacitor is achieved through a simple level shifted PWM modulation technique. The dc link requirement of the proposed inverter topology is reduced by 66% when compared to the conventional seven-level inverters, and it can be more useful in industrial applications, including grid-tied renewable generation units. The working methodology and steady state analysis of the topology are presented, and its operation is validated through the simulation results performed in both Matlab/Simulink and PSIM platforms. In addition, experimental results verify the proposed inverter topology.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Akagi H (2017) Multilevel converters: fundamental circuits and systems. Proc IEEE 105(11):2048–2065
Anand V, Singh V (2022) A 13-level switched-capacitor multilevel inverter with single dc source. IEEE J Emerg Sel TopPower Electron 10(2):1575–1586
Barzegarkhoo R, Forouzesh M, Lee SS, Blaabjerg F, Siwakoti YP (2022) Switched-capacitor multilevel inverters: a comprehensive review. IEEE Trans Power Electron 37(9):11209–11243
Bhatnagar P, Singh AK, Gupta KK, Siwakoti YP (2022) a switched-capacitors-based 13-level inverter. IEEE Trans Power Electron 37(1):644–658
Bruckner T, Bemet S (2001) Loss balancing in three-level voltage source inverters applying active NPC switches. In: 2001 IEEE 32nd annual power electronics specialists conference (IEEE Cat. No.01CH37230), Vancouver, BC, vol. 2, pp 1135–1140
Daula Siddique M, Aslam Husain M, Iqbal A, Mekhilef S, Riyaz A (2023) Single-phase 9l switched-capacitor boost multilevel inverter (9L-SC-BMLI) topology. IEEE Trans Ind Appl 59(1):994–1001
Feng C, Liang J, Agelidis V (2007) Modified phase-shifted PWM control for flying capacitor multilevel converters. IEEE Trans Power Electron 22(1):178–185
Kouro S, Malinowski M, Gopakumar K, Pou J, Franquelo LG, Wu B, Rodriguez J, Perez MA, Leon JI (2010) Recent advances and industrial applications of multilevel converters. IEEE Trans Ind Electron 57(8):2553–2580
Lee SS, Lee K (2019) Dual-T-type seven-level boost active-neutral-point-clamped inverter. IEEE Trans Power Electron 34(7):6031–6035
Lee SS, Bak Y, Kim S, Joseph A, Lee K (2019) New family of boost switched-capacitor seven-level inverters (BSC7LI). IEEE Trans Power Electron 34(11):10471–10479
Lee SS, Lim CS, Siwakoti YP, Lee K-B (2020) Hybrid 7-level boost active-neutral-point- clamped (H-7L-BANPC) inverter. IEEE Trans Circuits Syst II Express Briefs 67(10):2044–2048
Leon JI, Vazquez S, Franquelo LG (2017) Multilevel converters: control and modulation techniques for their operation and industrial applications. Proc IEEE 105(11):2066–2081
Palanisamy A et al. (2018) A new three-level three-phase boost PWM inverter for PV applications. In: IEEE energy conversion congress and exposition (ECCE), Portland, OR, pp 7191–7196
Peng FZ (2001) A generalized multilevel inverter topology with self voltage balancing. IEEE Trans Ind Appl 37(2):611–618
Perez MA, Bernet S, Rodriguez J, Kouro S, Lizana R (2012) Circuit topologies, modelling, control schemes, and applications of modular multilevel converters. IEEE Trans Power Electron 30(1):652–660
Schweizer M, Friedli T, Kolar JW (2012) Comparative evaluation of advanced three-phase three-level inverter/converter topologies against two-level systems. IEEE Trans Ind Electron 60(12):5515–5527
Sheng W, Ge Q (2018) A novel seven-level ANPC converter topology and its commutating strategies. IEEE Trans Power Electron 33(9):7496–7509
Siwakoti YP (2018) A new six-switch five-level boost-active neutral point clamped (5L-Boost-ANPC) inverter. In: IEEE applied power electronics conference and exposition (APEC), San Antonio, TX, pp 2424–2430
Siwakoti YP, Mahajan A, Rogers DJ, Blaabjerg F (2019) A novel seven-level active neutral-point-clamped converter with reduced active switching devices and dc-link voltage. IEEE Trans Power Electron 34(11):10492–10508
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare that they have no conflicts of interest.
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Mohamed Junaid, K.A., Marimuthu, G., Karthika, G. et al. Combined T-type and NPC Seven-Level Boost Active Neutral Point Clamped Inverter for Medium Voltage Applications. Iran J Sci Technol Trans Electr Eng 48, 201–212 (2024). https://doi.org/10.1007/s40998-023-00653-2
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s40998-023-00653-2