A new energy management strategy for a grid connected wind turbine-battery storage power plant

摘要

This paper presents an innovative energy management strategy for the power dispatch of an island grid-connected hybrid plant combining a battery energy storage system (BESS) and a wind energy conversion system (WECS). The power plant must inject power into the grid in a continuous manner according to a penalty system related to a commitment band for the injection. Aiming at the revenues maximization, an energy management system (EMS) is proposed to efficiently handle the charge/discharge cycles of the battery system as well as its state-of-charge (SoC) so that the generation engagements can be met while considering the battery lifespan. The strategy, based on model predictive control (MPC) and quadratic programming (QP), is tested through simulation with real wind farm data using Matlab Simulink.