永磁同步发电机耦合网络的混沌同步控制

Chaotic Synchronization Control of Permanent Magnet Synchronous Generator with Coupling Network

通过研究电力网络中永磁同步风力发电机(Permanent Magnet Synchronous Generator wind turbines,PMSGs)状态变量的全局耦合作用,分析其一系列的动力学行为。在无耦合的作用下,首先利用系统参数使PMSGs系统处于混沌状态;之后对电力网络中相同的PMSGs系统进行耦合。研究发现,基于全局耦合的PMSGs混沌系统可展现丰富的非线性动力学行为,此时不稳定状态转变成稳定运行的状态。即PMSGs系统间相互耦合作用可抑制PMSGs的混沌行为,使PMSGs处于同步运行状态。该研究对于提高风力发电的利用率和维护机电系统的安全稳定运行具有重要的意义。

By studying the global coupling effect of state variables of Permanent Magnet Synchronous Generator wind turbines(PMSGs)in power network,a series of dynamic behaviors are analyzed..The parameters of PMSGs are firstly used to make the system in a chaotic state under the action of uncoupling.When the coupling of network makes difference in PMSGs systems,it is found that the global coupling based PMSGs chaotic system can show rich nonlinear dynamic behavior and the unstable states is transformed into a stable state.In other words,the chaotic behaviors can be inhibited by network interaction in PMSGs systems and keeps the PMSGs stably in a synchronous state.Therefore,the study of this research is of great significance for improving the utilization rate of wind turbine generation and maintaining the security and stability of electromechanical system.