Differential evolution strategies for large-scale energy resource management in smart grids

Lezama, Fernando; Sucar, Luis Enrique; de Cote, Enrique Munoz; Soares, João; Vale, Zita

http://hdl.handle.net/10400.22/17312

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Autores

Lezama, Fernando

Sucar, Luis Enrique

de Cote, Enrique Munoz

Soares, João

Vale, Zita

Resumo(s)

Smart Grid (SG) technologies are leading the modifications of power grids worldwide. The Energy Resource Management (ERM) in SGs is a highly complex problem that needs to be efficiently addressed to maximize incomes while minimizing operational costs. Due to the nature of the problem, which includes mixed-integer variables and non-linear constraints, Evolutionary Algorithms (EA) are considered a good tool to find optimal and near-optimal solutions to large-scale problems. In this paper, we analyze the application of Differential Evolution (DE) to solve the large-scale ERM problem in SGs through extensive experimentation on a case study using a 33-Bus power network with high penetration of Distributed Energy Resources (DER) and Electric Vehicles (EVs), as well as advanced features such as energy stock exchanges and Demand Response (DR) programs. We analyze the impact of DE parameter seing on four state-of-the art DE strategies. Moreover, DE strategies are compared with other well-known EAs and a deterministic approach based on MINLP. Results suggest that, even when DE strategies are very sensitive to the seing of their parameters, they can find beer solutions than other EAs, and near-optimal solutions in acceptable times compared with a MINLP approach.