Library for current regulation of BLDC motor.
Diff: CurrentRegulation.cpp
- Revision:
- 0:d8dab3dae6f2
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/CurrentRegulation.cpp Thu Aug 20 14:58:23 2015 +0000 @@ -0,0 +1,84 @@ +#include "CurrentRegulation.h" + +CurrentRegulation::CurrentRegulation(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, 40e3, 20e3, 3.3); + measure1.attach_us(this, &CurrentRegulation::calculateCurrentA, 500); + measure2.attach_us(this, &CurrentRegulation::calculateTotalCurrent, 500); +} + +CurrentRegulation::CurrentRegulation(PinName pI_A, PinName pI_B, PinName pI_C, PinName pI_TOTAL, double R_sh, double R_1, double R_fs, double R_ft, double V_ref):I_A(pI_A), I_B(pI_B), I_C(pI_C), I_TOTAL(pI_TOTAL){ + setValues(R_sh, R_1, R_fs, R_ft, V_ref); + measure1.attach_us(this, &CurrentRegulation::calculateCurrentA, 500); + measure2.attach_us(this, &CurrentRegulation::calculateTotalCurrent, 500); +} + +void CurrentRegulation::setValues(double R_sh, double R_1, double R_fs, double R_ft, double V_ref){ + this->R_sh = R_sh; + this->R_1 = R_1; + this->R_fs = R_fs; + this->R_ft = R_ft; + this->V_ref = V_ref; +} + +void CurrentRegulation::calculateCurrentA(){ + double V_outa = (V_ref - (V_ref/2))/(1 - 0) * I_A.read() + (V_ref/2); + this->I_A_ = (R_1 * V_outa)/(R_sh * R_fs) - (R_1 * (V_ref/2))/(R_sh * R_fs); +} + +void CurrentRegulation::calculateCurrentB(){ + double V_outb = (V_ref - (V_ref/2))/(1 - 0) * I_B.read() + (V_ref/2); + this->I_B_ = (R_1 * V_outb)/(R_sh * R_fs) - (R_1 * (V_ref/2))/(R_sh * R_fs); +} + +void CurrentRegulation::calculateCurrentC(){ + double V_outc = (V_ref - (V_ref/2))/(1 - 0) * I_C.read() + (V_ref/2); + this->I_C_ = (R_1 * V_outc)/(R_sh * R_fs) - (R_1 * (V_ref/2))/(R_sh * R_fs); +} + +void CurrentRegulation::calculateTotalCurrent(){ + double V_outt = (V_ref - (V_ref/2))/(1 - 0)*I_TOTAL.read()+(V_ref/2); + this->I_TOTAL_ = (R_1 * V_outt)/(R_sh * R_fs) - (R_1 * (V_ref/2))/(R_sh * R_fs); +} + +double showResult(){ + double I_Ar = this->I_A_; + return I_Ar; +} + +double CurrentRegulation::calculateKr(){ + T_pv = 1e-4; + T_ch = 25e-6; + zeta = 1.2; + K_ch = 50.0; + K_pv = 1.0; + T_I = 1.428e-3; + K_a = 4.76; + T_suma = (T_pv + T_ch); + K_oR = 1/(4 * (zeta * zeta) * T_suma); + return K_R = (K_oR * T_I)/(K_a * K_ch * K_pv); +} + +/* +void CurrentMeasurement::phaseCurrent(int currentSector){ + switch(currentSector){ + case 0: + measureCurrentC(); + break; + case 1: + measureCurrentC(); + break; + case 2: + measureCurrentA(); + break; + case 3: + measureCurrentA(); + break; + case 4: + measureCurrentB(); + break; + case 5: + measureCurrentB(); + break; + } +} +*/ \ No newline at end of file