Hiện tượng hỗn loạn trong hệ thống phát điện sức gió dùng máy phát không đồng bộ nguồn kép

Abstract

Chaotic behavior is beneficial in some areas, but in electric drive systems, it almost gives undesirable results, which can lead to self-oscillation, affect the quality of the systems, and even destroys the system. This is a phenomenon that only occurs with nonlinear dynamical systems,
sensitive to initial conditions and aperiodic but it is governed by deterministic laws, unlike random perturbations. DFIG system is complex,
multivariable, and strongly nonlinear, when operating under certain conditions, the system may fall into a chaotic behavior, which causes
disadvantages for the system. Therefore, the first and most important task is to identify the cause of DFIG's chaos. Based on the method of
theoretical analysis and through simulation, this study determines the chaotic phenomenon for DFIG when the parameter of stator winding
changes to a certain value. It will serve as a basis for parameterizing the system, building a control algorithm to eliminate this phenomenon,
and improving the operating quality of the system.