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Experimental validation of a flatness-based control for a voltage source converter

Posted on:2008-12-27Degree:M.ScType:Thesis
University:University of Alberta (Canada)Candidate:Song, EdwardFull Text:PDF
GTID:2442390005467390Subject:Engineering
Abstract/Summary:
A voltage source converter (VSC) is a power electronic device used in many applications including wind turbine generators; induction motor drives, and power transmission and delivery. This thesis develops a high performance control for a 3-phase 6-pulse IGBT-based VSC intended for power transmission and delivery applications. The industrial standard for VSC control is a. Proportional-Integral (PI) control scheme based on a linear approximate system model. Since it is based on a linear approximate model, only local performance is ensured. In order to provide performance over a range of operating conditions this thesis proposes a nonlinear flatness-based control which avoids the linearization step. A full experimental validation of the proposed control is given. This thesis involves a collaborative effort between the Applied Nonlinear Control Laboratory (ANCL) and the Real-Time eXperinlental LABoratory (RTX-LAB) at the University of Alberta.
Keywords/Search Tags:VSC
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