Merge branch 'master' of http://172.30.0.1:8418/cbb/Robot_v2
This commit is contained in:
@@ -25,6 +25,7 @@ extern CurrentKalman Current_kalman;
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#define constrain(value, min, max, target_min, target_max) \
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((value - min) / (max - min) * (target_max - target_min))
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<<<<<<< HEAD
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// 校准步骤(代码模板)
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void calibrate_zero_position(void) {
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// Set_3Pwm(.25, 0, 0); // 起劲
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@@ -49,14 +50,23 @@ void calibrate_zero_position(void) {
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// Set_3Pwm(0, 0, 0); // 停止
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}
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=======
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>>>>>>> c9934849c58e5b5daedd91d8bfde3d56aa02f83f
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// 通过Ia,Ib,Ic计算Iq,Id(目前仅输出Iq)
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inline float FOC_Controller::cal_Iq_Id(float current_a, float current_b,
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float current_c) {
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// 计算电气角度
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<<<<<<< HEAD
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float angle_el = fmod(shaft_angle * PP - KTH7823.calibration_angle, 360.0f);
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=======
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float angle_el = fmod(shaft_angle * PP, 360.0f);
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>>>>>>> c9934849c58e5b5daedd91d8bfde3d56aa02f83f
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// Clarke变换 (使用三相电流)
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<<<<<<< HEAD
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float I_alpha, I_beta;
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=======
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>>>>>>> c9934849c58e5b5daedd91d8bfde3d56aa02f83f
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I_alpha = (2.0f / 3.0f) * current_a - (1.0f / 3.0f) * current_b -
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(1.0f / 3.0f) * current_c;
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I_beta = _1_SQRT3 * current_b - _1_SQRT3 * current_c;
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@@ -66,11 +76,17 @@ inline float FOC_Controller::cal_Iq_Id(float current_a, float current_b,
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arm_sin_cos_f32(angle_el, &sin_el, &cos_el);
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float I_q, I_d;
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I_q = I_beta * cos_el - I_alpha * sin_el;
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<<<<<<< HEAD
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I_d = I_beta * sin_el + I_alpha * cos_el;
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// 返回Iq值,乘以1000以转换为mA
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return Current_kalman.update(I_q * 1000 - KE_FACTOR * rt_velocity);
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// return I_q * 1000 - KE_FACTOR * rt_velocity;
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=======
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return I_q * 1000.0f -
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KE_FACTOR * rt_velocity; // 返回Iq值,乘以1000以转换为mA
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>>>>>>> c9934849c58e5b5daedd91d8bfde3d56aa02f83f
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}
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/**
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@@ -80,6 +96,7 @@ inline float FOC_Controller::cal_Iq_Id(float current_a, float current_b,
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*/
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u8 FOC_Controller::init() {
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motor_init(); // 电机驱动初始化
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<<<<<<< HEAD
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FOC.cur_loop_p = DEFAULT_current_loop_p * 100 / limit_voltage;
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FOC.cur_MIT_p = DEFAULT_current_MIT_p * 100 / limit_voltage;
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@@ -89,7 +106,22 @@ u8 FOC_Controller::init() {
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FOC.ang_loop_p = DEFAULT_angle_loop_p * 100 / limit_voltage;
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FOC.ang_angloop_p = DEFAULT_angle_angloop_p * 100 / limit_voltage;
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FOC.ang_MIT_p = DEFAULT_angle_MIT_p * 100 / limit_voltage;
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=======
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vel_loop.set_PID(DEFAULT_vel_loop_p * 100 / voltage_power_supply, vel_loop_Ki,
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vel_loop_Kd); // 设置电机速度控制参数
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angle_loop.set_PID(DEFAULT_angle_loop_p * 100 / voltage_power_supply, 100.0f,
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0.2f); // 设置电机角度控制参数
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current_loop.set_PID(DEFAULT_current_loop_p * 100 / voltage_power_supply, 5e-7f,
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7e-8); // 设置电机电流控制参数
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vel_inVelAngloop.set_PID(DEFAULT_vel_angloop_p * 100, vel_angloop_Ki,
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vel_angloop_Kd); // 设置电机速度控制参数
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ang_inVelAngloop.set_PID(DEFAULT_ang_angloop_p * 100 / voltage_power_supply,
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ang_angloop_Ki,
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ang_angloop_Kd); // 设置电机角度控制参数
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>>>>>>> c9934849c58e5b5daedd91d8bfde3d56aa02f83f
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CAN0_transmiter.testfloat_union.f = DEFAULT_ang_angloop_p * 100 / voltage_power_supply;
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return 0;
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}
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@@ -140,6 +172,107 @@ inline void FOC_Controller::setPhaseVoltage(float Uq, float Ud) {
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duty_b = Ub / voltage_power_supply * voltage_exchange;
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duty_c = Uc / voltage_power_supply * voltage_exchange;
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<<<<<<< HEAD
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=======
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Set_3Pwm(duty_a, duty_b, duty_c);
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}
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/**
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* @brief 使用SVPWM算法设置电机输出(优化版)
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*
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* @param Uq: q轴电压
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* @param Ud: d轴电压
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*/
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inline void FOC_Controller::setSVPWM_PhaseVoltage(float Uq, float Ud) {
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// 计算电气角度(保持原有角度单位和范围)
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float angle_el = fmod(shaft_angle * PP, 360.0f);
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// 帕克逆变换
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float sin_el, cos_el;
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arm_sin_cos_f32(angle_el, &sin_el, &cos_el);
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float Ualpha = Ud * cos_el - Uq * sin_el;
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float Ubeta = Ud * sin_el + Uq * cos_el;
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// 计算角度并归一化到 [0, 2π)
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float angle = atan2f(Ubeta, Ualpha);
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if (angle < 0)
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angle += 2.0f * PI;
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// 扇区与局部角度
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int sector = (int)(angle * INV_PI_3) + 1;
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if (sector < 1)
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sector = 1;
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else if (sector > 6)
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sector = 6;
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float local_angle = angle - (sector - 1) * PI_3;
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// 模长计算
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float magnitude = sqrtf(Ualpha * Ualpha + Ubeta * Ubeta);
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// 计算电压调制比,同时限制最大输出电压
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float modulation_index =
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(magnitude / voltage_power_supply); // 90%作为安全裕量
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// 电压限制
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if (limit_voltage > voltage_power_supply) {
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limit_voltage = voltage_power_supply;
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}
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float limit_percent = limit_voltage / v_safe;
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if (modulation_index > limit_percent) {
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// 限制电压
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modulation_index = limit_percent;
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// 同时相应地调整magnitude,保持电压矢量方向不变,根据调整后的调制比反推magnitude
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magnitude = voltage_power_supply * limit_percent;
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}
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// 使用arm_sin_cos_f32计算local_angle的sin和cos
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float sin_l, cos_l;
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arm_sin_cos_f32(local_angle, &sin_l, &cos_l);
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float T1 = modulation_index * (SQRT3DV2 * cos_l - COS_PI_3 * sin_l);
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float T2 = modulation_index * sin_l;
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float T0 = 1.0f - T1 - T2;
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// 计算占空比(按规范化时间映射)
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switch (sector) {
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case 1:
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duty_a = 0.5f * T0 + T1 + T2;
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duty_b = 0.5f * T0 + T2;
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duty_c = 0.5f * T0;
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break;
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case 2:
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duty_a = 0.5f * T0 + T1;
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duty_b = 0.5f * T0 + T1 + T2;
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duty_c = 0.5f * T0;
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break;
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case 3:
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duty_a = 0.5f * T0;
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duty_b = 0.5f * T0 + T1 + T2;
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duty_c = 0.5f * T0 + T2;
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break;
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case 4:
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duty_a = 0.5f * T0;
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duty_b = 0.5f * T0 + T1;
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duty_c = 0.5f * T0 + T1 + T2;
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break;
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case 5:
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duty_a = 0.5f * T0 + T2;
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duty_b = 0.5f * T0;
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duty_c = 0.5f * T0 + T1 + T2;
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break;
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case 6:
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duty_a = 0.5f * T0 + T1 + T2;
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duty_b = 0.5f * T0;
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duty_c = 0.5f * T0 + T1;
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break;
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default:
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duty_a = 0.0f;
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duty_b = 0.0f;
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duty_c = 0.0f;
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break;
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}
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// 设置PWM输出
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>>>>>>> c9934849c58e5b5daedd91d8bfde3d56aa02f83f
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Set_3Pwm(duty_a, duty_b, duty_c);
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}
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@@ -249,7 +382,11 @@ inline void FOC_Controller::setSVPWM_PhaseVoltage(float Uq, float Ud) {
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*
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*/
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void FOC_Controller::shut_down() {
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<<<<<<< HEAD
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drv_stop();
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=======
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is_shut_down = 1;
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>>>>>>> c9934849c58e5b5daedd91d8bfde3d56aa02f83f
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motor_sleep();
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is_shut_down = true;
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}
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@@ -313,7 +450,11 @@ void FOC_Controller::update_power(float voltage) {
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voltage_error = false;
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voltage_power_supply = voltage;
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v_half = voltage * 0.5f;
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<<<<<<< HEAD
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v_safe = voltage * 1.1f;
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=======
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v_safe = voltage * 1.05f;
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>>>>>>> c9934849c58e5b5daedd91d8bfde3d56aa02f83f
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} else {
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voltage_error = true;
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}
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@@ -328,6 +469,7 @@ void FOC_Controller::update_power(float voltage) {
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float FOC_Controller::velocity_open_loop() {
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// 通过时间间隔和目标速度计算需要转动的机械角度,存储在shaft_angle中,在此之前,还需要对轴角度归一化
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shaft_angle = fmod(shaft_angle + target_velocity * REDUCTION_RATIO * 1.0 /
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<<<<<<< HEAD
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MOTOR_FREQUENCY / 2,
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360.0f);
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// 获取电机轴角度
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@@ -339,6 +481,19 @@ float FOC_Controller::velocity_open_loop() {
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// 因为在开环控制中,Ud始终为0,只控制Uq
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const float Uq = voltage_power_supply / 2.0f;
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setSVPWM_PhaseVoltage(Uq, 0.0f);
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=======
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TIMER2_FREQUENCY,
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360.0f);
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// 因为在开环控制中,Ud始终为0,只控制Uq
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const float Uq = voltage_power_supply / 2.0f;
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setSVPWM_PhaseVoltage(Uq, 0.0f);
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// CAN0_transmiter.testfloat_union.f = Uq;
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// cal_Iq_Id(sampler.get_current('U'), sampler.get_current('V'),
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// sampler.get_current('W'));
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>>>>>>> c9934849c58e5b5daedd91d8bfde3d56aa02f83f
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return limit_voltage;
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}
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@@ -358,6 +513,84 @@ float FOC_Controller::angle_control() {
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sampler.get_current('W'));
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// 设置相电压
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setSVPWM_PhaseVoltage(Uq, 0.0f);
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<<<<<<< HEAD
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=======
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return shaft_angle;
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}
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/**
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* @brief 带速度限制的角度闭环控制
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*
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* @param target_angle: 目标角度
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* @param max_velocity: 最大速度限制 (单位: rad/s)
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* @return float: 当前角度
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*/
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float FOC_Controller::angle_control_with_velocity_limit() {
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// 计算角度误差
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float angle_error = target_angle - rt_angle;
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// 使用角度PID控制器计算目标速度
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float target_velocity = ang_inVelAngloop(angle_error);
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// 使用速度PID控制器计算最终输出电压
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// 根据目标速度大小,选择不同的PID参数
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if (target_velocity < -120.0f) {
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vel_inVelAngloop.set_P(vel_angloop_p * 2.0f);
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} else if (target_velocity < -30.0f) {
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vel_inVelAngloop.set_P(vel_angloop_p * 1.5f);
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} else {
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vel_inVelAngloop.set_P(vel_angloop_p);
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}
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float Uq = vel_inVelAngloop(rt_velocity - target_velocity);
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rt_current = cal_Iq_Id(sampler.get_current('U'), sampler.get_current('V'),
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sampler.get_current('W'));
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// 获取电机轴角度
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shaft_angle = KTH7823.getcurrent_sensorangle();
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// 设置相电压
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setSVPWM_PhaseVoltage(Uq, 0.0f);
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return shaft_angle;
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}
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/**
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* @brief 带速度限制的角度闭环控制
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*
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* @param target_angle: 目标角度
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* @param max_velocity: 最大速度限制 (单位: rad/s)
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* @return float: 当前角度
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*/
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float FOC_Controller::MIT_Mode() {
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// 第一层:角度环(外环)
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// 根据目标角度和实际角度的差值,通过角度环PID控制器计算目标速度
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float angle_error = rt_angle - target_angle;
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float target_velocity =
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ang_inVelAngloop(angle_error); // 使用angle_loop作为角度到速度的映射
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// 第二层:速度环(中环)
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// 根据目标速度和实际速度的差值,通过速度环PID控制器计算目标电流
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float velocity_error = target_velocity - rt_velocity;
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float target_current =
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vel_inVelAngloop(velocity_error); // 使用vel_loop作为速度到电流的映射
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CAN0_transmiter.testfloat_union.f = target_current;
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// 第三层:电流环(内环)
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// 计算当前实际电流
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rt_current = cal_Iq_Id(sampler.get_current('U'), sampler.get_current('V'),
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sampler.get_current('W'));
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// 通过电流环PID控制器计算输出电压
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float current_error = target_current - rt_current;
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float Uq = current_loop(current_error);
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// 获取电机轴角度
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shaft_angle = KTH7823.getcurrent_sensorangle();
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// 设置相电压
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setSVPWM_PhaseVoltage(Uq, 0.0f);
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>>>>>>> c9934849c58e5b5daedd91d8bfde3d56aa02f83f
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return shaft_angle;
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}
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Reference in New Issue
Block a user