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RSS FeedsEnergies, Vol. 13, Pages 1703: Economic Dispatch of Renewable Generators and BESS in DC Microgrids Using Second-Order Cone Optimization (Energies)

 
 

4 april 2020 02:01:05

 
Energies, Vol. 13, Pages 1703: Economic Dispatch of Renewable Generators and BESS in DC Microgrids Using Second-Order Cone Optimization (Energies)
 


A convex mathematical model based on second-order cone programming (SOCP) for the optimal operation in direct current microgrids (DCMGs) with high-level penetration of renewable energies and battery energy storage systems (BESSs) is developed in this paper. The SOCP formulation allows converting the non-convex model of economic dispatch into a convex approach that guarantees the global optimum and has an easy implementation in specialized software, i.e., CVX. This conversion is accomplished by performing a mathematical relaxation to ensure the global optimum in DCMG. The SOCP model includes changeable energy purchase prices in the DCMG operation, which makes it in a suitable formulation to be implemented in real-time operation. An energy short-term forecasting model based on a receding horizon control (RHC) plus an artificial neural network (ANN) is used to forecast primary sources of renewable energy for periods of 0.5h. The proposed mathematical approach is compared to the non-convex model and semidefinite programming (SDP) in three simulation scenarios to validate its accuracy and efficiency.


 
250 viewsCategory: Biophysics, Biotechnology, Physics
 
Energies, Vol. 13, Pages 1704: Analysis and Design of Three-Phase Buck Rectifier Employing UPS to Supply High Reliable DC Power (Energies)
Energies, Vol. 13, Pages 1702: Thermal Comfort Aspects of Solar Gains during the Heating Season (Energies)
 
 
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