Universal fractional-order design of linear phase lead compensation multirate repetitive control for PWM inverters

Liu, Z., Zhang, B. and Zhou, K. (2017) Universal fractional-order design of linear phase lead compensation multirate repetitive control for PWM inverters. IEEE Transactions on Industrial Electronics, 64(9), pp. 7132-7140. (doi:10.1109/TIE.2017.2686348)

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Abstract

Repetitive control (RC) with linear phase lead compensation provides a simple but very effective control solution for any periodic signal with a known period. Multirate repetitive control (MRC) with a downsampling rate can reduce the need of memory size and computational cost, and then leads to a more feasible design of the plug-in repetitive control systems in practical applications. However, with fixed sampling rate, both MRC and its linear phase lead compensator are sensitive to the ratio of the sampling frequency to the frequency of interested periodic signals: (1) MRC might fails to exactly compensate the periodic signal in the case of a fractional ratio; (2) linear phase lead compensation might fail to enable MRC to achieve satisfactory performance in the case of a low ratio. In this paper, a universal fractional-order design of linear phase lead compensation MRC is proposed to tackle periodic signals with high accuracy, fast dynamic response, good robustness, and cost-effective implementation regardless of the frequency ratio, which offers a unified framework for housing various RC schemes in extensive engineering application. An application example of programmable AC power supply is explored to comprehensively testify the effectiveness of the proposed control scheme.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Zhou, Dr Keliang
Authors: Liu, Z., Zhang, B., and Zhou, K.
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:IEEE Transactions on Industrial Electronics
Publisher:IEEE
ISSN:0278-0046
ISSN (Online):1557-9948
Published Online:22 March 2017
Copyright Holders:Copyright © 2017 IEEE
First Published:First published in IEEE Transactions on Industrial Electronics 64(9): 7132-7140
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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