计及变流器影响的直驱式永磁同步发电机二阶自抗扰控制

SECOND-ORDER ACTIVE DISTURBANCE REJECTION CONTROL OF DIRECT-DRIVEN PERMANENT MAGNET SYNCHRONOUS GENERATORS CONSIDERING INFLUENCE OF CONVERTER

研究基于新型自抗扰技术的直驱式永磁同步发电机电气控制系统。考虑变流器对控制系统输出电压的影响,建立发电机组的数学模型,以此为基础设计二阶自抗扰控制器,对设计的扩张状态观测器和控制器的收敛性进行分析并给出控制参数配置方法。通过仿真对所提控制系统的可行性及控制性能进行定量分析,结果表明,该控制系统能够快速稳定的控制发电机组的运行过程,且相比传统的矢量控制及一阶自抗扰控制具有更好的动态性能及鲁棒性能。

An electric control system of direct-drive permanent magnet synchronous generator based on new active disturbance rejection technology is studied. Considering the influence of the converter on the output voltage of the control system,a mathematical model of the generator set is established,and based on this,a second-order active disturbance rejection controller(ADRC)is designed. The proposed extended state observer and the convergence of the controller are analyzed,and the control parameter configuration method is given. The feasibility and control performance of the proposed control system are quantitatively analyzed by simulation. The results show that the proposed control system can control the operation process of the generator set quickly and stably,and has better dynamic performance and robust performance than the traditional vector control and first-order ADRC.