Wide-area optimal damping control system research with grid and generators coordination

摘要

Due to the large number of renewable energy, the small disturbance stability of power system has drawn great concern. In order to damp small disturbance oscillation effectively, based on hierarchical control theory, the complex various power system control systems have been coordinated, and the Wide-area Optimal Damping Control System has been set up. In this system, the damping of the power system is taken as the index of the event, and the generation of the event is used as the driving force to control the system. The system can effectively solve the interaction between the AGC system and AVC system by means of the cross-iteration method, and realize the optimal control of these control systems. The IEEE system has been simulated under various operating states and the results show that the WODCS can effectively eliminate the weak damping mode of the system, and realized the optimal coordination.