Lyapunov-function-based control method for three-phase grid-tied quasi-z-source inverter with LCL filter

Hasan Komurcugil, Sertac Bayhan, Haitham Abu-Rub

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

3 Citations (Scopus)

Abstract

In this work, a Lyapunov-function based control method for three-phase grid-tied LCL-filtered quasiz- source source inverters (qZSIs) is proposed. The mathematical model of grid-tied qZSI is modeled in the synchronously rotating dq-frame. Motivated from the energy distribution in qZSI, an energylike function (referred to as Lyapunov-function) is formed. Then, using Lyapunov's direct method a Lyapunov-function based control is described to guarantee the global stability of the closed-loop system. However, since the Lyapunov-function based control method involves a single-loop, its damping performance is not satisfactory. Therefore, the Lyapunov-function based control approach is modified by adding a second loop involving the capacitor voltage feedback into the control variable. The proposed control method requires the computation of ac-side reference inverter current and capacitor voltages which can be obtained by using the ac-side reference grid currents. The control of dc-side variables is achieved by using the traditional simple boost control technique. The generated shoot through state is combined with the pulse width modulation (PWM) signals generated from the proposed control method. Computer simulation results are presented to show the performance of the proposed control method in the steady-state and transients.

Original languageEnglish
Title of host publication2017 19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9789075815276
DOIs
Publication statusPublished - 6 Nov 2017
Event19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe - Warsaw, Poland
Duration: 11 Sep 201714 Sep 2017

Publication series

Name2017 19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe
Volume2017-January

Other

Other19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe
CountryPoland
CityWarsaw
Period11/9/1714/9/17

Keywords

  • Active damping
  • Non-linear control
  • Voltage source inverter
  • Z-source converter

ASJC Scopus subject areas

  • Mechanical Engineering
  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology

Fingerprint Dive into the research topics of 'Lyapunov-function-based control method for three-phase grid-tied quasi-z-source inverter with LCL filter'. Together they form a unique fingerprint.

  • Cite this

    Komurcugil, H., Bayhan, S., & Abu-Rub, H. (2017). Lyapunov-function-based control method for three-phase grid-tied quasi-z-source inverter with LCL filter. In 2017 19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe [8099089] (2017 19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe; Vol. 2017-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.23919/EPE17ECCEEurope.2017.8099089