-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathbms.py
168 lines (116 loc) · 9.2 KB
/
bms.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
import json
import logging
import random
import datetime
from mysql_database.Database import Database
class BMS():
def __init__(self):
self.batteries_status = {'time_stamp':None, 'batteries':{},
'hourly_discharging': {"0":0,"1":0,"2":0,"3":0,"4":0,"5":0,
"6":0,"7":0,"8":0,"9":0,"10":0,"11":0,"12":0,"13":0,"14":0,
"15":0,"16":0,"17":0,"18":0,"19":0,"20":0,"21":0,"22":0,"23":0}}
self.reset_hourly_discharging_flag = True
self.db = Database()
self.load_batteries_info()
self.load_batteries_day_data_from_db()
def load_batteries_info(self):
with open('home_configurations.json') as f:
HOME_CONFIGURATIONS = json.load(f)
i = 1
for battery_capacity in HOME_CONFIGURATIONS['batteries_capacity_kwh']:
battery_name = 'battery_' + str(i)
if battery_name not in self.batteries_status['batteries']:
self.batteries_status['batteries'][battery_name] = {"capacity_kwh": battery_capacity,
"max_charge_speed_w": HOME_CONFIGURATIONS['batteries_charge_max_speed_w_second'][i-1],
"current_energy_wh":battery_capacity*1000,
"is_charging":0,
"status":'ideal',
"max_output_w": round(battery_capacity*1000/3600, 2)}
i +=1
self.batteries_status['batteries']['battery_3']['current_energy_wh'] = 10000
self.batteries_status['batteries']['battery_2']['current_energy_wh'] = 8600
self.batteries_status['batteries']['battery_1']['current_energy_wh'] = 9860
def load_batteries_day_data_from_db(self):
result = self.db.load_batteries_day_data()
if result:
for record in result:
battery_name = 'battery_' + str(record[0])
self.batteries_status['batteries'][battery_name]['current_energy_wh'] = float(record[1])
self.batteries_status['hourly_discharging'][str(record[-1].hour)] = float(record[2])
def reset_hourly_discharging(self):
time_stamp = str(datetime.datetime.now().replace(microsecond=0))
current_hour = time_stamp.split()[1].split(':')[0]
if int(current_hour) == 0 and self.reset_hourly_discharging_flag:
self.batteries_status['hourly_discharging'] = {"0":0,"1":0,"2":0,"3":0,"4":0,"5":0,"6":0,
"7":0,"8":0,"9":0,"10":0,"11":0,"12":0,"13":0,
"14":0,"15":0,"16":0,"17":0,"18":0,"19":0,"20":0,
"21":0,"22":0,"23":0}
self.reset_hourly_discharging_flag = False
elif int(current_hour) != 0:
self.reset_hourly_discharging_flag = True
def charge_batteries(self, access_power_w, last_battery_charged = None):
min_energy_battery = 'battery_1'
min_energy = self.batteries_status['batteries'][min_energy_battery]['current_energy_wh']
full_charged_counter = 0
loss = 1 - random.randint(850,1000)/1000
for battery in self.batteries_status['batteries'].keys():
if int(self.batteries_status['batteries'][battery]['current_energy_wh']) == self.batteries_status['batteries'][battery]['capacity_kwh']*1000:
full_charged_counter += 1
if self.batteries_status['batteries'][battery]['current_energy_wh'] < min_energy and battery != last_battery_charged:
min_energy = self.batteries_status['batteries'][battery]['current_energy_wh']
min_energy_battery = battery
self.batteries_status['batteries'][battery]['status'] = 'ideal'
if full_charged_counter == len(self.batteries_status['batteries'].keys()):
self.batteries_status['batteries'][min_energy_battery]['status'] = 'ideal'
if min_energy_battery == last_battery_charged or full_charged_counter == len(self.batteries_status['batteries'].keys()):
return access_power_w
if access_power_w > self.batteries_status['batteries'][min_energy_battery]['max_charge_speed_w']:
access = access_power_w - self.batteries_status['batteries'][min_energy_battery]['max_charge_speed_w']
access_power_w = self.batteries_status['batteries'][min_energy_battery]['max_charge_speed_w']
self.batteries_status['batteries'][min_energy_battery]['current_energy_wh'] += access_power_w - loss*access_power_w
self.batteries_status['batteries'][min_energy_battery]['current_energy_wh'] = round(self.batteries_status['batteries'][min_energy_battery]['current_energy_wh'] , 2)
self.batteries_status['batteries'][min_energy_battery]['is_charging'] = 1
if self.batteries_status['batteries'][min_energy_battery]['current_energy_wh'] > self.batteries_status['batteries'][min_energy_battery]['capacity_kwh']*1000:
self.batteries_status['batteries'][min_energy_battery]['current_energy_wh'] = self.batteries_status['batteries'][min_energy_battery]['capacity_kwh']*1000
self.batteries_status['batteries'][min_energy_battery]['is_charging'] = 0
self.charge_batteries(access_power_w = round(access,2), last_battery_charged = min_energy_battery)
else:
self.batteries_status['batteries'][min_energy_battery]['current_energy_wh'] += access_power_w - loss*access_power_w
self.batteries_status['batteries'][min_energy_battery]['current_energy_wh'] = round(self.batteries_status['batteries'][min_energy_battery]['current_energy_wh'] , 2)
self.batteries_status['batteries'][min_energy_battery]['is_charging'] = 1
if self.batteries_status['batteries'][min_energy_battery]['current_energy_wh'] > self.batteries_status['batteries'][min_energy_battery]['capacity_kwh']*1000:
self.batteries_status['batteries'][min_energy_battery]['current_energy_wh'] = self.batteries_status['batteries'][min_energy_battery]['capacity_kwh']*1000
self.batteries_status['batteries'][min_energy_battery]['is_charging'] = 0
self.batteries_status['batteries'][min_energy_battery]['status'] = 'charging'
self.reset_hourly_discharging()
def discharge_batteries(self, access_power_w, last_battery_discharged = None):
max_energy_battery = 'battery_1'
max_energy = 0
full_discharged_counter = 0
time_stamp = datetime.datetime.now().replace(microsecond=0)
current_hour = str(time_stamp.hour)
for battery in self.batteries_status['batteries'].keys():
if int(self.batteries_status['batteries'][battery]['current_energy_wh']) == 0:
self.batteries_status['batteries'][battery]['status'] = 'ideal'
full_discharged_counter +=1
if self.batteries_status['batteries'][battery]['current_energy_wh'] > max_energy and battery != last_battery_discharged:
max_energy = self.batteries_status['batteries'][battery]['current_energy_wh']
max_energy_battery = battery
if max_energy_battery == last_battery_discharged or full_discharged_counter == len(self.batteries_status['batteries'].keys()):
self.batteries_status['batteries'][max_energy_battery]['status'] = 'ideal'
return access_power_w
if access_power_w > self.batteries_status['batteries'][max_energy_battery]['max_output_w']:
self.batteries_status['batteries'][max_energy_battery]['current_energy_wh'] -= self.batteries_status['batteries'][max_energy_battery]['max_output_w']
self.batteries_status['batteries'][max_energy_battery]['current_energy_wh'] = round(self.batteries_status['batteries'][max_energy_battery]['current_energy_wh'] , 2)
self.batteries_status['hourly_discharging'][current_hour] += self.batteries_status['batteries'][max_energy_battery]['max_output_w']
self.batteries_status['hourly_discharging'][current_hour] = round(self.batteries_status['hourly_discharging'][current_hour],2)
self.discharge_batteries(access_power_w - self.batteries_status['batteries'][max_energy_battery]['max_output_w'], last_battery_discharged = max_energy_battery)
elif self.batteries_status['batteries'][max_energy_battery]['current_energy_wh'] - access_power_w < 0:
return access_power_w
else:
self.batteries_status['batteries'][max_energy_battery]['current_energy_wh'] -= access_power_w
self.batteries_status['batteries'][max_energy_battery]['current_energy_wh'] = round(self.batteries_status['batteries'][max_energy_battery]['current_energy_wh'] , 2)
self.batteries_status['hourly_discharging'][current_hour] += access_power_w
self.batteries_status['hourly_discharging'][current_hour] = round(self.batteries_status['hourly_discharging'][current_hour],2)
self.batteries_status['batteries'][max_energy_battery]['status'] = 'discharging'
self.reset_hourly_discharging()