Kalman-FOPID算法在数控恒流源中的控制研究  

Research of Kalman-FOPID algorithm in numerical control constant current source

作　　者：曹珍贯[1] 余俊峰 李智威 Cao Zhenguan;Yu Junfeng;Li Zhiwei(College of Electrical and Information Engineering,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学电气与信息工程学院,安徽淮南232001

出　　处：《电子技术应用》2018年第7期151-154,共4页Application of Electronic Technique

基　　金：国家自然基金联合基金(U1610120);国家自然基金青年基金(51604011)

摘　　要：光学测量领域中,光源对恒流源的要求较高,现有的恒流源系统存在着系统噪声与测量噪声,影响了电流的输出精度。将Kalman滤波算法与FOPID控制策略相结合,构建Kalman-FOPID控制器,在以BUCK电路为核心的流控型恒流源系统数学模型的基础上,利用MATLAB产生随机噪声,进行电流控制研究。仿真及实物验证表明,Kalman-FOPID控制器可以有效滤除恒流源系统的噪声干扰,提高输出电流的控制精度。In the field of optical measurement, the light source has higher requirements to the constant current source, and the ex-isting constant current source system has the system noise and measurement noise, which affects the output precision of the current.This paper combines Kalman filter algorithm with FOPID control strategy, constructs Kalman-FOPID controller, based on the math-ematical model of flow control constant current source system based on BUCK circuit, generates random noise by MATLAB, and carries out current control research. Simulation and physical verification show that the Kalman-FOPID controller can effectively filter the noise interference of the constant current source system and improve the control precision of the output current.

关 键 词：恒流源 Kalman-FOPID 电流控制 

分 类 号：TN86[电子电信—信息与通信工程]