feat(FOC): 优化SVPWM算法并重构角度控制逻辑
- 引入新的三值约束宏 `_constrain3` 用于SVPWM计算优化 - 修改 `setPhaseVoltage` 函数签名,移除冗余的角度参数,内部自动计算电气角度 - 调整PWM占空比计算方式,提高电压利用率和控制精度 - 移除旧的DEG2RAD和RAD2DEG常量定义,改由initial.h统一管理 - 在initial.h中新增减速比常量REDUCTION_RATIO,并修正拼写错误 - 为角度传感器类更新速度滤波器尺寸,提升速度估算稳定性 - 更新PID控制器时间片常量,简化dt计算逻辑,提高执行效率 - 切换角度闭环控制至新NPID版本,增强系统响应性能 - 修正CAN通信中的目标角度解析逻辑,确保指令正确应用
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@@ -678,7 +678,7 @@ void CAN_transmiter::communication_check() {
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}
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target_angle_union.f =
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unpack_bytes_to_float(receive_message.rx_data, 7).f;
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FOC.target_angle = target_angle_union.f * ANGLE_FACTOR;
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FOC.target_angle = target_angle_union.f;
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target_velocity_union.f =
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unpack_bytes_to_float(receive_message.rx_data, 11).f;
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@@ -167,7 +167,7 @@ void TIMER2_IRQHandler(void) {
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// 增加总计数器 (使用更高效的位运算代替取模运算)
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total_us100_counter++;
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system_runtime_us += 100;
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// system_runtime_us += 100;
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// 每100us执行一次的操作
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sampler.update_current(); // 更新电流采样值
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@@ -175,7 +175,7 @@ void TIMER2_IRQHandler(void) {
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FOC.rt_velocity = Vel_kalman.update(KTH7823.getVelocity());
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if (FOC.control_mode == 1) {
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FOC.angle_control(FOC.target_angle); // 角度闭环控制
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FOC.angle_control_NPID(FOC.target_angle); // 角度闭环控制
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} else if (FOC.control_mode == 2) {
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FOC.velocity_control(FOC.target_velocity);// 速度闭环控制
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} else if (FOC.control_mode == 4) {
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@@ -5,6 +5,7 @@
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#include <cstdio>
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#include <cstring>
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#include <stdint.h>
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#include "initial.h"
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#define SPI_CS_ENABLE() gpio_bit_reset(GPIOA, GPIO_PIN_15)
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#define SPI_CS_DISABLE() gpio_bit_set(GPIOA, GPIO_PIN_15)
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@@ -13,7 +14,6 @@ constexpr float ANGLE_FACTOR = 1.0f / 65536.0f * 360.0f;
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constexpr float RAD_FACTOR = 1.0f / 65536.0f * 2.0f * 3.14159265358979323846f;
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constexpr u16 DEFAULT_COMMAND = 0x0000;
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constexpr u16 FAULT_RECEIVE = 0xFFFF;
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constexpr u16 REDDUCTION_RATIO = 25;
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constexpr float VELOCITY_SCALE = 1e4f;
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constexpr float ANGLE_WRAP_THRESHOLD = 270.0f;
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constexpr float ANGLE_WRAP_VALUE = 360.0f;
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@@ -259,7 +259,7 @@ float angle_sensor::update(void) {
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* @return 累积角度值
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*/
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float angle_sensor::getAngle(void) const {
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return m_cumulativeAngle / REDDUCTION_RATIO;
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return m_cumulativeAngle / REDUCTION_RATIO;
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}
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/**
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@@ -273,7 +273,7 @@ float angle_sensor::getRawAngle(void) const { return m_cumulativeAngle; }
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* @return 速度值(输出级)
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*/
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float angle_sensor::getVelocity(void) const {
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return getRawVelocity() / REDDUCTION_RATIO;
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return getRawVelocity() / REDUCTION_RATIO;
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}
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/**
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@@ -11,7 +11,7 @@ u16 spi_rw_half_word(u32 spi_periph, const u16 i_HalfWord);
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int spi_rw_half_word_dma(uint32_t spi_periph, uint16_t tx_data,
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uint16_t *rx_data);
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constexpr u16 VEL_FILTER_SIZE = 3;
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constexpr u16 VEL_FILTER_SIZE = 4;
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class angle_sensor {
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public:
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