First version of program for measuring current of three phase BLDC motor.
Dependencies: AutomationElements CurrentRegulation_ mbed
Diff: CurrentMeasurement.cpp
- Revision:
- 1:feb19abb96b5
- Parent:
- 0:c499ebd23db0
--- a/CurrentMeasurement.cpp Sat Jul 18 20:01:58 2015 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,42 +0,0 @@ -#include "CurrentMeasurement.h" - -CurrentMeasurement::CurrentMeasurement(PinName pI_A, PinName pI_B, PinName pI_C, PinName pI_TOTAL):I_A(pI_A), I_B(pI_B), I_C(pI_C), I_TOTAL(pI_TOTAL){ - setValues(1e-3, 1e3, 1e3, 40e3, 20e3, 3.3); - calculateCurrentA(); - calculateCurrentB(); - calculateCurrentC(); - calculateCurrentTotal(); -} - -CurrentMeasurement::CurrentMeasurement(PinName pI_A, PinName pI_B, PinName pI_C, PinName pI_TOTAL, float R_sh, float R_1s, float R_1t, float R_fs, float R_ft, float V_ref):I_A(pI_A), I_B(pI_B), I_C(pI_C), I_TOTAL(pI_TOTAL){ - setValues(R_sh, R_1s, R_1t, R_fs, R_ft, V_ref); - calculateCurrentA(); - calculateCurrentB(); - calculateCurrentC(); - calculateCurrentTotal(); -} - -void CurrentMeasurement::setValues(float R_sh, float R_1s, float R_1t, float R_fs, float R_ft, float V_ref){ - this->R_sh = R_sh; - this->R_1s = R_1s; - this->R_1t = R_1t; - this->R_fs = R_fs; - this->R_ft = R_ft; - this->V_ref = V_ref; -} - -float CurrentMeasurement::calculateCurrentA(){ - return I_A_ = (R_sh * R_1s * (V_ref * I_A.read()))/R_fs - (R_sh * R_1s * (V_ref/2))/R_fs; -} - -float CurrentMeasurement::calculateCurrentB(){ - return I_B_ = (R_sh * R_1s * (V_ref * I_B.read()))/R_fs - (R_sh * R_1s * (V_ref/2))/R_fs; -} - -float CurrentMeasurement::calculateCurrentC(){ - return I_C_ = (R_sh * R_1s * (V_ref * I_C.read()))/R_fs - (R_sh * R_1s * (V_ref/2))/R_fs; -} - -float CurrentMeasurement::calculateCurrentTotal(){ - return I_TOTAL_ = (R_1t * (V_ref * I_TOTAL.read()))/(R_ft * R_sh) - (R_1t * (V_ref/2))/(R_ft * R_sh); -} \ No newline at end of file