scholarly journals Assessment of flexibility index integration into the expansion planning of clean power resources and energy storage systems in modern distribution network using benders decomposition

2019 ◽  
Vol 14 (2) ◽  
pp. 231-242 ◽  
Author(s):  
Sina Ghaemi ◽  
Javad Salehi
Keyword(s):  
Energy Storage ◽  
Benders Decomposition ◽  
Storage Systems ◽  
Distribution Network ◽  
Energy Storage Systems ◽  
Expansion Planning ◽  
Power Resources ◽  
Modern Distribution ◽  
Flexibility Index

scholarly journals Dynamic Coordinated Active–Reactive Power Optimization for Active Distribution Network with Energy Storage Systems

2019 ◽  
Vol 9 (6) ◽  
pp. 1129 ◽  
Author(s):  
Lingling Wang ◽  
Xu Wang ◽  
Chuanwen Jiang ◽  
Shuo Yin ◽  
Meng Yang
Keyword(s):  
Energy Storage ◽  
Reactive Power ◽  
Storage Systems ◽  
Distribution Network ◽  
Mixed Integer ◽  
Reactive Power Optimization ◽  
Power Losses ◽  
Energy Storage Systems ◽  
Active Distribution Network ◽  
Second Order Cone

This paper proposes a coordinated active–reactive power optimization model for an active distribution network with energy storage systems, where the active and reactive resources are handled simultaneously. The model aims to minimize the power losses, the operation cost, and the voltage deviation of the distribution network. In particular, the reactive power capabilities of distributed generators and energy storage systems are fully utilized to minimize power losses and improve voltage profiles. The uncertainties pertaining to the forecasted values of renewable energy sources are modelled by scenario-based stochastic programming. The second-order cone programming relaxation method is used to deal with the nonlinear power flow constraints and transform the original mixed integer nonlinear programming problem into a tractable mixed integer second-order cone programming model, thus the difficulty of problem solving is significantly reduced. The 33-bus and 69-bus distribution networks are used to demonstrate the effectiveness of the proposed approach. Simulation results show that the proposed coordinated optimization approach helps improve the economic operation for active distribution network while improving the system security significantly.

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