通过新的4/ sp1 × /4变换矩阵实现4腿逆变器的解耦控制

30th Annual IEEE Power Electronics Specialists Conference. Record. (Cat. No.99CH36321) Pub Date : 1999-07-01 DOI:10.1109/PESC.1999.789001

M. J. Ryan, R. D. De Doncker, R. Lorenz

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引用次数: 49

摘要

四腿(三相四线)逆变器是为不平衡/非线性三相负载供电而开发的。采用独特的4/spl倍/4解耦变换矩阵，实现了逆变器的四自由度(DOF)支腿调制空间与其相应的三自由度输出电压v空间之间的直接变换。这类似于众所周知的3/spl倍/3“abc-qd”变换开发的3腿逆变器。提供了这种新的4/spl倍/4“四分频”变换的细节，以及产生的电压矢量的描述。先进的同步帧控制技术应用于这种4到3“abcn-qdo”变换，以创建具有正弦波输出的ups式逆变器。给出了8.6 kV逆变器样机的实验结果。

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Decoupled control of a 4-leg inverter via a new 4/spl times/4 transformation matrix

Four-leg (3-phase 4-wire) inverters are developed to power unbalanced/nonlinear three-phase loads. A unique 4/spl times/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 v space. This is analogous to the well-known 3/spl times/3 "abc-qd" transformation developed for the 3-leg inverter. Details of this new 4/spl times/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 kV a prototype inverter are presented.

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30th Annual IEEE Power Electronics Specialists Conference. Record. (Cat. No.99CH36321)

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