Identification of low frequency oscillations in power system

Abstract

In power system, stability problem and problems with electromechanical oscillations or generators swinging are consistent in power system. Electromechanical oscillations are noticeable in characteristic variables of synchronous generators. Consequences of synchronous generator connecting on grid are physical nature, apropos more generators connecting on one power system. The responses of power system on any system disturbance are electromechanical oscillations. Oscillations can be low damped or undamped with constant or increasing amplitude, so they can achieve value which can disrupt the system operation. The monitoring of power system electromechanical oscillations is very important in the frame of modern power system management and control. This paper presents techniques for identification and analysis of low-frequency oscillations. Simulations and analysis shall be performed on Two-Area Test system.