摘要
本文提出了一种非正交变换和线性变换相结合的矢量合成方法:将任意参考电压矢量变换到60°非正交坐标系中,根据其坐标求出由第一扇区的两个基本长矢量合成参考电压矢量的虚拟作用时间,并确定三个最近矢量(Nearest Three Vector,NTV),而这三个邻近矢量的作用时间则可以由虚拟作用时间通过线性变换得到,这样使参考电压的合成变得简单易行。仿真和实验结果证明了该方法的正确性。
This paper presented a novel algorithm combining non-orthogonal coordinates transformation and linear transformation. By means of this method any voltage vector can be transformed into the 60°non-orthogonal coordi- nate system, and the virtual dwell time of the two basic long vector which synthesizing this reference voltage vector as well as the nearest three vectors （NTV） can be simply deduced from its coordinate figure. The dwell time of these NTV can be acquired from the virtual time by using a linear transition. Simulation and experimental results verified the validity of the proposed approach.
出处
《电工电能新技术》
CSCD
北大核心
2011年第4期5-7,88,共4页
Advanced Technology of Electrical Engineering and Energy
关键词
非正交坐标变换
线性变换
多电平
虚拟作用时间
non-orthogonal coordinates transformation
linear transition
multi-level
virtual dwell time
