High bandwidth voltage and current control design for voltage source converters


Autoria(s): Ghosh, Arindam; Ledwich, Gerard
Contribuinte(s)

Duke, Richard

Data(s)

05/12/2010

Resumo

In this paper, two different high bandwidth converter control strategies are discussed. One of the strategies is for voltage control and the other is for current control. The converter, in each of the cases, is equipped with an output passive filter. For the voltage controller, the converter is equipped with an LC filter, while an output has an LCL filter for current controller. The important aspect that has been discussed the paper is to avoid computation of unnecessary references using high-pass filters in the feedback loop. The stability of the overall system, including the high-pass filters, has been analyzed. The choice of filter parameters is crucial for achieving desirable system performance. In this paper, the bandwidth of achievable performance is presented through frequency (Bode) plot of the system gains. It has been illustrated that the proposed controllers are capable of tracking fundamental frequency components along with low-order harmonic components. Extensive simulation results are presented to validate the control concepts presented in the paper.

Formato

application/pdf

Identificador

http://eprints.qut.edu.au/39327/

Publicador

IEEE Xplore

Relação

http://eprints.qut.edu.au/39327/1/c39327.pdf

http://www.epecentre.ac.nz/aupec2010.htm

Ghosh, Arindam & Ledwich, Gerard (2010) High bandwidth voltage and current control design for voltage source converters. In Duke, Richard (Ed.) Proceedings of the 20th Australasian Universities Power Engineering Conference - Power Quality for the 21st Century, IEEE Xplore , University of Canterbury, Christchurch, New Zealand, pp. 1-6.

Direitos

Copyright 2010 IEEE.

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Fonte

Faculty of Built Environment and Engineering; School of Engineering Systems

Palavras-Chave #090600 ELECTRICAL AND ELECTRONIC ENGINEERING #Voltage Source Converters #Voltage Control #Current Control #Bandwidth #Bode Plot
Tipo

Conference Paper