Decoupled control of a four-leg inverter via a new 4x4 transformation matrix

被引：84

作者：

Ryan, MJ ^{[1
]}

De Doncker, RW

Lorenz, RD

机构：

[1] Capstone Turbine Corp, Syst & Power Elect Grp, Chatsworth, CA 91311 USA

[2] Inst Power Elect & Elect Drives, D-52066 Aachen, Germany

[3] Univ Wisconsin, Dept Elect & Comp Engn, Madison, WI 53706 USA

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2001年 / 16卷 / 05期

关键词：

current control; inverters; transforms; uninterruptible power systems; voltage control;

D O I：

10.1109/63.949502

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Four-Leg (3-phase 4-wire) inverters are developed to power unbalanced/nonlinear three-phase loads. A unique 4 x 4 decoupling transformation matrix is used that enables direct transformation between the four degree-of-freedom (DOF) leg-modulation space of the inverter and its corresponding 3-DOF output-voltage space. This is analogous to the well-known 3 x 3 "abc-qd " transformation developed for the three-leg inverter. Details of this new 4 x 4 "Quad" transform are provided, along with a depiction of the voltage-vectors produced. Advanced synchronous-frame control techniques are applied with this 4-to-3 "abcn-qdo" transform to create a UPS-style inverter with sinewave output. Experimental results for an 8.6 kVA prototype inverter are presented.

引用

页码：694 / 701

页数：8

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