원문정보
초록
영어
Aiming at the grid-connected problems of the double-fed induction generator (DFIG), this paper researches the control technology of the rotor excitation and the pitch angle and proposes a grid-connected DFIG joint optimization control strategy of the rotor excitation and the pitch angle based on the structure decentralized theory, and establishes the joint optimization model of the grid-connected DFIG. On the basis of the model, the rotor excitation current adaptive terminal sliding mode controller and the pitch angle controller are designed. The simulation results show that the proposed control strategy can achieve an effective control of the DFIG’s power angle and the DFIG’s rotor flux and reduce the adverse effects of the power angle when the double-fed wind generator and synchronous generator (SG) are in parallel operation. The algorithm given by this article not only improves the system's ability to resist external disturbances, but also enhances the transient stability of the power system. It has important actual significance and practical application value.
목차
1. Introduction
2. The Interaction Mechanism Analysis Of The DFIG And The Grid
2.1 The Effect of Dynamic Characteristics of the Power Angle on the Grid
2.2 Grid Failure Impact On The Dynamic Characteristic Of The DFIG
3. The Optimization Control Strategy of the DFIG Grid-Connected
3.1 The DFIG Rotor Flux Control Strategy Design
3.2 Additional Control Strategy Of The Pitch Angle Of The DFIG Grid-Connected
4 .The Grid-Connected DFIG Optimization Control Simulation
5. Conclusions
Acknowledgements
References