Abstract:Aiming at the problem that chaotic oscillation may occur in power system under periodic disturbance and affect the stable operation of power system, a control method for chaotic oscillation of power system based on chaotic small disturbance suppression is proposed. The mathematical model of power system is built to simulate the chaotic oscillation process of power system and determine the relationship between disturbance and chaotic oscillation. According to the collection results of real-time operation data of power system, the characteristic parameters of chaotic oscillation signal are calculated, the system oscillation state is determined, and the control amount of chaotic disturbance suppression is calculated. With the support of chaos oscillation controller, the chaotic small disturbance suppression technology is used to limit the amplitude of chaos oscillation, thus realizing the chaotic oscillation control task of power system. From the experimental results, it can be seen that compared with the traditional control method, the amplitude and frequency of the chaotic oscillation signal of the power system are lower under the control of the optimization design method, and the control error of the amplitude and frequency of the oscillation is reduced by about 1.57db and 0.015Hz respectively, that is, the control performance of the optimization design method is better.
