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北京石油化工学院2026年研究生招生接收调剂公告
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xizi19880211

新虫 (初入文坛)

[求助] 1stopt求最小值 已有1人参与

如果是非线性约束求最值,并且约束条件里面的量是变化,比如是随时间变化的,可以用1stopt来实现么?MATlab的GA工具箱可以实现么?求实例代码。
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xizi19880211

新虫 (初入文坛)

引用回帖:
10楼: Originally posted by dingd at 2013-12-30 21:56:16
Eb(k)=Eb(k-1)-Pb(k)*k*0.8;
Ec(k)=Ec(k-1)-Pc(k)*k*0.98;

Pb,Pc又各是什么?没见给出啊!

哦,功率Pb(k)=Eb(k)/k;Pc(k)=Ec(k)/k;
11楼2013-12-30 21:58:26
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feixiaolin

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【答案】应助回帖


fegg7502: 金币+1, 应助指数+1, 3ks 2013-12-31 08:38:49
可以求,约束条件设成循环变量就成。
2楼2013-12-30 09:12:53
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xizi19880211

新虫 (初入文坛)

引用回帖:
2楼: Originally posted by feixiaolin at 2013-12-30 09:12:53
可以求,约束条件设成循环变量就成。

也就是说把约束条件那一块用循环来实现?
代码在下面,帮我看看如何循环,谢谢
Pw=[25.3300000000000 25.3300000000000 25.6700000000000 25.6700000000000 33.3300000000000 34.6700000000000 38.3300000000000 33 28 21 14.6700000000000 14.3300000000000 4.43000000000000 5.32000000000000 10.3300000000000 9.88000000000000 8.53000000000000 4.43000000000000 3.33000000000000 3.33000000000000 5.03000000000000 8.01000000000000 5 9.03000000000000 10.9900000000000 10.5300000000000 12.52 20 23.98 30.99 30 28.33 27.53 21.56 27.01 30.32 46.98 46.07 55.65 51.55 59.88 53.66 52.03 47.55 40 53.09 54.99 53.22 50.02];
Pl=[15 15 15 15 15 15 28.9900000000000 28.9900000000000 28.9900000000000 28.9900000000000 28.9900000000000 28.9900000000000 16.5500000000000 16.5500000000000 16.5500000000000 16.5500000000000 9.59000000000000 9.59000000000000 9.59000000000000 9.59000000000000 9.59000000000000 9.59000000000000 9.59000000000000 9.59000000000000 9.59000000000000 23.3300000000000 23.3300000000000 23.3300000000000 23.3300000000000 23.3300000000000 23.3300000000000 23.3300000000000 23.3300000000000 45.8800000000000 45.8800000000000 45.8800000000000 45.8800000000000 45.8800000000000 45.8800000000000 45.8800000000000 45.8800000000000 45.8800000000000 49.5500000000000 49.5500000000000 49.5500000000000 49.5500000000000 30.8900000000000 30.8900000000000 30.8900000000000];
Eb(0)=1.2e-3*x(1);
Ec(0)=3.0375e-6*x(2);
for k=1:49
    if Pw(k)-Pl(k)>0;
        Eb(k)=Eb(k-1)+Pb(k)*k*0.7;
        Ec(k)=Ec(k-1)+Pc(k)*k*0.98;
    else
        Eb(k)=Eb(k-1)-Pb(k)*k*0.8;
        Ec(k)=Ec(k-1)-Pc(k)*k*0.98;
    end
end
for k=1:49
    if dp=Pw(k)*0.95-Pl(k)>0;
        Elsp(k)=0;
    else
        Elsp(k)=[Pl(k)-Pw(k)]*0.95*k;
    end
    LPSP++=Elsp(k)/Pl(k);
end;
MinFunction 0.288*x(1)+7.35e-4*x(2);
Eb(k)*1000/1.2<=x(1)<=Eb(k)*1000/0.72; Ec(k)*100000/0.3037<=x(2)<=Ec(k)*1000000/0.267;x(1)<=0.7*[Pb(k)+Pc(k)]*1000/1.2;
3楼2013-12-30 10:33:28
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xizi19880211

新虫 (初入文坛)

引用回帖:
4楼: Originally posted by feixiaolin at 2013-12-30 13:04:30
LoopConstant

什么意思?初学者,有好多不懂,请问可以细说一下么
5楼2013-12-30 20:11:44
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