基于反馈线性化原理的直驱风力发电机组控制系统设计

提出一种基于反馈线性化原理的控制策略来设计直驱型风力发电机组(D-DPMSG)控制系统。为了使系统稳定运行在最大功率区域和快速追踪最大功率特性曲线,建立了系统各部分的动态模型并推导出了该非线性控制策略。在随机风速扰动下,相对于传统的PID控制策略,基于反馈线性化原理设计的非线性控制器使系统的转速响应超调更小,响应速度和恢复速度更快,效果更好。最后,大量仿真证明了该控制策略在追踪最优功率曲线的有效性。

Feedback-Linearization Control of Direct-Driven Permanent Magnet Synchronous Generator Wind Turbines

This paper proposed a control strategy based on feedback-linearization control theory to design the controller of the direct-driven permanent magnet synchronous generators(D-DPMSG) system.In order to maintain the D-DPMSG system stably operating on the optimal regimes,tracking the wind turbines’ optimal operating characteristic curve quickly,a nonlinear control strategy based on dynamic models of the components of the system is derived.Comparing to the conventional PID control strategy,this new nonlinear controller based on feedback-linearization control theory shows better performance of rotor speed with smaller overshot and faster response when subjecting to stochastic wind.Intensive simulations are shown to demonstrate the effectiveness of the proposed scheme in tracking the maximum power operating curve.