Abstract
In this paper, frequency control problem of a power network is discussed. The control is conducted to retain power demand supply balance by controling output of generators in power network. However, it becomes harder to retain the balance because of large volume injection of renewable energy. So strengthening of power interchange is examined. Additionally power charges will rise because of introduction cost for large-volume of renewable energy and increase of fuel cost. This paper proposes more economic and efficient frequency control method based on model predictive control. In the beginning, we describe control structure then, we describe frequency control hierarchical and cooperative model predictive control for frequency control of power network that consist of economic dispatch and load frequency control. In numerical simulation, we show the effectiveness of the proposed method in comparison with the conventional method in terms of suppression of frequency variation and fuel cost. Finally, summary is described.
