- 升级ARM::CMSIS从4.5.0到6.1.0版本 - 添加ARM::CMSIS-DSP@1.16.2依赖包 - 升级GigaDevice::GD32C10x_DFP从1.0.1到1.5.0版本 - 移除FOC.cpp中未使用的systick.h头文件 - 移除pid.cpp中未使用的<algorithm>头文件 - 更新GD32C10x固件库至V1.7.0版本(2026-01-30) - 修复ADC驱动中的无符号整数运算问题 - 优化BKP、CAN、CTC等外设驱动中的FlagStatus返回逻辑 - 改进CAN驱动的消息发送和传输停止函数实现 - 修复CRC、DMA、FMC等驱动中的数据类型和变量声明问题 - 清理和修正各驱动文件中的文档注释
565 lines
16 KiB
C++
565 lines
16 KiB
C++
#include "FOC.h"
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#include "Can.h"
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#include "Filter.h"
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#include "Timer.h"
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#include "adc.h"
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#include "ang_sensor.h"
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#include "config.h"
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#include "motor.h"
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#include "pid.h"
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#include <arm_math.h>
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#include <cmath>
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#include <gd32c10x.h>
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FOC_Controller FOC; // FOC控制初始化
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extern sampler sampler;
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extern angle_sensor KTH7823;
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extern CAN_transmiter CAN0_transmiter;
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extern EncoderVelocityKalman Vel_kalman; // 速度滤波
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extern CurrentKalman Current_kalman;
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extern u16 adc_value[6]; // ADC DMA缓冲区,用于快速电压检测
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// 初始变量及函数定义
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#define _constrain(amt, low, high) \
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((amt) < (low) ? (low) : ((amt) > (high) ? (high) : (amt)))
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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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// 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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// delay_1ms(1000);
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// KTH7823.update();
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// // 改进校准算法:获取当前传感器角度并计算补偿值
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// float current_sensor_angle = KTH7823.getcurrent_sensorangle();
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// float electrical_angle = fmodf(current_sensor_angle * PP, 360.0f); //
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// 计算当前电角度
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// // 计算需要的补偿值,使得当前位置对应0°电角度
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// KTH7823.calibration_angle = -electrical_angle;
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// // 对补偿角进行归一化处理,确保在[-180, 180]范围内
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// KTH7823.calibration_angle = fmodf(KTH7823.calibration_angle + 180.0f,
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// 360.0f); if (KTH7823.calibration_angle < 0) { KTH7823.calibration_angle
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// += 360.0f;
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// }
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// KTH7823.calibration_angle -= 180.0f;
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// Set_3Pwm(0, 0, 0); // 停止
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}
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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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float angle_el = fmod(shaft_angle * PP - KTH7823.calibration_angle, 360.0f);
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// Clarke变换 (使用三相电流)
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float I_alpha, I_beta;
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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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// Park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 I_q, I_d;
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I_q = I_beta * cos_el - I_alpha * sin_el;
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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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/**
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* @brief 电机控制类初始化函数
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*
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* @return u8 0表示初始化成功,1表示初始化失败
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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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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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FOC.vel_loop_p = DEFAULT_vel_loop_p * 100 / limit_voltage;
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FOC.vel_angloop_p = DEFAULT_vel_angloop_p * 100;
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FOC.vel_MIT_p = DEFAULT_vel_MIT_p * 100;
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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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return 0;
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}
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/**
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* @brief 电机控制类构造函数
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*
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*/
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FOC_Controller::FOC_Controller() { ; }
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// /**
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// * @brief 设置电机输出
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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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// * @param angle_el: 电机轴角度
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// */
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// inline void FOC_Controller::setPhaseVoltage(float Uq, float Ud) {
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// // 计算电气角度
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// float angle_el = fmod(shaft_angle * PP, 360.0f);
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// // 帕克逆变换 (直接计算,避免函数调用开销)
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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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// // 克拉克逆变换 (使用预计算常量优化)
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// Ua = Ualpha + v_half;
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// Ub = SQRT3DV2 * Ubeta - 0.5f * Ualpha + v_half;
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// Uc = -0.5f * Ualpha - SQRT3DV2 * Ubeta + v_half;
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// if (Ua > v_safe)
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// Ua = v_safe;
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// else if (Ua < -v_safe)
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// Ua = -v_safe;
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// if (Ub > v_safe)
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// Ub = v_safe;
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// else if (Ub < -v_safe)
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// Ub = -v_safe;
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// if (Uc > v_safe)
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// Uc = v_safe;
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// else if (Uc < -v_safe)
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// Uc = -v_safe;
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// // 设置PWM输出
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// float voltage_exchange = limit_voltage / v_safe;
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// duty_a = Ua / voltage_power_supply * voltage_exchange;
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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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// 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
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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
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float angle_el = shaft_angle * PP + KTH7823.calibration_angle;
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// 对电角度进行归一化,确保在[0, 360)范围内
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angle_el = fmodf(angle_el, 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 < 0.0f)
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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 = 0.5f;
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duty_b = 0.5f;
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duty_c = 0.5f;
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break;
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}
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// 设置PWM输出
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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 电机关机(通用关机,不带原因标记)
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*
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*/
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void FOC_Controller::shut_down() {
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drv_stop();
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motor_sleep();
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is_shut_down = true;
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}
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/**
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* @brief 过热关机
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*
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*/
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void FOC_Controller::shut_down_thermal() {
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drv_stop();
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motor_sleep();
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is_shut_down = true;
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thermal_shutdown = true;
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}
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/**
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* @brief 过热恢复
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*
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*/
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void FOC_Controller::resume_from_thermal() {
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thermal_shutdown = false;
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if (!voltage_error && !over_current) {
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is_shut_down = false;
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motor_resume();
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}
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}
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/**
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* @brief 占空比置0
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*
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*/
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void FOC_Controller::drv_stop() { Set_3Pwm(0.0f, 0.0f, 0.0f); }
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/**
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* @brief 电机锁止
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*/
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float FOC_Controller::drv_hold() {
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float hold_pwm_duty = HOLD_PWM_DUTY;
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if (HOLD_PWM_DUTY > 0.95f) {
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hold_pwm_duty = 0.95f;
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} else if (HOLD_PWM_DUTY < 0.0f) {
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hold_pwm_duty = 0.0f;
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}
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Set_3Pwm(hold_pwm_duty, 0, 0);
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return hold_pwm_duty;
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}
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/**
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* @brief PWM模式(调试)
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*/
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float FOC_Controller::PWM_out() {
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float hold_pwm_duty = target_velocity/100;
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Set_3Pwm(hold_pwm_duty, hold_pwm_duty, hold_pwm_duty);
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return hold_pwm_duty;
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}
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/**
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* @brief 电机恢复
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*
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*/
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void FOC_Controller::resume() {
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over_current = false;
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voltage_error = false;
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is_shut_down = false;
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motor_resume();
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}
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/**
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* @brief 更新电源电压
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*
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*/
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void FOC_Controller::update_power(float voltage) {
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if (voltage < 36.0f and voltage > 8.0f) {
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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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v_safe = voltage * 1.1f;
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} else {
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voltage_error = true;
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}
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}
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/**
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* @brief 快速电压检测(在电机控制循环中每100us调用一次)
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*
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* 直接从DMA缓冲区读取最新ADC值,检测电压跌幅
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* 响应时间 < 200us
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*
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* 算法:
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* 1. 使用峰值检测算法跟踪当前额定电压(vbus_reference)
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* - 电压上升时,基准电压跟随
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* - 电压下跌时,基准电压保持(不跟随下跌)
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* 2. 计算电压跌幅 = 基准电压 - 当前电压
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* 3. 关机条件(满足任一即可):
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* - 电压跌幅超过 VBUS_DROP_THRESHOLD
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* - 电压低于绝对下限 VBUS_ABSOLUTE_MIN
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*
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* 参数定义在 config.h 中:
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* - VBUS_DROP_THRESHOLD: 电压跌幅阈值 (默认5V)
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* - VBUS_ABSOLUTE_MIN: 绝对最低电压 (默认8V)
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* - VBUS_DEBOUNCE_COUNT: 防抖计数 (默认5次)
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*/
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void FOC_Controller::fast_voltage_check(void) {
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// 直接从DMA缓冲区读取最新ADC值(通道5是Vbus)
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float current_vbus = adc_value[5] * (3.3f / 4096.0f) * 11.0f;
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// 更新基准电压(峰值检测)
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// 电压上升时,基准电压跟随;电压下跌时,基准电压保持
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if (current_vbus > vbus_reference) {
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vbus_reference = current_vbus;
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}
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// 电压下跌时不更新基准电压,保持之前的峰值
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// 更新上次电压值
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last_vbus_fast = current_vbus;
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// 计算电压跌幅(相对于基准电压)
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float voltage_drop = vbus_reference - current_vbus;
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// 关机条件(满足任一即可):
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// 1. 电压跌幅超过阈值
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// 2. 电压低于绝对下限
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bool drop_exceeded = (voltage_drop > VBUS_DROP_THRESHOLD);
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bool below_absolute = (current_vbus < VBUS_ABSOLUTE_MIN);
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if ((drop_exceeded || below_absolute) && (!is_shut_down)) {
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// 电压跌落计数(防抖)
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vbus_drop_count++;
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if (vbus_drop_count >= VBUS_DEBOUNCE_COUNT) {
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// 确认需要关机,立即停机
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drv_stop();
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motor_sleep();
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is_shut_down = true;
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emergency_shutdown = true; // 标记紧急关机,低频任务会执行保存
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vbus_drop_count = 0; // 重置计数器
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}
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} else {
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// 电压正常,重置计数器
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vbus_drop_count = 0;
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}
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}
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/**
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* @brief 速度开环控制
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*
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* @param target_velocity: 目标速度
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* @return float: q轴电压
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*/
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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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MOTOR_FREQUENCY / 2,
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360.0f);
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// 获取电机轴角度
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float shaft_angle = KTH7823.getcurrent_sensorangle();
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CAN0_transmiter.testfloat_union.f = shaft_angle;
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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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// 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);
|
||
return limit_voltage;
|
||
}
|
||
|
||
/**
|
||
* @brief 角度闭环控制
|
||
*
|
||
* @param target_angle: 目标角度
|
||
* @return float: 当前角度
|
||
*/
|
||
float FOC_Controller::angle_control() {
|
||
// PID 控制计算
|
||
float Uq = angle_loop(rt_angle - target_angle);
|
||
|
||
// 获取电机轴角度
|
||
shaft_angle = KTH7823.getcurrent_sensorangle();
|
||
rt_current = cal_Iq_Id(sampler.get_current('U'), sampler.get_current('V'),
|
||
sampler.get_current('W'));
|
||
// 设置相电压
|
||
setSVPWM_PhaseVoltage(Uq, 0.0f);
|
||
return shaft_angle;
|
||
}
|
||
|
||
/**
|
||
* @brief 速度闭环控制
|
||
*
|
||
* @param target_velocity: 目标速度
|
||
* @return float: 当前速度
|
||
*/
|
||
float FOC_Controller::velocity_control() {
|
||
// PID 控制计算,使用 DIR 参数调整速度误差的符号
|
||
// DIR = -1.0f 时:速度误差 = -(target_velocity - rt_velocity) = rt_velocity - target_velocity
|
||
// DIR = 1.0f 时:速度误差 = target_velocity - rt_velocity
|
||
float Uq = vel_loop((target_velocity - rt_velocity) * DIR * REDUCTION_RATIO);
|
||
CAN0_transmiter.testfloat_union.f = Uq;
|
||
|
||
// 获取电机轴角度
|
||
shaft_angle = KTH7823.getcurrent_sensorangle();
|
||
// 设置相电压
|
||
setSVPWM_PhaseVoltage(Uq, 0.0f);
|
||
rt_current = cal_Iq_Id(sampler.get_current('U'), sampler.get_current('V'),
|
||
sampler.get_current('W'));
|
||
|
||
return rt_velocity;
|
||
}
|
||
|
||
float FOC_Controller::current_control() {
|
||
// PID 控制计算
|
||
float Iq = rt_current =
|
||
cal_Iq_Id(sampler.get_current('U'), sampler.get_current('V'),
|
||
sampler.get_current('W'));
|
||
float Uq = current_loop(target_current - Iq);
|
||
if (Uq > limit_voltage) {
|
||
Uq = limit_voltage;
|
||
} else if (Uq < -limit_voltage) {
|
||
Uq = -limit_voltage;
|
||
}
|
||
// 获取电机轴角度
|
||
shaft_angle = KTH7823.getcurrent_sensorangle();
|
||
CAN0_transmiter.testfloat_union.f = shaft_angle;
|
||
// 设置相电压
|
||
setSVPWM_PhaseVoltage(Uq, 0.0f);
|
||
return 1;
|
||
}
|
||
|
||
/**
|
||
* @brief 带速度限制的角度闭环控制
|
||
*
|
||
* @param target_angle: 目标角度
|
||
* @param max_velocity: 最大速度限制 (单位: rad/s)
|
||
* @return float: 当前角度
|
||
*/
|
||
float FOC_Controller::angle_control_with_velocity_limit() {
|
||
// 计算角度误差
|
||
float angle_error = target_angle - rt_angle;
|
||
|
||
ang_inVelAngloop.set_P(ang_angloop_p);
|
||
// 使用角度PID控制器计算目标速度
|
||
float target_velocity = ang_inVelAngloop(angle_error);
|
||
|
||
// 使用速度PID控制器计算最终输出电压
|
||
// 根据目标速度大小,选择不同的PID参数
|
||
if (target_velocity < -120.0f) {
|
||
vel_inVelAngloop.set_P(vel_angloop_p * 2.0f);
|
||
} else if (target_velocity < -30.0f) {
|
||
vel_inVelAngloop.set_P(vel_angloop_p * 1.5f);
|
||
} else {
|
||
vel_inVelAngloop.set_P(vel_angloop_p);
|
||
}
|
||
float Uq = vel_inVelAngloop(target_velocity - rt_velocity)* DIR;
|
||
CAN0_transmiter.testfloat_union.f = Uq;
|
||
|
||
// // 实现力度控制:如果电流超过目标电流,则限制输出
|
||
// if (abs(rt_current) > abs(target_current)) {
|
||
// // 当实际电流超过目标电流时,减小输出以限制电流
|
||
// // 可以采用比例限制或直接限制输出电压的方式
|
||
// float current_ratio = abs(target_current) / abs(rt_current);
|
||
// if (current_ratio < 1.0f) {
|
||
// Uq *= current_ratio; // 按比例缩小输出电压
|
||
// }
|
||
// }
|
||
|
||
// 获取电机轴角度
|
||
shaft_angle = KTH7823.getcurrent_sensorangle();
|
||
// 获取当前实际电流值
|
||
rt_current = cal_Iq_Id(sampler.get_current('U'), sampler.get_current('V'),
|
||
sampler.get_current('W'));
|
||
// 设置相电压
|
||
setSVPWM_PhaseVoltage(Uq, 0.0f);
|
||
|
||
return shaft_angle;
|
||
}
|
||
|
||
/**
|
||
* @brief MIT控制
|
||
*
|
||
* @param target_angle: 目标角度
|
||
* @param max_velocity: 最大速度限制 (单位: rad/s)
|
||
* @return float: 当前角度
|
||
*/
|
||
float FOC_Controller::MIT_Mode() {
|
||
// 第一层:角度环(外环)
|
||
// 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
|
||
float angle_error = target_angle - rt_angle;
|
||
ang_inMITloop.set_P(ang_MIT_p);
|
||
float target_velocity =
|
||
ang_inMITloop(angle_error); // 使用angle_loop作为角度到速度的映射
|
||
|
||
// 第二层:速度环(中环)
|
||
// 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
|
||
float velocity_error = (target_velocity - rt_velocity)* DIR;
|
||
vel_inMITloop.set_P(vel_MIT_p);
|
||
float target_current = vel_inMITloop(velocity_error);
|
||
|
||
// 第三层:电流环(内环)
|
||
// 计算当前实际电流
|
||
rt_current = cal_Iq_Id(sampler.get_current('U'), sampler.get_current('V'),
|
||
sampler.get_current('W'));
|
||
|
||
// 通过电流环PID控制器计算输出电压
|
||
float current_error = target_current - rt_current;
|
||
current_inMITloop.set_P(cur_MIT_p);
|
||
float Uq = current_inMITloop(current_error);
|
||
|
||
// 获取电机轴角度
|
||
shaft_angle = KTH7823.getcurrent_sensorangle();
|
||
|
||
// 设置相电压
|
||
setSVPWM_PhaseVoltage(Uq, 0.0f);
|
||
|
||
return shaft_angle;
|
||
}
|