feat(FOC): 增加闭环速度控制算法

- 重构setPhaseVoltage函数实现,提高执行效率
- 增加update_power函数,动态更新电源电压
- 优化velocity_open_loop函数,调用、setPhaseVoltage避免重复代码
- 实现angle_control和velocity_control闭环控制函数
- 调整PID控制器参数初始化及增加参数设置接口
- 改进电流和编码器速度卡尔曼滤波器实现
- 更新CAN通信数据打包逻辑,增加测试字段
- 在定时器中断中集成多种控制模式切换逻辑
- 完善角度传感器数据处理,改进速度计算方法
- 减小速度滤波数组大小,提升响应速度
This commit is contained in:
cbb
2025-11-06 02:07:15 +08:00
parent 516a7bd41d
commit 971374d8ec
12 changed files with 355 additions and 172 deletions
+55 -41
View File
@@ -1,52 +1,66 @@
#include "pid.h"
#include "Timer.h"
#define _constrain(amt,low,high) ((amt)<(low)?(low):((amt)>(high)?(high):(amt)))
#define _constrain(amt, low, high) \
((amt) < (low) ? (low) : ((amt) > (high) ? (high) : (amt)))
#include "Can.h"
extern CAN_transmiter CAN0_transmiter;
PIDController::PIDController(float P, float I, float D, float ramp, float limit)
: P(P)
, I(I)
, D(D)
, output_ramp(ramp) // PID控制器加速度限幅
, limit(limit) // PID控制器输出限幅
, error_prev(0.0f)
, output_prev(0.0f)
, integral_prev(0.0f)
{
timestamp_prev = get_system_runtime_us() ;
: P(P), I(I), D(D), output_ramp(ramp) // PID控制器加速度限幅
,
limit(limit) // PID控制器输出限幅
,
error_prev(0.0f), output_prev(0.0f), integral_prev(0.0f) {
timestamp_prev = get_system_runtime_us();
}
// PID 控制器函数
float PIDController::operator() (float error){
// 计算两次循环中间的间隔时间
unsigned long timestamp_now = get_system_runtime_us();
float Ts = (timestamp_now - timestamp_prev) * 1e-6f;
if(Ts <= 0 || Ts > 0.5f) Ts = 1e-3f;
// P环
float proportional = P * error;
// Tustin 散点积分(I环)
float integral = integral_prev + I*Ts*0.5f*(error + error_prev);
integral = _constrain(integral, -limit, limit);
// D环(微分环节)
float derivative = D*(error - error_prev)/Ts;
float PIDController::operator()(float error) {
// 计算两次循环中间的间隔时间
unsigned long timestamp_now = get_system_runtime_us();
float Ts = (timestamp_now - timestamp_prev) * 1e-6f;
if (Ts <= 0 || Ts > 0.5f)
Ts = 1e-3f;
// 将P,I,D三环的计算值加起来
float output = proportional + integral + derivative;
output = _constrain(output, -limit, limit);
// P环
float proportional = P * error;
// Tustin 散点积分(I环)
float integral = integral_prev + I * Ts * 0.5f * (error + error_prev);
integral = _constrain(integral, -limit, limit);
// D环(微分环节)
float derivative = D * (error - error_prev) / Ts;
// 将P,I,D三环的计算值加起来
float output = proportional + integral + derivative;
output = _constrain(output, -limit, limit);
if(output_ramp > 0){
// 对PID的变化速率进行限制
float output_rate = (output - output_prev)/Ts;
if (output_rate > output_ramp)
output = output_prev + output_ramp*Ts;
else if (output_rate < -output_ramp)
output = output_prev - output_ramp*Ts;
}
// 保存值(为了下一次循环)
integral_prev = integral;
output_prev = output;
error_prev = error;
timestamp_prev = timestamp_now;
return output;
if (output_ramp > 0) {
// 对PID的变化速率进行限制
float output_rate = (output - output_prev) / Ts;
if (output_rate > output_ramp)
output = output_prev + output_ramp * Ts;
else if (output_rate < -output_ramp)
output = output_prev - output_ramp * Ts;
}
// 保存值(为了下一次循环)
integral_prev = integral;
output_prev = output;
error_prev = error;
timestamp_prev = timestamp_now;
return output;
}
/**
* @brief 设置PID参数
*
* @param P: P参数
* @param I: I参数
* @param D: D参数
* @return void
*/
void PIDController::set_PID(float P, float I, float D) {
P = P;
I = I;
D = D;
}