Digital repetitive learning controller for three-phase CVCF PWMinverter
Keliang Zhou
Danwei Wang
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ.;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Aug 2001
Volume: 48,
Issue: 4
On page(s): 820-830
ISSN: 0278-0046
References Cited: 27
CODEN: ITIED6
INSPEC Accession Number: 7007136
Digital Object Identifier: 10.1109/41.937415
Current Version Published: 2002-08-07
Abstract
In this paper, a plug-in digital repetitive leaning control scheme
is proposed for three-phase constant-voltage constant-frequency (CVCF)
pulsewidth modulation inverters to achieve high-quality sinusoidal
output voltages. In the proposed control scheme, the repetitive
controller (RC) is plugged into the stable
one-sampling-ahead-preview-controlled three-phase CVCF inverter system
using only two voltage sensors. The RC is designed to eliminate periodic
disturbance and/or track periodic reference signal with zero tracking
error, The design theory of plug-in repetitive learning controller is
described systematically and the stability analysis or overall system is
discussed. The merits of the controlled systems include features of
minimized total harmonic distortion, robustness to parameter
uncertainties, fast response, and fewer sensors. Simulation and
experimental results are provided to illustrate the effectiveness of the
proposed scheme
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