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Analysis and design of a multiple-loop control system for a hybrid active filter

journal contribution
posted on 06.12.2017, 00:00 by Steven SeniniSteven Senini, Peter WolfsPeter Wolfs
This paper investigates the control of a hybrid active filter consisting of a single tuned resonant branch and an active element. This filter is capable of suppressing multiple harmonics using a multiple-loop control system. Linear continuous-time models are first developed in the dq reference frame. This results in a two-input/two-output system with cross coupling. The continuous model is discretized and the design of a multiple-loop discrete-time controller is examined. Wideband current feedback loops are shown to affect the coupling between the d and q axis controllers and provide a resistance-like damping effect. Variations in stability with processing delay times are examined. Finally, this work is extended to include narrowband harmonic specific controls. The results of the control study are confirmed by simulation and experimental results.

Funding

Category 1 - Australian Competitive Grants (this includes ARC, NHMRC)

History

Volume

49

Issue

6

Start Page

1283

End Page

1292

Number of Pages

10

ISSN

0278-0046

Location

New York, NY

Publisher

IEEE

Language

en-aus

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

James Goldston Faculty of Engineering and Physical Systems;

Era Eligible

No

Journal

IEEE transactions on industrial electronics.