An enhanced PWM method for loss balancing of five level T-type inverter in PV systems

Mokhtar Aly; Emad M. Ahmed; Mohamed Orabi; Masahito Shoyama

doi:10.1109/APEC.2018.8341373

An enhanced PWM method for loss balancing of five level T-type inverter in PV systems

Mokhtar Aly, Emad M. Ahmed, Mohamed Orabi, Masahito Shoyama

Applied Energy Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

Multilevel inverters have attracted much industry and research concerns in photovoltaic (PV) applications. Although, it is demonstrated that power switching devices are subjected to unequal distribution of power losses and the reliability of multilevel inverters becomes low in accordance. Therefore, a new pulse width modulation (PWM) method is proposed in this paper for loss balancing in single phase five level inverters. The proposed method swaps the utilization of power components through the line period using the redundancy property between the switching states of T-type multilevel inverters. In addition, natural balance of voltages over DC link capacitors is achieved using the proposed method. The superiority of the proposed method is verified using simulation and experimental prototypes.

Original language	English
Title of host publication	APEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	2530-2535
Number of pages	6
ISBN (Electronic)	9781538611807
DOIs	https://doi.org/10.1109/APEC.2018.8341373
Publication status	Published - Apr 18 2018
Event	33rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2018 - San Antonio, United States Duration: Mar 4 2018 → Mar 8 2018

Publication series

Name	Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume	2018-March

Other

Other	33rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2018
Country/Territory	United States
City	San Antonio
Period	3/4/18 → 3/8/18

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1109/APEC.2018.8341373

Cite this

Aly, M., Ahmed, E. M., Orabi, M., & Shoyama, M. (2018). An enhanced PWM method for loss balancing of five level T-type inverter in PV systems. In APEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition (pp. 2530-2535). (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC; Vol. 2018-March). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APEC.2018.8341373

An enhanced PWM method for loss balancing of five level T-type inverter in PV systems. / Aly, Mokhtar; Ahmed, Emad M.; Orabi, Mohamed; Shoyama, Masahito.

APEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition. Institute of Electrical and Electronics Engineers Inc., 2018. p. 2530-2535 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC; Vol. 2018-March).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Aly, M, Ahmed, EM, Orabi, M & Shoyama, M 2018, An enhanced PWM method for loss balancing of five level T-type inverter in PV systems. in APEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition. Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC, vol. 2018-March, Institute of Electrical and Electronics Engineers Inc., pp. 2530-2535, 33rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2018, San Antonio, United States, 3/4/18. https://doi.org/10.1109/APEC.2018.8341373

Aly M, Ahmed EM, Orabi M, Shoyama M. An enhanced PWM method for loss balancing of five level T-type inverter in PV systems. In APEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition. Institute of Electrical and Electronics Engineers Inc. 2018. p. 2530-2535. (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC). https://doi.org/10.1109/APEC.2018.8341373

Aly, Mokhtar ; Ahmed, Emad M. ; Orabi, Mohamed ; Shoyama, Masahito. / An enhanced PWM method for loss balancing of five level T-type inverter in PV systems. APEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition. Institute of Electrical and Electronics Engineers Inc., 2018. pp. 2530-2535 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC).

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AB - Multilevel inverters have attracted much industry and research concerns in photovoltaic (PV) applications. Although, it is demonstrated that power switching devices are subjected to unequal distribution of power losses and the reliability of multilevel inverters becomes low in accordance. Therefore, a new pulse width modulation (PWM) method is proposed in this paper for loss balancing in single phase five level inverters. The proposed method swaps the utilization of power components through the line period using the redundancy property between the switching states of T-type multilevel inverters. In addition, natural balance of voltages over DC link capacitors is achieved using the proposed method. The superiority of the proposed method is verified using simulation and experimental prototypes.

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An enhanced PWM method for loss balancing of five level T-type inverter in PV systems

Abstract

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UN SDGs

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