## Nomenclature  
Variables  
\(C_{\text{gp}}\)  
cost of waste-to-energy power  
\(P_{\text{gp}}(t)\)  
electrical power of waste-to-energy power  
\(P_{\text{load}}(t)\)  
electrical load of the distribution network  
\(P_{\text{esgrid}}(t)\)  
exchanged electrical power between the micro energy grid and distribution network  
\(\overset{\rightarrow}{A}\)  
convergence factors  
\(P_{\text{ASHP}}(t)\)  
electrical power of the air-source heat pump in exchanging cooling or heating power  
\(P_{\text{WT}}(t)\)  
electrical power of wind power  
\(P_{\text{CASHP}}(t)\)  
exchanged cooling power of the air-source heat pump  
\(P_{\text{AC}}(t)\)  
cooling power of the lithium-bromide absorption-type refrigerator  
\(P_{\text{estor}}(t)\)  
charging or discharging cooling power of the cooling storage tank  
\(P_{\text{PV}}(t)\)  
electrical power of PV  
\(P_{\text{HASHP}}(t)\)  
exchanged heating power of the air-source heat pump  
\(P_{\text{EB}}(t)\)  
heating power of the heat-recovery boiler  
\(Z_{1}(t)\)  
price of purchasing electricity for the micro energy grid  
\(\overset{\rightarrow}{U_{i}}(t)\)  
voltage of node \(i\)  
convergence factors  
\(\Delta U_{i}(t)\)  
voltage deviation of the distribution network  
\(U_{\text{R}}\)  
rated value of the nodal voltage  
\(P_{\text{loss}}(t)\)  
active power loss of the distribution network  
\(\overset{\rightarrow}{K}\)  
swing factors  
\(P_{\text{MT}}(t)\)  
electrical power of the microturbine  
\(C_{x}(t)\)  
equipment maintenance cost of micro-source \(x\)  
fuel cost of micro-source \(x\)  
\(E_{x}\)  
initial fixed investment cost of micro-source \(x\)  
\(P_{\text{estor}}(t)\)  
charging or discharging electrical power of the battery storage  
\(P_{x}(t)\)  
electrical power of micro-source \(x\)  
heating power of the gas-fired boiler  
\(P_{\text{lstor}}(t)\)  
charging or discharging heating power of the heating storage tank  
\(Z_{2}(t)\)  
price of selling electricity for the micro energy grid  
_Abbreviations_  
PSO  
particle swarm optimization  
IWO  
invasive weed optimization  
GWO  
grey wolf optimization/evolutionary population dynamics  
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