Control and efficient operation of low cost multi PV-based LLC resonant microinverters

Abdelkader Bousselham, Ali Elrayyah

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

Abstract

The ability to interface a number of PV modules with the grid through a single inverter can help reduce the system cost. More than one PV modules could be interfaced with the same microinverter to reduce the cost and maintain the high energy harvest of microinverters. In this paper, a highly efficient topology and control system structure are proposed to interface a number of PV modules with one LLC resonant based microinverter. The operation concept of traditional resonant converters is based on applying an alternating a square voltage wave at the input of the resonate converter from one source, however in this paper, a stair-case like waveform is applied at the converter input by driving more than one PV module. The duration of keeping every PV module connected to the converter depends on its maximum power point, and thus distributed control could be achieved for the various PV modules. The proposed topology is developed in a way that minimizes the switching and the conduction losses. The operation and the system parameters design procedure are covered in the paper while its effectiveness is verified through simulation studies.

Original languageEnglish
Title of host publication2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-6
Number of pages6
ISBN (Electronic)9781509056057
DOIs
Publication statusPublished - 25 May 2018
Event44th IEEE Photovoltaic Specialist Conference, PVSC 2017 - Washington, United States
Duration: 25 Jun 201730 Jun 2017

Other

Other44th IEEE Photovoltaic Specialist Conference, PVSC 2017
CountryUnited States
CityWashington
Period25/6/1730/6/17

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Topology
Stairs
Costs
Control systems
Electric potential

Keywords

  • Maximum power point tracking
  • Microinverter
  • Multi-PV
  • Resonant converter

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

Bousselham, A., & Elrayyah, A. (2018). Control and efficient operation of low cost multi PV-based LLC resonant microinverters. In 2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017 (pp. 1-6). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC.2017.8366812

Control and efficient operation of low cost multi PV-based LLC resonant microinverters. / Bousselham, Abdelkader; Elrayyah, Ali.

2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017. Institute of Electrical and Electronics Engineers Inc., 2018. p. 1-6.

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

Bousselham, A & Elrayyah, A 2018, Control and efficient operation of low cost multi PV-based LLC resonant microinverters. in 2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017. Institute of Electrical and Electronics Engineers Inc., pp. 1-6, 44th IEEE Photovoltaic Specialist Conference, PVSC 2017, Washington, United States, 25/6/17. https://doi.org/10.1109/PVSC.2017.8366812
Bousselham A, Elrayyah A. Control and efficient operation of low cost multi PV-based LLC resonant microinverters. In 2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017. Institute of Electrical and Electronics Engineers Inc. 2018. p. 1-6 https://doi.org/10.1109/PVSC.2017.8366812
Bousselham, Abdelkader ; Elrayyah, Ali. / Control and efficient operation of low cost multi PV-based LLC resonant microinverters. 2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017. Institute of Electrical and Electronics Engineers Inc., 2018. pp. 1-6
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