203 lines
6.4 KiB
C
203 lines
6.4 KiB
C
#include "stm32f4xx.h" // Device header
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#include "stm32f4xx_conf.h"
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#include "PID.h"
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/*
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*函数简介:位置式PID初始化结构体
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*参数说明:位置式PID参数结构体
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*参数说明:预期值
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*返回类型:无
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*备注:无
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*/
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void PID_PositionStructureInit(PID_PositionInitTypedef* PID_InitStructure,float NeedValue)
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{
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PID_InitStructure->Need_Value=NeedValue;
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PID_InitStructure->Ek=0;
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PID_InitStructure->Sum_Ek=0;
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PID_InitStructure->Ek_low=0;
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PID_InitStructure->Ek_up=0;
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PID_InitStructure->Kp=0;
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PID_InitStructure->Ki=0;
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PID_InitStructure->Kd=0;
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PID_InitStructure->OUT_low=-1e10;
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PID_InitStructure->OUT_up=1e10;
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}
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/*
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*函数简介:位置式PID设置参数
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*参数说明:位置式PID参数结构体
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*参数说明:单精度浮点型Kp
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*参数说明:单精度浮点型Ki
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*参数说明:单精度浮点型Kd
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*返回类型:无
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*备注:无
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*/
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void PID_PositionSetParameter(PID_PositionInitTypedef* PID_InitStructure,float kp,float ki,float kd)
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{
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PID_InitStructure->Kp=kp;
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PID_InitStructure->Ki=ki;
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PID_InitStructure->Kd=kd;
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}
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/*
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*函数简介:位置式PID设置误差为0阈值
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*参数说明:位置式PID参数结构体
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*参数说明:误差为0阈值下限
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*参数说明:误差为0阈值上限
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*返回类型:无
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*备注:无
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*/
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void PID_PositionSetEkRange(PID_PositionInitTypedef* PID_InitStructure,float ek_low,float ek_up)
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{
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PID_InitStructure->Ek_low=ek_low;
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PID_InitStructure->Ek_up=ek_up;
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}
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/*
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*函数简介:位置式PID设置输出限幅
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*参数说明:位置式PID参数结构体
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*参数说明:输出限幅下限
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*参数说明:输出限幅上限
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*返回类型:无
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*备注:无
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*/
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void PID_PositionSetOUTRange(PID_PositionInitTypedef* PID_InitStructure,float out_low,float out_up)
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{
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PID_InitStructure->OUT_low=out_low;
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PID_InitStructure->OUT_up=out_up;
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}
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/*
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*函数简介:位置式PID清理
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*参数说明:位置式PID参数结构体
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*返回类型:无
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*备注:使Ek和Sum为0
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*/
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void PID_PositionClean(PID_PositionInitTypedef* PID_InitStructure)
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{
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PID_InitStructure->Ek=0;
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PID_InitStructure->Sum_Ek=0;
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}
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/*
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*函数简介:位置式PID计算
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*参数说明:位置式PID参数结构体
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*参数说明:当前值
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*返回类型:无
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*备注:OUT=POUT+IOUT+DOUT=Kp*Ek+Ki*ΣEk+Kd*(Ek-Ek_1)
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*备注:计算结果保存在位置式PID参数结构体中
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*/
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void PID_PositionCalc(PID_PositionInitTypedef* PID_InitStructure,float NowValue)
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{
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PID_InitStructure->Now_Value=NowValue;
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PID_InitStructure->Ek_1=PID_InitStructure->Ek;
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PID_InitStructure->Ek=PID_InitStructure->Need_Value-PID_InitStructure->Now_Value;
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if(PID_InitStructure->Ek_low<PID_InitStructure->Ek&&PID_InitStructure->Ek<PID_InitStructure->Ek_up)//误差为0检测
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PID_InitStructure->Ek=0;
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PID_InitStructure->Sum_Ek+=PID_InitStructure->Ek;
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PID_InitStructure->Del_Ek=PID_InitStructure->Ek-PID_InitStructure->Ek_1;
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PID_InitStructure->P_OUT=PID_InitStructure->Kp*PID_InitStructure->Ek;
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PID_InitStructure->I_OUT=PID_InitStructure->Ki*PID_InitStructure->Sum_Ek;
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PID_InitStructure->D_OUT=PID_InitStructure->Kd*PID_InitStructure->Del_Ek;
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PID_InitStructure->OUT=PID_InitStructure->P_OUT+PID_InitStructure->I_OUT+PID_InitStructure->D_OUT;
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if(PID_InitStructure->OUT<PID_InitStructure->OUT_low)//输出限幅
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PID_InitStructure->OUT=PID_InitStructure->OUT_low;
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if(PID_InitStructure->OUT>PID_InitStructure->OUT_up)
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PID_InitStructure->OUT=PID_InitStructure->OUT_up;
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}
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/*
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*函数简介:增量式PID初始化结构体
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*参数说明:增量式PID参数结构体
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*参数说明:预期值
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*返回类型:无
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*备注:无
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*/
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void PID_IncrementalStructureInit(PID_IncrementalInitTypedef* PID_InitStructure,float NeedValue)
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{
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PID_InitStructure->Need_Value=NeedValue;
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PID_InitStructure->Ek=0;
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PID_InitStructure->Ek_1=0;
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PID_InitStructure->Ek_low=0;
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PID_InitStructure->Ek_up=0;
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PID_InitStructure->Kp=0;
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PID_InitStructure->Ki=0;
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PID_InitStructure->Kd=0;
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PID_InitStructure->OUT_low=-1e10;
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PID_InitStructure->OUT_up=1e10;
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}
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/*
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*函数简介:增量式PID设置参数
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*参数说明:增量式PID参数结构体
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*参数说明:单精度浮点型Kp
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*参数说明:单精度浮点型Ki
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*参数说明:单精度浮点型Kd
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*返回类型:无
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*备注:无
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*/
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void PID_IncrementalSetParameter(PID_IncrementalInitTypedef* PID_InitStructure,float kp,float ki,float kd)
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{
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PID_InitStructure->Kp=kp;
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PID_InitStructure->Ki=ki;
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PID_InitStructure->Kd=kd;
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}
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/*
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*函数简介:增量式PID设置误差为0阈值
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*参数说明:增量式PID参数结构体
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*参数说明:误差为0阈值下限
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*参数说明:误差为0阈值上限
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*返回类型:无
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*备注:无
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*/
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void PID_IncrementalSetEkRange(PID_IncrementalInitTypedef* PID_InitStructure,float ek_low,float ek_up)
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{
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PID_InitStructure->Ek_low=ek_low;
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PID_InitStructure->Ek_up=ek_up;
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}
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/*
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*函数简介:增量式PID设置输出限幅
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*参数说明:增量式PID参数结构体
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*参数说明:输出限幅下限
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*参数说明:输出限幅上限
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*返回类型:无
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*备注:无
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*/
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void PID_IncrementalSetOUTRange(PID_IncrementalInitTypedef* PID_InitStructure,float out_low,float out_up)
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{
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PID_InitStructure->OUT_low=out_low;
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PID_InitStructure->OUT_up=out_up;
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}
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/*
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*函数简介:增量式PID计算
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*参数说明:增量式PID参数结构体
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*参数说明:当前值
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*返回类型:无
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*备注:OUT=POUT+IOUT+DOUT=Kp*ΔEk+Ki*ΣΔEk+Kd*(ΔEk-ΔEk_1)=Kp*(Ek-Ek_1)+Ki*Ek+Kd*(Ek-2*Ek_1+Ek_2)
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*备注:计算结果保存在增量式PID参数结构体中
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*/
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void PID_IncrementalCalc(PID_IncrementalInitTypedef* PID_InitStructure,float NowValue)
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{
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PID_InitStructure->Now_Value=NowValue;
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PID_InitStructure->Ek_2=PID_InitStructure->Ek_1;
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PID_InitStructure->Ek_1=PID_InitStructure->Ek;
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PID_InitStructure->Ek=PID_InitStructure->Need_Value-PID_InitStructure->Now_Value;
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if(PID_InitStructure->Ek_low<PID_InitStructure->Ek&&PID_InitStructure->Ek<PID_InitStructure->Ek_up)//误差为0检测
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PID_InitStructure->Ek=0;
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PID_InitStructure->P_OUT=PID_InitStructure->Kp*(PID_InitStructure->Ek-PID_InitStructure->Ek_1);
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PID_InitStructure->I_OUT=PID_InitStructure->Ki*PID_InitStructure->Ek;
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PID_InitStructure->D_OUT=PID_InitStructure->Kd*(PID_InitStructure->Ek-2*PID_InitStructure->Ek_1+PID_InitStructure->Ek_2);
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PID_InitStructure->OUT=PID_InitStructure->P_OUT+PID_InitStructure->I_OUT+PID_InitStructure->D_OUT;
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if(PID_InitStructure->OUT<PID_InitStructure->OUT_low)//输出限幅
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PID_InitStructure->OUT=PID_InitStructure->OUT_low;
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if(PID_InitStructure->OUT>PID_InitStructure->OUT_up)
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PID_InitStructure->OUT=PID_InitStructure->OUT_up;
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}
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