基于Fuzzy-PID双模控制的磁悬浮转子系统控制器设计  

Design of Magnetic Suspended Rotor System Controller Based on Fuzzy-PID Double Mode Control

作　　者：叶云洋[1] 胡俊达 YE Yunyang;HU Junda(Hunan Electrical College of Technology,Xiangtan 411101,China)

机构地区：[1]湖南电气职业技术学院,湖南湘潭411101

出　　处：《电工技术》2020年第12期15-16,19,共3页Electric Engineering

基　　金：湖南省科教联合基金项目:新型垂直轴磁悬浮风力发电机转子系统建模与控制策略研究(项目编号:2019JJ70087)。

摘　　要：文章针对磁悬浮轴承转子系统的开环不稳定和强烈非线性特性,在常规PID控制和模糊控制的基础上提出了一种基于模糊规则的Fuzzy-PID双模控制器结构。这种控制结构充分结合了传统PID和模糊控制的优势,使系统不但具有良好的稳态特性,而且还有很不错的动态响应特性。为了解决模糊控制器与常规PID之间功能的切换问题,采用了一种基于模糊逻辑的切换方式。通过仿真分析表明,应用Fuzzy-PID双模控制的磁悬浮轴承-转子系统的瞬态稳定和稳态性能,比单独使用PID控制器或模糊控制器有很大的提高。Aiming at the open loop instability and strong nonlinear characteristics of the magnetic suspension bearing rotor system,a fuzzy-PID dual-mode controller structure based on fuzzy rules was proposed based on the conventional PID control and fuzzy control.This control structure fully combined the advantages of traditional PID and fuzzy control,so that the system not only had good steady-state characteristics,but also had very good dynamic response characteristics.In order to solve the problem of function switching between fuzzy controller and conventional PID,a switching method based on fuzzy logic was adopted.The simulation analysis showed that the transient stability and steady-state performance of the magnetic levitation bearing-rotor system using Fuzzy-PID dual-mode control had been greatly improved compared with PID controller or fuzzy controller alone.

关 键 词：磁悬浮轴承 转子系统 模糊控制 Fuzzy-PID双模控制器 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]