TI PMSM 例程中的电流检测模块中的电流怎么没有标幺化呢
TI PMSM 例程中的电流检测模块中的电流怎么没有标幺化呢主程序里的iq id 都标幺了啊
// Global variables used in this system
float VdTesting = 0; // Vd testing (pu)
float VqTesting = 0.25; // Vq testing (pu)
float IdRef = 0; // Id reference (pu)
float IqRef = 0.2; // Iq reference (pu)
float SpeedRef = 0.2; // Speed reference (pu)
float T = 0.001/ISR_FREQUENCY; // Samping period (sec), see parameter.h
但在这里 ImeasA ImeasB VdcMeas为什么没有标幺？只是转成有符号数然后补偿下
void F281X_ileg2_dcbus_drv_read(ILEG2DCBUSMEAS *p)
{
int16 DatQ15;
int32 Tmp;
// Wait until ADC conversion is completed
while (AdcRegs.ADCST.bit.SEQ1_BSY == 1)
{};
DatQ15 = AdcRegs.ADCRESULT0^0x8000; // Convert raw result to Q15 (bipolar signal)
Tmp = (int32)p->ImeasAGain*(int32)DatQ15; // Tmp = gain*dat => Q28 = Q13*Q15
p->ImeasA = (int16)(Tmp>>13); // Convert Q28 to Q15
p->ImeasA += p->ImeasAOffset; // Add offset
p->ImeasA *= -1; // Positive direction, current flows to motor
DatQ15 = AdcRegs.ADCRESULT1^0x8000; // Convert raw result to Q15 (bipolar signal)
Tmp = (int32)p->ImeasBGain*(int32)DatQ15; // Tmp = gain*dat => Q28 = Q13*Q15
p->ImeasB = (int16)(Tmp>>13); // Convert Q28 to Q15
p->ImeasB += p->ImeasBOffset; // Add offset
p->ImeasB *= -1; // Positive direction, current flows to motor
DatQ15 = (AdcRegs.ADCRESULT2>>1)&0x7FFF; // Convert raw result to Q15 (unipolar signal)
Tmp = (int32)p->VdcMeasGain*(int32)DatQ15; // Tmp = gain*dat => Q28 = Q13*Q15
if (Tmp > 0x0FFFFFFF) // Limit Tmp to 1.0 in Q28
Tmp = 0x0FFFFFFF;
p->VdcMeas = (int16)(Tmp>>13); // Convert Q28 to Q15
p->VdcMeas += p->VdcMeasOffset; // Add offset
p->ImeasC = -(p->ImeasA + p->ImeasB); // Compute phase-c current
AdcRegs.ADCTRL2.all |= 0x4040; // Reset the sequence
}
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