模糊控制試驗(yàn)

1、F南大學(xué)模糊控制課程實(shí)驗(yàn)報(bào)告彭雄威學(xué)生姓名: 指導(dǎo)教師:18 / 14院:信息科學(xué)與工程學(xué)院t=r.號(hào) :1146111671.1所示。實(shí)驗(yàn)一：本系統(tǒng)設(shè)計(jì)基于MATLAB圖形模糊推理系統(tǒng)，設(shè)計(jì)步驟如下：打開MATLAB，輸入指令fuzzy，打開模糊邏輯工具箱的圖形用戶界面窗口，新建一 個(gè)Mamdani模糊推理系統(tǒng)。(1)增加一個(gè)輸入變量，將輸入變量命名為E、Ec,將輸出變量命名U。這樣就建立了一個(gè)兩輸入單輸出的模糊推理系統(tǒng)。如圖圖1.1增加一個(gè)輸入變量(2)設(shè)計(jì)模糊化模塊：設(shè)計(jì)隸屬度函數(shù)論域范圍寸 Be wb er ship Funct ion Edit or; fuz ziewbershij

2、) Funct ion Edit or; fuzzfJ Bewbership Funct ion Edit or; fuz圖3.2設(shè)計(jì)水位誤差E模塊3.3設(shè)計(jì)水位誤差Ec模塊圖3.4設(shè)計(jì)水位輸出U模塊(4)模糊控制器的規(guī)則設(shè)計(jì)> Rule Editoe: fuzzfPile E時(shí)itOptions2 IfCe is NG) a聞 Cec is NM) then (u is WB (1)3 If (fi is MeXrwJ Cec is NS) then (u is NM) (1)4 If Ce is we) a網(wǎng) Cec is Z theru is NMi) 0】 i.lfCe is N

3、B) srwi Cec is PS) then (w is NS) Cl) 6 If Ce is MB)也網(wǎng) Cec is PMD then ( is W(1) 7.ifCe is 血urtfA Cec is pB) then (u is Z)(1) S.lf Ce is Mvl) arT 佃c is MB) then (u is NB) (1>9. If e is M町 arid (ec is NM)thein (u is NM) 0)10. If (e is NM) and (ec is NS) then (u is NM)11. If (e is NM) and (ec is 2

4、then (u is NSj e isandec EThenu isNM NS ZPSPMrlMBNMNS ZPS PMrwk not notr CornectianWfeisht:O or© arwle = D3411 ITi*69晶1112131415Ifi17 IB ia 2D 21 22 旳 24Jb 26 2? je 29FIS 忖sme: fuzzf Melp Cl05e I1Delete ruleAdd rue I Change fuie (5)通過觀察器觀察規(guī)則情況在菜單view中的rules和surface選項(xiàng)分別對(duì)應(yīng)得是規(guī)則觀測(cè)器和曲面觀測(cè)器。Kil l p Vi

5、 ever = "FiiTTfFileu-0haut n QPlot pcintE：QU1比池 1 iFtT njhf jrjn'jvn| up Eh1 CIOS(6 I圖3.7規(guī)則觀測(cè)器? Suxrace Viewer: fuzzfPile E時(shí)itOptionsK (input)X grids:15R 亡f. Iriput:42-2-4=0-2e” Y (input):Y grids:ec15k Z (outputXEvaluateHsip Gloss M*R&a血圖3.6曲面觀測(cè)器（6）保存編輯好的FIS文件Save FIS保存在（X）: I work&

6、 c? 1011 first, fiz I d iwi hlh bl llnnlll rwi II 百 gifuzif fii WBMimiBIHBIII HI IlTGizri f . £i s保存II*. £i a實(shí)驗(yàn)二：利用 MATLAB 軟件的 M 文件編輯器和實(shí)驗(yàn)一所生成的 fuzzf.FIS 文件，在 M 文件編輯器中輸入： a=readfis('fuzzf');evalfis(-0.5,-0.07;-0.5,0;-0.5,0.07; 0, -0.07;0,0;0,0.07;0.5,-0.07;0.5,0;0.5,0.07,a)便可得fuzzf.

7、FIS文件的模糊控制查詢表，其中的數(shù)據(jù)在水位誤差E的論域?yàn)?1 1,誤差變化EC的論域?yàn)?0.10.1 內(nèi)可以任意取值。a=readfis(' fuzzf ')name: ' fuzzf 'type: 'mamdani' andMethod: 'min'orMethod: 'max'defuzzMethod: 'Centroid'impMethod: 'min'aggMethod: 'max'input: 1x2 struCtoutput: 1x1 struCtrul

8、e: 1x5 struCt a=readfis(' fuzzf ');evalfis(-0.5,-0.07;-0.5,0;-0.5,0.07; 0, -0.07;0,0;0,0.07;0.5,-0.07;0.5,0;0.5,0.07,a) ans =-0.2000-0.4444-0.46670.1363-0.0014-0.22710.40000.44120.1333實(shí)驗(yàn)三利用MATLAB軟件的M文件編輯器（也可選擇 C語言）完成模糊控制查詢表的計(jì)算。注意：全部工作都由程序?qū)崿F(xiàn)，不利用FIS文件，不使用Fuzzy工具箱，包括模糊關(guān)系矩陣的求取及模糊推理、模糊判決。表1偏差E的賦值

9、表-6-5-4-3-2-10123456NB10.80.70.40.40.10000000NM0.20.710.70.300000000NS00.10.30.710.70.2000000NO00000.10.61000000P000000010.60.10000PS0000000.20.710.70.30.10PM000000000.20.710.70.3PB000000000.10.40.70.81表2偏差變化率EC的賦值表eceC-6-5-4-3-2-10123456NB10.70.30000000000NM0.30.710.70.300000000NS000.30.710.70.3000

10、000000000.30.710.70.30000PS0000000.30.710.70.300PM000000000.30.710.70.3PB00000000000.30.71表3推理語言規(guī)則表7NBNMNS0PSPMPBNBPBPBPBPBPM00NMPBPBPBPBPM00NSPMPMPMPM0NSNSNOPMPMPS0NSNMNMPOPMPMPS0NSNMNMPSPSPS0NMNMNMNMPM00NMNSNSNSNSPB00NMNSNSNSNS表4控制量U的賦值表U-6-5-4-3-2-10123456NB10.70.30000000000NM0.30.710.70.30000000

11、0NS000.30.710.70.3000000O00000.30.710.70.30000PS0000000.30.710.70.300PM000000000.30.710.70.3PB00000000000.30.71程序如下:cic;clear;E = 1,0.8,0.7,0.4,0.1,0,0,0,0,0,0,0,0;0.2,0.7,1,0.7,0.3,0,0,0,0,0,0,0,0;0,0.1,0.3,0.7,1,0.7,0.2,0,0,0,0,0,0;0,0,0,0,0.1,0.6,1,0,0,0,0,0,0;0,0,0,0,0,0,1,0.6,0.1,0,0,0,0;0,0,0,

12、0,0,0,0.2,0.7,1,0.7,0.3,0.1,0;0,0,0,0,0,0,0,0,020.7,1,0.7,0.3;0,0,0,0,0,0,0,0,0.1,0.4,0.7,0.8,1%8*13EC =1,0.7,0.3,0,0,0,0,0,0,0,0,0,0;0.3,0.7,1,0.7,0.3,0,0,0,0,0,0,0,0;0,0,0.3,0.7,1,0.7,0.3,0,0,0,0,0,0;0,0,0,0,0.3,0.7,1,0.7,0.3,0,0,0,0;0,0,0,0,0,0,0.3,0.7,1,0.7,0.3,0,0;0,0,0,0,0,0,0,0,0.3,0.7,1,0.7,

13、0.3;0,0,0,0,0,0,0,0,0,0,0.3,0.7,1%7*13U=1,0.7,0.3,0,0,0,0,0,0,0,0,0,0;0.3,0.7,1,0.7,0.3,0,0,0,0,0,0,0,0;0,0,0.3,0.7,1,0.7,0.3,0,0,0,0,0,0;0,0,0,0,0.3,0.7,1,0.7,0.3,0,0,0,0;0,0,0,0,0,0,0.3,0.7,1,0.7,0.3,0,0;0,0,0,0,0,0,0,0,0.3,0.7,1,0.7,0.3;0,0,0,0,0,0,0,0,0,0,0.3,0.7,1%7*13 rulelist= 1,1,1,1,2,4,4;1

14、,1,1,1,2,4,4;2,2,2,2,4,5,5;2,2,3,4,5,6,6;2,2,3,4,5,6,6;334,6,6,6,6;4,4,6,7,7,7,7;4,4,6,7,7,7,7%8*7for iii=1:13%偏差E的模糊值控制for jjj=1:13 for ii=1:8 for jj=1:7A_rulelist = rulelist(ii,jj); % 查模糊規(guī)則表 %* 計(jì)算 C1A'* A = E(ii,:);%取 A'C_A = U(A_rulelist,:);%取 Cifor i=1:13%求 R1Afor j=1:13 if(A(i) > C_A

15、(1,j) Ra(i,j) = C_A(1,j);%偏差率EC的模糊值控制%偏差E的模糊規(guī)則控制%偏差變化率EC的模糊規(guī)則控制elseRa(i,j) = A(i);endendendAA = zeros(1,13); %取 AA=A' 如 AA=1,0,0,0,0,0,0,0,0,0,0,0,0; %AA(1,iii) = E(ii,iii);AA(1,iii) = 1;for i=1:13 for j=1:13%先取小if(AA(j) > Ra(j,i) A_qux(j,i) = Ra(j,i);elseA_qux(j,i) = AA(j);endendendendfor i=

16、1:13max = A_qux(1,i);for j=1:13if(max <A_qux(j,i) max = A_qux(j,i); end%再取大，求和 CiAend CiA(i) = max;%*CiA%* 計(jì)算B = EC(jj,:);C_B = U(A_rulelist,:);計(jì)算完畢 *CiB'*%取 B'?%取 Ci?for i=1:13%求 R1Bfor j=1:13if(B(1,i) > C_B(1,j)elseend endendRb(i,j) = C_B(1,j);Rb(i,j) = B(1,i);BB = zeros(1,13); %取 BB

17、=B' 如 BB=1,0,0,0,0,0,0,0,0,0,0,0,0; %BB(1,jjj) = EC(jj,jjj);BB(1,jjj) = 1;for i=1:13 for j=1:13%先取小if(BB(j) >Rb(j,i) B_qux(j,i) = Rb(j,i);elseB_qux(j,i) = BB(j);endendendendfor i=1:13max = B_qux(1,i); for j=1:13 if(max <B_qux(j,i)max = B_qux(j,i); end end CiB(i) = max;%再取大，求和 CiA%* 計(jì)算 CiB&

18、#39;完畢 *%* 計(jì)算 C1'=CiA'交 CiB'* for i=1:13if CiA(i) >CiB(i)Ci(i) = CiB(i);elseCi(i) = CiA(i);endendend%* 算 C1'完畢 *C(ii-1)*7+jj,:) = Ci; % 將 Ci 存到數(shù)組 C 中，C是 56*13 的數(shù)組end%根據(jù)式Ui=C'=C1'并C2'并 for i=1:13 max = C(1,i);for j=1:56并 3'if(max < C(j,i)max = C(j,i);endendUi(i)

19、= max;end%用重心法進(jìn)行解模糊運(yùn)算，并映射為實(shí)際的控制量 sum_fe nz = 0;sum_fe nm = 0;for i=1:13sum_fe nz = sum_fe nz + (i-7)*Ui(i);sum_fe nm = sum_fe nm + Ui(i);endcore = sum_fe nz/sum_fe nm;U_c on trol(iii,jjj) = core;end endroun d(U_co ntrol.*10000)/10000;%對(duì)控制量保留小數(shù)點(diǎn)后兩位U_con trol =U_c on trol 計(jì)算結(jié)果：U control =jyju-b. 2 泊,-

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