bobbycar/akkuconfig/akkupack_config (Kopie 1).py

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#!/usr/bin/env python3
import numpy as np
import csv
import itertools
import math
column_label=0
column_capacity=3
column_resistance=4
config_parallel=2
config_cells=12
#config_parallel*config_cells*config_packs needed
batteriesneeded=config_parallel*config_cells
batteries=[]
batterylabels=[]
with open('12S_LiIon_Akkupack_selected.csv', 'r') as csvfile:
csvreader = csv.reader(csvfile, delimiter=';')
firstrow=True
for row in csvreader:
label=row[column_label]
capacity=row[column_capacity]
resistance=row[column_resistance]
if not firstrow:
capacity=float(capacity)
resistance=float(resistance)
batteries.append([label,capacity,resistance])
batterylabels.append(label)
firstrow=False
print(str(len(batteries))+" Batteries found")
if len(batteries)==batteriesneeded:
print("You have just enough batteries")
elif len(batteries)>batteriesneeded:
print("You have "+str(len(batteries)-batteriesneeded)+" batteries spare")
elif len(batteries)<batteriesneeded:
print("You need "+str(batteriesneeded-len(batteries))+" more batteries!")
exit()
#batteries=[["a",1],["b",2],["c",3],["d",4],["e",5],["f",6]]
bestcombination=[]
bestdist=100000000
combinations=[]
count=0
for comb_parallel1 in itertools.combinations(batteries,config_parallel):
rest1=[x for x in batteries if x not in comb_parallel1]
count+=1
print(count)
for comb_parallel2 in itertools.combinations(rest1,config_parallel):
rest2=[x for x in rest1 if x not in comb_parallel2]
for comb_parallel3 in itertools.combinations(rest2,config_parallel):
rest3=[x for x in rest2 if x not in comb_parallel3]
for comb_parallel4 in itertools.combinations(rest3,config_parallel):
rest4=[x for x in rest3 if x not in comb_parallel4]
for comb_parallel5 in itertools.combinations(rest4,config_parallel):
rest5=[x for x in rest4 if x not in comb_parallel5]
for comb_parallel6 in itertools.combinations(rest5,config_parallel):
rest6=[x for x in rest5 if x not in comb_parallel6]
for comb_parallel7 in itertools.combinations(rest6,config_parallel):
rest7=[x for x in rest6 if x not in comb_parallel7]
for comb_parallel8 in itertools.combinations(rest7,config_parallel):
rest8=[x for x in rest7 if x not in comb_parallel8]
for comb_parallel9 in itertools.combinations(rest8,config_parallel):
rest9=[x for x in rest8 if x not in comb_parallel9]
for comb_parallel10 in itertools.combinations(rest9,config_parallel):
rest10=[x for x in rest9 if x not in comb_parallel10]
for comb_parallel11 in itertools.combinations(rest10,config_parallel):
rest11=[x for x in rest10 if x not in comb_parallel11]
for comb_parallel12 in itertools.combinations(rest11,config_parallel):
combinations.append([comb_parallel1,comb_parallel2,comb_parallel3,comb_parallel4,comb_parallel5,comb_parallel6,comb_parallel7,comb_parallel8,comb_parallel9,comb_parallel10,comb_parallel11,comb_parallel12])
#evaluate current combination of comb_pack1 and comb_pack2
print(str(len(combinations))+" Combinations")
for i in combinations: #every combinations
seriescapacities=[]
for s in i: #all series
parallelcapacity=0
for p in s: #all parallels
parallelcapacity+=p[1]
seriescapacities.append(parallelcapacity)
meancapacity=np.mean(seriescapacities)
dist=0
for c in seriescapacities:
dist+=math.pow(abs(c-meancapacity),2)
if dist<bestdist:
print(str(dist)+" "+str(seriescapacities))
bestdist=dist
bestcombination=i
print("best combination with "+str(bestdist)+" distance:")
#print(bestcombination)
for i in bestcombination:
print(i)