感应电机变结构PID速度控制及转子电阻辨识  

Variable Structure PID Speed Control and Rotor Resistance Identification of Induction Motor

作　　者：吕小意 王艳 纪志成 严大虎 Lii Xiaoyi;Wang Yan;Ji Zhicheng;Yan Dahu(Engineering Research Center of Internet of Things Technology Applications Ministry of Education, Jiangnan University, Wuxi 214122, China)

机构地区：[1]江南大学物联网技术应用教育部工程研究中心,无锡214122

出　　处：《系统仿真学报》2017年第12期3132-3138,共7页Journal of System Simulation

基　　金：国家自然科学基金(61572238);江苏省杰出青年基金(BK20160001);江苏省产学研联合创新资金-前瞻性联合研究项目(BY2016022-24)

摘　　要：为了提高感应电机矢量控制系统的性能,提出了一种变结构PID速度控制与基于模型参考自适应(MRAS)转子电阻在线辨识相结合的控制方法。在基于瞬时无功功率的模型参考自适应系统中,通过自适应调节来辨识转子电阻。由于传统PID速度调节器存在参数不能在线改变和积分饱和现象,因此在传统PID控制器基础上融合anti-windup技术和模糊理论,设计了变结构PID速度控制器。由MATLAB仿真实验可以看出,该控制器缓解了系统的积分饱和现象,减小了速度超调;同时表明了在变结构PID速度控制下基于MRAS转子电阻辨识的有效性。With the aim of improving the performance of the vector controlled induction motor system, a novel control method which combines variable structure PID speed control with online identification of rotor resistance based on model reference adaptive system （MRAS） is proposed. The rotor resistance is identified by self-adaptive adjustment in the model reference adaptive system based on the instantaneous reactive power. Given that the parameters can not change on line and the integral saturation phenomenon often exists in traditional PID speed regulator, a variable structure PID speed controller is designed by integrating anti-windup technology with fuzzy theory based on traditional PID controller. It can be seen from the MATLAB simulation experiment that the proposed controller can reduce the integral windup phenomenon of the system and minish speed overshoot. The effectiveness of rotor resistance identification based MRAS is proved in variable structure PID speed control.

关 键 词：感应电机 转子电阻 变结构PID anti-windup技术 模糊理论 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]