Sliding mode control of a single phase transformer-less PV inverter with active power decoupling

Jinia Roy, Yinglai Xia, Raja Ayyanar

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

6 Scopus citations

Abstract

This paper proposes a fixed frequency based sliding mode (SM) controller for transformer-less single phase inverter for photovoltaic (PV) application with active power decoupling minimizing the capacitance requirement. Unlike conventional power decoupling techniques in full bridge converters, the proposed technique incorporates a large sinusoidal swing of the half-bridge capacitor voltages and a limited ripple on the DC-link to address the power decoupling. This invokes coupling and complexity in the system making the control of the converter a challenging task. SM control technique is used to provide a robust and stable controller platform for this converter. Extensive simulation results are provided for verification of the SM controller performance and to support the mathematical formulation of the fixed frequency based non-linear sliding mode control for this converter in standalone operation mode.

Original languageEnglish (US)
Title of host publication2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages23-29
Number of pages7
Volume2017-January
ISBN (Electronic)9781509029983
DOIs
StatePublished - Nov 3 2017
Event9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017 - Cincinnati, United States
Duration: Oct 1 2017Oct 5 2017

Other

Other9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017
CountryUnited States
CityCincinnati
Period10/1/1710/5/17

Keywords

  • Active power decoupling
  • Common mode leakage current
  • Fixed frequency sliding mode
  • Non-linear control
  • Single-phase transformer-less string inverter
  • Sliding mode controller
  • Switching surface

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Renewable Energy, Sustainability and the Environment
  • Control and Optimization

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  • Cite this

    Roy, J., Xia, Y., & Ayyanar, R. (2017). Sliding mode control of a single phase transformer-less PV inverter with active power decoupling. In 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017 (Vol. 2017-January, pp. 23-29). [8095756] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2017.8095756