if statements inside for loop issue

Question

Biniam Brhane 2022-5-9

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1714895-if-statements-inside-for-loop-issue

评论： dpb 2022-5-11

My code is suppose to compare state of charge of batteries (SOC1 SOC2 SOC3 - - -). based on that, give values to the output arguments (P1,P2,P3 - - - ). the values to be given are inside the "Pulses" variable. "Pulses" is variable containing 12 pulse signal with different duty cycles, Pulses (:,1) being the signal with the biggest duity cycle. Now what I am trying to do is if SOC1 is the highest give P1 the pulse with the biggest Duty cycle which is Pulses (:,1). if SOC1 is the second highest give P1 Pulses(:,2) which the signal with the second biggest duty cycle. the same for all Ps. this is in MATLAB Function block in Simulink. the code below is how I tried it. but I only get value for P12. I kindoff understand why it's happening but don't know how to fix it. please also suggest if you think there is better way to do it. if needed i can provide deep insight of the system.

function [P1,P2,P3,P4,P5,P6,P7,P8,P9,P10,P11,P12] = fcn(Pulses,SOC1,SOC2,SOC3,SOC4,SOC5,SOC6,SOC7,SOC8,SOC9,SOC10,SOC11,SOC12)
K1=SOC1*100000; K2=SOC2*100000; K3=SOC3*100000; K4=SOC4*100000; K5=SOC5*100000; K6=SOC6*100000;
K7=SOC7*100000; K8=SOC8*100000; K9=SOC9*100000; K10=SOC10*100000; K11=SOC11*100000; K12=SOC12*100000;
SOC = [K1 K2 K3 K4 K5 K6 K7 K8 K9 K10 K11 K12];
[A,B]= sort (SOC,'descend');
for i = 1:12
    if 1 == B(1,i)
        P1 = Pulses(:,i);
        else
        P1=0;
    end
    if 2 == B(1,i)
        P2 = Pulses(:,i);
         else
        P2=0;
    end
    
    if 3 == B(1,i)
        P3 = Pulses(:,i);
        else
        P3=0;
    end
    if 4 == B(1,i)
        P4 = Pulses(:,i);
        else
        P4=0;
    end
    if 5 == B(1,i)
        P5 = Pulses(:,i);
         else
        P5=0;
    end
    if 6 == B(1,i)
        P6 = Pulses(:,i);
        else
        P6=0;
    end
    if 7 == B(1,i)
        P7 = Pulses(:,i);
        else
        P7=0;
    end
    if 8 == B(1,i)
        P8 = Pulses(:,i);
        else
        P8=0;
    end
    if 9 == B(1,i)
        P9 = Pulses(:,i);
        else
        P9=0;
    end
    if 10 == B(1,i)
        P10 = Pulses(:,i);
        else
        P10=0;
    end
    if 11 == B(1,i)
        P11 = Pulses(:,i);
        else
        P11=0;
    end
    if 12 == B(1,i)
        P12 = Pulses(:,i);
        else
        P12=0;
    end
end

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Answer 1

dpb 2022-5-9

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1714895-if-statements-inside-for-loop-issue#answer_960620

编辑：dpb 2022-5-9

在 MATLAB Online 中打开

"I know nuthink!" about Simulink, but the problem you have in the function is primarily that you've created all those named variables instead of using arrays and the power of MATLAB syntax --

function P=fcnPulse(Pulses,SOC)
% assign output pulse array P from Pulses duty cycle in descending order
% of strength of input batteries array, SOC
  [~,ix]=sort(SOC,'descend');
  P(ix,:)=Pulses;
end

Now, how you get to/from the Simulink model individual batteries/pulses to the MATLAB arrays I don't know, but there must be a facility with which to do so.