Advanced Control of Three-Phase Four-Wire Inverters using Feedback Linearization under Unbalanced and Nonlinear Load Conditions Vo, Nguyen Qui Tu ; Lee, Dong-Choon ; Dept. of Electrical Eng., Yeungnam University KOREA -AUGUST 2013

Advanced Control of Three-Phase Four-Wire Inverters using Feedback
Linearization under Unbalanced and Nonlinear Load Conditions
Nguyen Qui Tu Vo1, and Dong-Choon Lee
Dept. of Electrical Eng., Yeungnam University-KOREA
 Journal title : The Transactions of the Korean Institute of Power Electronics
Volume 18, Issue ,4,  2013, pp.333-341
Publisher : The Korean Institute of Power Electronics
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.
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