Table 1 Decision variables. Index t: Current time step.
No. | Decision variables | Description | Type | |
|---|---|---|---|---|
Generation | 1 | \( {P}_t^{available} \) | Actual available electrical output power of the CHP [kW] | C |
2 | \( {P}_t^{set, elec} \) | Set value for the electrical output power of the CHP [kW] | C | |
3 | \( {P}_t^{thermal} \) | Thermal output power of the CHP [kW] | C | |
4 | \( {\delta}_t^{on} \) | If CHP is in operating mode \( {\delta}_t^{on} \)= 1, else 0 | B | |
5 | \( {\delta}_t^{start- up} \) | Start-up process in t: \( {\delta}_t^{start- up} \)= 1, else 0 | B | |
Consumption | 6 | \( {P}_t^{fuel} \) | Fuel consumption of the CHP [kW] | C |
Thermal storage | 7 | E t | State of charge [kWh] | C |
8 | \( {Q}_t^{charge} \) | Charging power [kW] | C | |
9 | \( {\dot{Q}}_t^{discharge} \) | Discharging power [kW] | C |