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TI最新的clarke变换程序是否有误?



2相电流变换的clarke矩阵是对的,但是,下面给出3相电流的clarke变换:

// Clarke transform macro (with 3 currents)
//==========================================
#define CLARKE1_MACRO(v)									\
v.Alpha = v.As;											    \
v.Beta  = _IQmpy((v.Bs - v.Cs),_IQ(ONEbySQRT3));

可以看到 v.Alpha = v.As ,而实际上,v.Alpha  =(2/3) v.As  + (-1/3)v.As   + (-1/3)v.Cs 啊?

这是怎么回事?