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http://dx.doi.org/10.6113/TKPE.2013.18.4.333

Advanced Control of Three-Phase Four-Wire Inverters using Feedback Linearization under Unbalanced and Nonlinear Load Conditions  

Vo, Nguyen Qui Tu (R&D Team, Dawonsys Co., Ltd.)
Lee, Dong-Choon (Dept. of Electrical Eng., Yeungnam University)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.18, no.4, 2013 , pp. 333-341 More about this Journal
Abstract
In this paper, a feedback linearization control is proposed to regulate the output voltages of a three-phase four-wire inverter under the unbalanced and nonlinear load conditions. First, the nonlinear model of system including the output LC filters is derived in the d-q-0 synchronous reference frame. Then, the system is linearized by the multi-input multi-output feedback linearization. The tracking controllers for d-q-0-components of three-phase line-to-neutral load voltages are designed by linear control theory. The experimental results have shown that the proposed control method gives the good performance in response to the load conditions.
Keywords
feedback linearization; nonlinear load; three-phase four-wire inverter; unbalanced load;
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Times Cited By KSCI : 3  (Citation Analysis)
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