Self-tuned feed-forward compensation for harmonic reduction in single-phase low-voltage inverters

Lakshmanan, Padmavathi and Janakiraman, Panapakkam Arumugam 2011. Self-tuned feed-forward compensation for harmonic reduction in single-phase low-voltage inverters. IEEE Transactions on Industrial Electronics 58 (10) , pp. 4753-4762. 10.1109/TIE.2011.2109337

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Abstract

A new self-tuned feed-forward control strategy for low-voltage single-phase inverters to reduce the harmonic distortion in the output voltage is proposed. A discrete composite observer enables separate and independent control of the fundamental and harmonic components of the distorted inverter voltage and load current. The observer also facilitates the application of single-phase dq transformation by providing the fundamental in-phase and quadrature signals. In addition, the extracted voltage and load current harmonics from the observer are used for online identification of the series inductance and the equivalent resistance of the LC filter. While the feed-forward compensation is made self-tuned, the leftover harmonic distortion is reduced by small harmonic feedback. Simulation and experimental realization with Cyclone II field-programmable gate array have been carried out.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Engineering
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Uncontrolled Keywords:	Compensation ; Feedback ; Field programmable gate arrays ; Filters ; Harmonic distortion ; Invertors ; Observers ; Phase transformations
Publisher:	Institute of Electrical and Electronics Engineers
ISSN:	0278-0046
Last Modified:	21 Oct 2016 03:48
URI:	https://orca.cardiff.ac.uk/id/eprint/52265

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