Abstract

In this research study, a comparison between two improved multimodel optimal controllers PID and LQ for two bases with 4 and 8 models is proposed for a variable speed variable pitch wind turbine. This turbine uses a blade pitch angle and electromagnetic torque control to achieve objectives. But we are particularly interested in minimizing the fluctuations of the electrical power and the turbine rotational speed to allow the participation of the wind turbines in the frequency regulation. A 2 MW wind turbine is considered to clarify the achieved good performances by the proposed strategy while presenting and discussing the simulation results of the two multimodel optimal controllers PID and LQ. These results show better performance for improved LQ multimodel optimal controller than the improved PID multimodel optimal controller, and with the base of the eight models compared to the base of the four models.

摘要

在这项研究中，针对变速变桨距风力涡轮机，提出了对具有 4 和 8 模型的两个基地的两种改进的多模型最优控制器 PID 和 LQ 的比较。该涡轮机使用叶片桨距角和电磁扭矩控制来实现目标。但我们特别感兴趣的是最小化电力和涡轮机转速的波动，以允许风力涡轮机参与频率调节。在展示和讨论两个多模型最优控制器 PID 和 LQ 的仿真结果时，考虑了一个 2 MW 风力涡轮机，以阐明所提出的策略所取得的良好性能。这些结果表明改进的 LQ 多模型优化控制器比改进的 PID 多模型优化控制器具有更好的性能，