Hilbert transform based control algorithm of the DG interface for voltage flicker mitigation

Distributed Generation (DG) is used widely in the modern distribution systems. This paper proposes a novel functionality of the interface between DG and the utility network to mitigate the voltage flicker and to regulate the voltage at the Point of Common Coupling (PCC) in addition to its main funct...

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Veröffentlicht in:IEEE transactions on power delivery 2005-04, Vol.20 (2), p.1129-1133
Hauptverfasser: Marei, M.I., Abdel-Galil, T.K., El-Saadany, E.F., Salama, M.M.A.
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container_issue 2
container_start_page 1129
container_title IEEE transactions on power delivery
container_volume 20
creator Marei, M.I.
Abdel-Galil, T.K.
El-Saadany, E.F.
Salama, M.M.A.
description Distributed Generation (DG) is used widely in the modern distribution systems. This paper proposes a novel functionality of the interface between DG and the utility network to mitigate the voltage flicker and to regulate the voltage at the Point of Common Coupling (PCC) in addition to its main function of controlling the power flow. A new control algorithm for the DG interface based on the Hilbert transform (HT) is presented. The HT is employed as an effective technique for tracking the voltage flicker levels in distribution systems. The mathematical simplicity of the proposed technique, compared with the commonly used algorithms in the literature, renders them competitive candidates for the on-line tracking of voltage flicker. The accurate tracking of the HT facilitates its implementation for the control of flicker mitigation devices. Simulation results are provided to verify the tracking capabilities of the HT and to evaluate the performance of the proposed DG interface for multifunction operation.
doi_str_mv 10.1109/TPWRD.2004.843461
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This paper proposes a novel functionality of the interface between DG and the utility network to mitigate the voltage flicker and to regulate the voltage at the Point of Common Coupling (PCC) in addition to its main function of controlling the power flow. A new control algorithm for the DG interface based on the Hilbert transform (HT) is presented. The HT is employed as an effective technique for tracking the voltage flicker levels in distribution systems. The mathematical simplicity of the proposed technique, compared with the commonly used algorithms in the literature, renders them competitive candidates for the on-line tracking of voltage flicker. The accurate tracking of the HT facilitates its implementation for the control of flicker mitigation devices. 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subjects Algorithms
Control algorithms
Control theory
Devices
Distributed generation interface
envelope tracking
Filters
flicker mitigation
Frequency measurement
Heat treatment
Hilbert transform
Load flow
Mathematical analysis
Power quality
Pulse width modulation inverters
Reactive power
Rendering (computer graphics)
Studies
Tracking
Transforms
Voltage control
Voltage flicker
Voltage fluctuations
Voltage measurement
title Hilbert transform based control algorithm of the DG interface for voltage flicker mitigation
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