Design of proportional-resonant controller with zero steady-state error for a single-phase grid-connected voltage source inverter with an LCL output filter

Ahmad Ali Nazeri, Peter Zacharias, Federico Martin Ibanez, Sakda Somkun

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

21 Citations (Scopus)

Abstract

The single-phase grid-connected voltage source inverters with LCL filters are widely implemented in the grid using traditional Proportional Integral (PI) controllers. The Proportional Resonant (PR) controller introduces new features such as tracking of the sinusoidal waveform with zero steady-state error and better disturbance rejection capability in comparison with the PI controller. The mentioned benefits lead to a better power factor and system stability. This paper proposes a comprehensive design methodology of the PR controller in an inverter with an LCL filter. Also, a comparison of the PR and PI controller is presented. In this analysis, the optimal values of the PR controller are found based on the phase margin of the entire control loop of the converter. The simulation of the 1.5 kVA VSC with an LCL filter with a PR controller in MATLAB/Simulink® and real-time simulator validates the design and shows the stability margin of the proposed methodology.

Original languageEnglish
Title of host publication2019 IEEE Milan PowerTech, PowerTech 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538647226
DOIs
Publication statusPublished - Jun 2019
Event2019 IEEE Milan PowerTech, PowerTech 2019 - Milan, Italy
Duration: 23 Jun 201927 Jun 2019

Publication series

Name2019 IEEE Milan PowerTech, PowerTech 2019

Conference

Conference2019 IEEE Milan PowerTech, PowerTech 2019
Country/TerritoryItaly
CityMilan
Period23/06/1927/06/19

Keywords

  • Proportional integral controller
  • Proportional resonant controller
  • Stationary reference frame
  • Total harmonic distortion
  • Voltage source inverter

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