Supplementary control for virtual synchronous machine based on adaptive dynamic programming

Naresh Malla, Dipesh Shrestha, Zhen Ni, Reinaldo Tonkoski

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

11 Scopus citations

Abstract

Virtual synchronous machine (VSM) can be used in micro-grids (MGs) for supporting virtual inertia to mitigate frequency fluctuations in the system. The performance of VSM depends on the performance of the current controlled voltage source inverter. Generally used proportional-integral (PI) controller has limited transient performance in current control. Adaptive dynamic programming (ADP) controller has been investigated, designed and tested to improve transient stability in the electric power system. In this paper, ADP controller has been proposed as a supplementary controller for fine tuning conventional PI current controller thereby improving the performance of VSM. The grid connected inverter system was simulated in MATLAB/Simulink to analyze transient stability problems. ADP as a supplementary controller not only reduced the overshoot of d-axis current at sudden load changes but also increased the speed of the current control. Furthermore, the system was tested for single phase line to ground fault and performed well based on the proposed ADP supplementary control approach.

Original languageEnglish
Title of host publication2016 IEEE Congress on Evolutionary Computation, CEC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1998-2005
Number of pages8
ISBN (Electronic)9781509006229
DOIs
StatePublished - 14 Nov 2016
Externally publishedYes
Event2016 IEEE Congress on Evolutionary Computation, CEC 2016 - Vancouver, Canada
Duration: 24 Jul 201629 Jul 2016

Publication series

Name2016 IEEE Congress on Evolutionary Computation, CEC 2016

Conference

Conference2016 IEEE Congress on Evolutionary Computation, CEC 2016
Country/TerritoryCanada
CityVancouver
Period24/07/1629/07/16

Keywords

  • Adaptive dynamic programming (ADP)
  • Pulse width modulation (PWM)
  • Supplementary controller
  • Virtual synchronous machine (VSM)

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