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. 2022 Oct 29;19(21):14137. doi: 10.3390/ijerph192114137
Tkhis thermal energy storage in building (−)
xk the state of the system (−)
uk decision variable (−)
Jk the lowest cost from stage k to stage m (−)
Skin,T current temperature of the room (°C)
SkPAU,times the remaining start hours of the PAU (−)
SkASHP,on/off the on/off of the ASHP (−)
SkSet,T the setting of the room temperature (°C)
SkPAU,on/off the on/off of the PAU (−)
SkPAU,mode the working mode of the PAU (−)
Skshading solar radiation blocked by shading equipment (%)
Sk,minin,T minimum room temperature at time k (°C)
Sk,maxin,T maximum room temperature at time k (°C)
SkWeather outdoor weather (−)
λkcmf the weighting coefficient of discomfort cost (−)
λkcst the weighting coefficient of energy cost (−)
λkon/off the weighting coefficient of ASHP on/off cost (−)
Ckcmf discomfort cost (−)
Ckcst energy cost (kW)
Ckon/off ASHP on/off cost (−)
G solar radiation (W/m2)
Q the heating and cooling output of ASHP (kW)
Subscripts
024,k the stage index
Abbreviations
HVAC heating, ventilation and air conditioning
NZE net zero emissions
NZEB nearly zero energy buildings
MPC model predictive control
SVM support vector machine
ANN Artificial Neural Network
MPR multivariate polynomial regression
MSE Mean Square Error
MAE Mean Absolute Error
MAPE Mean Absolute Percent Error
R 2 coefficient of determination
RBFs radial basis functions
MLP multi-layer-perceptons
ASHP Air-Sourced Heat Pump
PAU Primary Air Unit
BNMI best network after multiple iterations
DP dynamic programming