Adaptive Event-Triggered Load Frequency Control for Multi-Area Power Systems

Abstract

Load Frequency Control (LFC) is an important part of the power system, which not only reduces frequency deviation to zero when the system is disturbed, but also ensures that the power exchanged between interconnected power systems remains at the desired value. With the development of power systems, the large amount of data transmission can cause tremendous pressure on communication transmission. This paper focuses on the LFC scheme of multi-area interconnected power systems under random disturbances. Considering the limited network resources, this paper will introduce the adaptive event-triggered mechanism to reduce the data transmission frequency and can achieve the expected control performance. Firstly, the LFC scheme for multi-area interconnected power systems is designed. Secondly, the event-triggered controller is added and an adaptive algorithm is given. Finally, the simulation results are used to demonstrate that the adaptive event-triggered LFC scheme can reduce the number of data transmissions, save communication resources, and achieve the expected control performance.