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PWM SCHEME BASED ON SPACE VECTOR MODULATION FOR THREE-PHASE RECTIFIER CONVERTERS
PWM SCHEME BASED ON SPACE VECTOR MODULATION FOR THREE-PHASE RECTIFIER CONVERTERS
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机译:基于空间矢量调制的三相整流器PWM方案
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摘要
A matrix rectifier includes a bridge x defined by phases A and B and a bridge y defined by phases A and C, in which each input phases A, B, and C includes two bi-directional switches connected in series. A method of operating the matrix rectifier includes operating the bridges x and y as independent full-bridge phase-shifted converters in each 60° interval between two successive zero-voltage crossings of the input phases A, B, and C. In a first 30° sector of each 60° interval, the bridges x and y are operated in a first vector sequence in every switching period, and the first vector sequence is divided into a sequence of x+, y+, 0, x−, y−, 0.
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机译:矩阵整流器包括由相A和B定义的桥x和由相A和C定义的桥y,其中每个输入相A,B和C包括两个串联连接的双向开关。一种操作矩阵整流器的方法,包括在输入相A,B和C的两个连续零电压交叉点之间的每个60°间隔中,将桥x和y作为独立的全桥相移转换器进行操作。在前30个中每个60°间隔的°扇区,桥x和y在每个开关周期中以第一矢量序列操作,并且将第一矢量序列划分为 x + Sub>, y + Sub>, 0 Sub>, x Sub> − Sup> Sub>, y Sub> - Sup> Sub >,<图像alt =“ custom-character” file =“ US20180262103A1-20180913-P00001.GIF” he =“ 4.23mm” imgContent =“ character” imgFormat =“ GIF” wi =“ 1.78mm” /> 0 Sub>。
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