A modified stationary reference frame-based predictive current control with zero steady-state error for LCL coupled inverter-based distribution generation systems

Khaled H.K. Ahmed, A. Massoud, S.J. Finney, B.W. Williams

Research output: Contribution to journalArticle

78 Citations (Scopus)

Abstract

This paper proposes a modified stationary reference frame-based predictive current controller with zero steady-state error for LCL coupled inverter-based distribution generation systems. Analytical expressions for the predictive current control error sources are investigated. The stability margin for the predictive current gain is derived. Online adaptive control for the grid voltage is embedded in the control system to eliminate steady-state real and reactive power errors. The grid voltage estimation expressions for sensorless operation are employed to enhance system robustness and performance. Finally, simulated and practical results verify the derived expressions and the proposed control system performance.
Original languageEnglish
Pages (from-to)1359 - 1370
Number of pages12
JournalIEEE Transactions on Industrial Electronics
Volume58
Issue number4
DOIs
Publication statusPublished - Apr 2011

Fingerprint

Electric current control
Control systems
Electric potential
Reactive power
Controllers

Keywords

  • adaptive control
  • predictive control
  • electric current control invertors
  • power grids
  • distributed power generation
  • robust control

Cite this

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abstract = "This paper proposes a modified stationary reference frame-based predictive current controller with zero steady-state error for LCL coupled inverter-based distribution generation systems. Analytical expressions for the predictive current control error sources are investigated. The stability margin for the predictive current gain is derived. Online adaptive control for the grid voltage is embedded in the control system to eliminate steady-state real and reactive power errors. The grid voltage estimation expressions for sensorless operation are employed to enhance system robustness and performance. Finally, simulated and practical results verify the derived expressions and the proposed control system performance.",
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AU - Finney, S.J.

AU - Williams, B.W.

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N2 - This paper proposes a modified stationary reference frame-based predictive current controller with zero steady-state error for LCL coupled inverter-based distribution generation systems. Analytical expressions for the predictive current control error sources are investigated. The stability margin for the predictive current gain is derived. Online adaptive control for the grid voltage is embedded in the control system to eliminate steady-state real and reactive power errors. The grid voltage estimation expressions for sensorless operation are employed to enhance system robustness and performance. Finally, simulated and practical results verify the derived expressions and the proposed control system performance.

AB - This paper proposes a modified stationary reference frame-based predictive current controller with zero steady-state error for LCL coupled inverter-based distribution generation systems. Analytical expressions for the predictive current control error sources are investigated. The stability margin for the predictive current gain is derived. Online adaptive control for the grid voltage is embedded in the control system to eliminate steady-state real and reactive power errors. The grid voltage estimation expressions for sensorless operation are employed to enhance system robustness and performance. Finally, simulated and practical results verify the derived expressions and the proposed control system performance.

KW - adaptive control

KW - predictive control

KW - electric current control invertors

KW - power grids

KW - distributed power generation

KW - robust control

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JF - IEEE Transactions on Industrial Electronics

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