NDLI: Application of the New Quasi-Linear Control Theory to the AC Current Shaping and DC Voltage Regulation of a Three-Phase boost-type AC/DC Vienna Converter Under Very Severe Operating Conditions

Content Provider	IEEE Xplore Digital Library
Author	Youssef, N.B.H. Al-Haddad, K.
Copyright Year	2007
Description	Author affiliation: Ecole de Technol. Super., Montreal (Youssef, N.B.H.; Al-Haddad, K.)
Abstract	In the present paper, design and numerical implementation of a multi-loops quasi-linear control technique is proposed for a three-phase three-level boost-type AC/DC Vienna converter. Acquiring high stability and perfect rejection of disturbances and initial conditions, the lately introduced quasi-linear theory is very suitable for power electronic circuits, subjected to diverse operating disturbances and parametric changes. Inner feedback loops ensures dq currents tracking and cross-decoupling cancellation with respect to the dq control inputs, thus adequately controlling the power flow from the grid to the load. In the same inner loop, the zero-sequence component of control inputs ensures the symmetry of split DC bus voltages. The obtained dqo components for control variables, transformed into their abc equivalents to generate the converter switches duty cycle profiles, are, thereafter, pulse-width modulated, thus yielding the I.G.B.Ts gating signals. The outer voltage loop is designated to ensure total DC voltage regulation by adjusting the magnitude of the current reference for the inner current loops. The proposed control strategy is based on a previously established and experimentally validated small signal model, expressed in the dqo reference frame. At a first stage, the proposed theoretical control approach is simulated using the converter switching function model built on SIMULINK/ Matlab. Then, the proposed control scheme is experimentally validated on a 1.5 k W laboratory prototype using the DS 1104 controller board of dSPACE. Low AC line currents total harmonic distortion (THD), unity power factor (PF) operation and regulated split DC bus voltages are achieved, for a wide clan of operating conditions, including severe utility and load disturbances.
Starting Page	1336
Ending Page	1343
File Size	1399979
Page Count	8
File Format	PDF
ISBN	9781424408122
DOI	10.1109/EURCON.2007.4400225
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-09-09
Publisher Place	Poland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Control theory Voltage control Analog-digital conversion Electric variables control Pulse width modulation converters Switching converters Mathematical model Circuit stability Power system stability Power electronics real-time processing AC-DC power conversion power conversion harmonics multi-level converters multivariable systems time-varying systems robustness tracking loops
Content Type	Text
Resource Type	Article

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