Secondly, if ( P_{TUi}^ > 0 ) and ( P_{TUi}^ > hat{P}_{TUi}^{disch} ), ( P_{TUi} ) calculated by (1) is determined again by using (2) and (3) based on the current allowable discharge power constraint for each transformer unit.
The optimal heavy metal loading was found around 8 g/pebble while the uranium enrichment corresponding to the 80 GWd/t discharge burnup constraint is approximately 13.7 w/o.
Specific implementation steps are described as follows: Step 1: Input the basic data of the DC microgrid, including user load information, environmental forecasts of solar irradiance, ambient temperature and wind speed, energy storage system characteristics (initial capacities, SOC and charging and discharging power constraints), and constraints and prices for power exchange with the main grid.
If so, cease iterations; otherwise, go back to Step 5. Step 1: Input the basic data of the DC microgrid, including user load information, environmental forecasts of solar irradiance, ambient temperature and wind speed, energy storage system characteristics (initial capacities, SOC and charging and discharging power constraints), and constraints and prices for power exchange with the main grid.
Discharge ratio constraints x i min ≤ x i ≤ x i max (6g) ∑ i = 1 11 x i = 1 (6h).
Secondly, if ( P_{i}^ > 0 ) and ( P_{i}^ > hat{P}_{i}^{disch} ), ( P_{i} ) calculated by (9) is determined again by using (10) based on the current allowable discharging power constraint for each PCS unit.
For energy storage, it is necessary to satisfy the charge and discharge power capacity constraint (17), the energy capacity constraint (18), and the conservation of energy constraint (19).
The method adopts the coefficient of performance (COP) as the optimization target and employs the heating capacity, water velocities and water-side pressure drops and the compressor discharge temperature as constraints.
