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» Agprice
» Constraint
» Curve
» Decent
» Distrib
» Economy
» Efficient
» Factory
» Farm
» Food
» Hydro
» Logic
» Manpower
» Market
» Milk
» Mining
» OandX
» Opencast
» Refinery
Tariff
» TSP
» Yield
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| Model Tariff |
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MODEL TARIFF |
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SET |
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maxi={1 .. 3}, |
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maxt={1 .. 5}; |
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DATA |
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minlevel[maxi]=[0.85,1.25,1.5], |
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maxlevel[maxi]=[2,1.75,4], |
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costph[maxi]=[1,2.6,3], |
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excostph[maxi]=[2,1.3,3], |
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exctminl[maxi]=[1.7,1.625,4.5], |
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startcost[maxi]=[2,1,0.5], |
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demand[maxt]=[15,30,25,40,27], |
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nhours[maxt]=[6,3,6,3,6], |
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number[maxi]=[12,10,5]; |
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VARIABLES |
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out[maxi,maxt] integer, |
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num[maxi,maxt] integer, |
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nst[maxi,maxt] integer; |
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OBJECTIVE |
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MINIMIZE cost = sum{i in maxi, t in maxt} (excostph[i]*nhours[t]*out[i,t] - exctminl[i]*nhours[t]*num[i,t] + costph[i]*nhours[t]*num[i,t] + startcost[i]*nst[i,t]); |
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CONSTRAINTS |
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for {t in maxt} { dem{t} : sum {i in maxi} out[i,t] >= demand[t], |
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guar{t}: sum {i in maxi} maxlevel[i]*num[i,t] >= 1.15*demand[t], |
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for {i in maxi} { min{i,t} : out[i,t] - minlevel[i]*num[i,t] >= 0, |
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max{i,t} : out[i,t] - maxlevel[i]*num[i,t] <= 0, |
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st{i,t,t>1} : nst[i,t] - num[i,t] + num[i,t-1] >= 0, |
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st{i,t,t=1} : nst[i,t] - num[i,t] + num[i,maxt] >= 0, |
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bounds{i,t} : num[i,t] <= number[i], |
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bounds{i,t} : nst[i,t] <= number[i] } }; |
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END MODEL |
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solve TARIFF; |
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print solution for TARIFF >> "tariff.sol"; |
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quit; |
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