A Laboratory-Implemented Two-Areas Power System to Identify Electromechanical Modes using PMUs

Abstract

To reinforce the lack of physical understanding of phenomena and hands-on experience of the software-based power engineering education is necessary that the student get the opportunity to apply as many of the concepts presented in the theoretical and lecture portions of the course as allowable and acquire some hands-on experience and receive training in practical aspects of the subject. In this way, the problem of the real implementation of a transmission grid is addressed. This paper aims to develop a physical two-areas power system implemented in a real laboratory and equipped with generators, loads, transmission lines, relays, PMUs, and ancillary equipment for educational purposes. All this together makes it possible to study dynamic phenomena with a real small power system. Thus, with this laboratory implementation, electromechanical swings such as inter-area oscillations after some disturbance can be shown. So, this paper focuses on identifying low-frequency electromechanical modes in power systems, giving a mix of laboratory experiments with a software-based algorithm.