模糊PID控制温控系统设计C语言程序代码汇总文档格式.docx

1、float P_temp=20.0;float Kp;float Ki;float Kd;float Err=0.0;float Last_Err=0.0;float D_Err=0.0;float Sum_Err=0.0;float U=0.0;/* 函数功能：延时*/void delay_ms（uchar z） uchar i; uchar j; for（i=z;i0;i-） for（j=360;jj-）; void delay_us（uchar z） i-）;void LCD_WriteData（uchar Dat） RS = 1; P1 = Dat; delay_us（10）; EN

2、= 1; EN = 0;void LCD_WriteCOM（uchar com） RS = 0; P1 = com;void Show_Num（uchar x,uchar y,uchar n,float num） uchar a3; uint Temp; Temp=（int）num; for（i=0;i=200） S_temp=200; while（!KEY1）; if（KEY2=0） if（KEY2=0）0） S_temp=S_temp-1; else if（S_temp=0） S_temp=0;KEY2）; if（KEY3=0） if（KEY3=0） if（S_temp if（U U=20

3、0; flag=1; U=-U; flag=0; /*PID参数Kp的计算 */ float fuzzy_kp（float e, float ec） /e,ec，表示误差，误差变化率 float Kp_calcu; uchar num,pe,pec; float code eRule7=-3.0,-2.0,-1.0,0.0,1.0,2.0,3.0; /误差E的模糊论域 float code ecRule7=-3.0,-2.0,-1.0,0.0,1.0,2.0,3.0; /误差变化率EC的模糊论域 float eFuzzy2=0.0,0.0; /隶属于误差E的隶属程度 float ecFuzzy

4、2=0.0,0.0; /隶属于误差变化率EC的隶属程度 float code kpRule4=0.0,8.0,16.0,24.0; /Kp的模糊子集 float KpFuzzy4=0.0,0.0,0.0,0.0; /隶属于Kp的隶属程度 int code KpRule77= /Kp的模糊控制表 3,3,3,3,3,3,3, 2,2,2,2,1,2,2, 1,1,1,1,1,1,1, 1,1,0,1,0,1,1, 0,0,1,0,0,1,0, 0,1,0,1,0,0,2, 3,3,3,3,3,3,3 ; /*误差E隶属函数描述*/ if（eeRule0） eFuzzy0 =1.0; pe = 0

5、; else if（eRule0=e & eeRule1） eFuzzy0 = （eRule1-e）/（eRule1-eRule0）; else if（eRule1eRule2） eFuzzy0 = （eRule2 -e）/（eRule2-eRule1）; pe = 1; else if（eRule2eRule3） eFuzzy0 = （eRule3 -e）/（eRule3-eRule2）; pe = 2; else if（eRule3eRule4） eFuzzy0 = （eRule4-e）/（eRule4-eRule3）; pe = 3; else if（eRule4eRule5） eFuz

6、zy0 = （eRule5-e）/（eRule5-eRule4）; pe = 4; else if（eRule5eRule6） eFuzzy0 = （eRule6-e）/（eRule6-eRule5）; pe = 5; eFuzzy0 =0.0; pe =5; eFuzzy1 =1.0 - eFuzzy0; /*误差变化率EC隶属函数描述*/ if（ececRule0） ecFuzzy0 =1.0; pec = 0; else if（ecRule0=ec & ececRule1） ecFuzzy0 = （ecRule1 - ec）/（ecRule1-ecRule0）; pec = 0 ; el

7、se if（ecRule1ecRule2） ecFuzzy0 = （ecRule2 - ec）/（ecRule2-ecRule1）; pec = 1; else if（ecRule2ecRule3） ecFuzzy0 = （ecRule3 - ec）/（ecRule3-ecRule2）; pec = 2 ; else if（ecRule3ecRule4） ecFuzzy0 = （ecRule4-ec）/（ecRule4-ecRule3）; pec=3; else if（ecRule4ecRule5） ecFuzzy0 = （ecRule5-ec）/（ecRule5-ecRule4）; pec=

8、4; else if（ecRule5ecRule6） ecFuzzy0 = （ecRule6-ec）/（ecRule6-ecRule5）; pec=5; ecFuzzy0 =0.0; pec = 5; ecFuzzy1 = 1.0 - ecFuzzy0; /*查询模糊规则表*/ num =KpRulepepec; KpFuzzynum += eFuzzy0*ecFuzzy0; num =KpRulepepec+1; KpFuzzynum += eFuzzy0*ecFuzzy1; num =KpRulepe+1pec; KpFuzzynum += eFuzzy1*ecFuzzy0; num =K

9、pRulepe+1pec+1; KpFuzzynum += eFuzzy1*ecFuzzy1;/*加权平均法解模糊*/ Kp_calcu=KpFuzzy0*kpRule0+KpFuzzy1*kpRule1+KpFuzzy2*kpRule2+KpFuzzy3*kpRule3;return（Kp_calcu）;PID参数Ki的计算 float fuzzy_ki（float e, float ec） float Ki_calcu; float code kiRule4=0.00,0.01,0.02,0.03; float KiFuzzy4=0.0,0.0,0.0,0.0; int code KiRu

10、le77= 0,0,0,0,0,0,0, 2,0,0,0,0,0,1, /*误差隶属函数描述*/if（e /*误差变化隶属函数描述*/ /*查询模糊规则表*/ num =KiRulepepec; KiFuzzynum += eFuzzy0*ecFuzzy0; num =KiRulepepec+1; KiFuzzynum += eFuzzy0*ecFuzzy1; num =KiRulepe+1pec; KiFuzzynum += eFuzzy1*ecFuzzy0; num =KiRulepe+1pec+1; KiFuzzynum += eFuzzy1*ecFuzzy1; /*加权平均法解模糊*/ Ki_calcu=KiFuzzy0*kiRule0+KiFuzzy1*kiRule1+KiFuzzy2*kiRule2+KiFuzzy3*kiRule3; return（Ki_calcu）;/*