An improved model predictive controller for highly reliable grid connected photovoltaic multilevel inverters

Mokhtar Aly, Emad M. Ahmed, Masahito Shoyama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Multilevel Inverters play key role in grid integration of photovoltaic (PV) systems. Although power semiconductor devices in multilevel inverters represent the most expensive and vulnerable parts according to the recent reliability surveys. Thermal stresses in power semiconductor devices represent the main cause of their failures. Therefore, improved controllers with lower thermal stresses are highly demanded. Conventional finite control set model predictive control (MPC) utilizes a high sampling rate to select the optimum switching state from all possible states. Consequently, high power losses and high thermal stresses are produced in this type. This paper introduces an improved model predictive controller (MPC) for preserving high reliability for grid connected single phase full bridge five level T-type inverter. The proposed controller selects the optimum switching sequence to drive the inverter from a set of switching sequences with an optimized switching transitions. The proposed MPC features constant switching frequency with minimized switching transitions of power devices and voltage balance of DC-link capacitors. The results of the designed and implemented case study are presented to validate the superiority of the proposed controller.

Original languageEnglish
Title of host publication2017 IEEE International Telecommunications Energy Conference
Subtitle of host publicationDriving Innovation in ICT Energy Infrastructure, INTELEC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages450-455
Number of pages6
ISBN (Electronic)9781538610183
DOIs
Publication statusPublished - Dec 14 2017
Event39th IEEE International Telecommunications Energy Conference, INTELEC 2017 - Broadbeach, Australia
Duration: Oct 22 2017Oct 26 2017

Publication series

NameINTELEC, International Telecommunications Energy Conference (Proceedings)
Volume2017-October
ISSN (Print)0275-0473

Other

Other39th IEEE International Telecommunications Energy Conference, INTELEC 2017
CountryAustralia
CityBroadbeach
Period10/22/1710/26/17

Fingerprint

Controllers
Thermal stress
Model predictive control
Switching frequency
Capacitors
Sampling
Electric potential
Power semiconductor devices

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Aly, M., Ahmed, E. M., & Shoyama, M. (2017). An improved model predictive controller for highly reliable grid connected photovoltaic multilevel inverters. In 2017 IEEE International Telecommunications Energy Conference: Driving Innovation in ICT Energy Infrastructure, INTELEC 2017 (pp. 450-455). (INTELEC, International Telecommunications Energy Conference (Proceedings); Vol. 2017-October). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/INTLEC.2017.8214177

An improved model predictive controller for highly reliable grid connected photovoltaic multilevel inverters. / Aly, Mokhtar; Ahmed, Emad M.; Shoyama, Masahito.

2017 IEEE International Telecommunications Energy Conference: Driving Innovation in ICT Energy Infrastructure, INTELEC 2017. Institute of Electrical and Electronics Engineers Inc., 2017. p. 450-455 (INTELEC, International Telecommunications Energy Conference (Proceedings); Vol. 2017-October).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Aly, M, Ahmed, EM & Shoyama, M 2017, An improved model predictive controller for highly reliable grid connected photovoltaic multilevel inverters. in 2017 IEEE International Telecommunications Energy Conference: Driving Innovation in ICT Energy Infrastructure, INTELEC 2017. INTELEC, International Telecommunications Energy Conference (Proceedings), vol. 2017-October, Institute of Electrical and Electronics Engineers Inc., pp. 450-455, 39th IEEE International Telecommunications Energy Conference, INTELEC 2017, Broadbeach, Australia, 10/22/17. https://doi.org/10.1109/INTLEC.2017.8214177
Aly M, Ahmed EM, Shoyama M. An improved model predictive controller for highly reliable grid connected photovoltaic multilevel inverters. In 2017 IEEE International Telecommunications Energy Conference: Driving Innovation in ICT Energy Infrastructure, INTELEC 2017. Institute of Electrical and Electronics Engineers Inc. 2017. p. 450-455. (INTELEC, International Telecommunications Energy Conference (Proceedings)). https://doi.org/10.1109/INTLEC.2017.8214177
Aly, Mokhtar ; Ahmed, Emad M. ; Shoyama, Masahito. / An improved model predictive controller for highly reliable grid connected photovoltaic multilevel inverters. 2017 IEEE International Telecommunications Energy Conference: Driving Innovation in ICT Energy Infrastructure, INTELEC 2017. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 450-455 (INTELEC, International Telecommunications Energy Conference (Proceedings)).
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