Validation of battery energy storage control for wind farm dispatching

Integrating a Battery Energy Storage System (BESS) with a large wind farm can smooth out the intermittent power from the wind farm. This paper focuses on the experimental validation of the proposed control strategy for the BESS. The paper considers a rule based control scheme, which is the solution of the optimal control problem defined, to incorporate the operating constraints of the BESS, such as state of charge limits, charge/discharge current limits and lifetime. The goal of the control is to have the BESS provide as much smoothing as possible so that the wind farm can be dispatched on an hourly basis based on the forecasted wind conditions. The effectiveness of this control strategy has been tested by using an actual wind farm data and it is shown that optimal dispatching is achieved with the proposed method. Finally, the method is verified with an experiment and the details of the implementation are explained.