应用于马达之电流误差补偿方法;A METHOD FOR COMPENSATING CURRENT ERROR

摘要

一种应用于马达之电流误差补偿方法，其包含撷取二轴量测电流；依据二轴量测电流与电阻值运算出量测电压；依据量测电压与二轴电压运算出误差电压值；判断马达之转速值是否大于高转速设定值与是否小于低转速设定值；在判断结果为否时，利用误差电压值进行一正序列处理以产生一正序列值，并利用误差电压值进行一负序列处理以产生一负序列值；依据正序列值与负序列值产生一序列误差值；对序列误差值进行一滤波处理以产生一滤波序列值；对滤波序列值进行一积分处理以产生一补偿误差电流值；使二轴量测电流与补偿误差电流值相减以产生一实际电流；使二轴电流与实际电流相减，藉以补偿二轴电流。; operating a measuring voltage value according to the measuring current and a resistance value; operating an error voltage value according to the measuring voltage value and a voltage; determining whether a rotation speed value is greater than a high speed threshold and smaller than a low speed threshold or not; generating a positive sequence value and a negative sequence value by executing a positive process and a negative process respectively according to the error voltage value; generating a sequence error value according to the positive sequence value and the negative sequence value; filtering the sequence error value to generate a filter sequence value; generating a compensation error current value by executing an integral process; generating a real current by subtraction between the measuring current and the compensation error current value; compensating a current by subtraction between the current and the real current.