变结构控制Buck变换器直流电动机调速  

VSC buck converter for d-c motor speed regulation

作　　者：林定笑[1] 郑耀林[2] 

机构地区：[1]福建工程学院机电及自动化工程系,福建福州350014 [2]华侨大学机电学院,福建泉州362021

出　　处：《福建工程学院学报》2006年第3期338-342,共5页Journal of Fujian University of Technology

基　　金：国务院侨办科研基金资助项目(05QZR09);福建工程学院科研发展基金资助项目(GY-Z0327)

摘　　要：提出一种直流电动机降压调速新方法,用双滑模面变结构控制Buck变换器进行直流电动机降压调速,双滑模面分别实现直流电动机内外环控制,内环滑模面用于电流控制环,外环滑模面用于转速控制环。通过仿真和比较表明,这种变结构控制降压调速,可得到平滑无级调速;上升时间、调整时间均很小;有很强的鲁棒性;电枢电流和电磁转矩冲击可控制在允许值内。This paper presents a new control method for the speed regulation of the voltage drop of d-c motor by Buck converter. It constructs a two-loop variable structure controller（VSC）, one sliding surface of which adopts the current as the feedback parameter for the inner loop, and the other sliding surface of which adopts the rotational speed as the outer loop control. Through the simulation and comparison, it is demonstrated this control strategy can realize smooth infinitely variable speed regulation with the rise time and the alignment time being shortened. The control strategy is characterized by strong robustness and the pulsation of a rmature current and electromagnetic torque within the permissible value.

关 键 词：变结构控制 BUCK变换器 降压调速 

分 类 号：TM301.2[电气工程—电机]