中子斩盘负载分析和运动控制器设计  

Analysis of load model and design of motion controller for neutron chopper disk

作　　者：庞蓓蓓[1,2] 王燕[1,2] 黄朝强[1,2] 李新喜[1,2] 

机构地区：[1]中国工程物理研究院核物理与化学研究所,四川绵阳621900 [2]中国工程物理研究院中子物理学重点实验室,四川绵阳621900

出　　处：《强激光与粒子束》2015年第6期304-308,共5页High Power Laser and Particle Beams

基　　金：国家自然科学基金重大科研仪器项目(11427810);中国工程物理研究院中子物理学重点实验室基金项目(2013BB04)

摘　　要：为了实现中子波段调节斩盘相位的高速、高精度控制,分析了系统的负载特性并建立了由斩盘实体和驱动电机构成的二质量系统模型。设计了电流、速度和位置串级控制器,根据控制系统的工程设计方法和现代控制理论给出了3个调节器结构选择及参数整定的具体方法。结果表明：在中子斩盘以旋转频率27.5Hz工作时,其相位控制扰动误差为-1.325 25~1.325 25μs,稳态误差为-2.583μs,符合中子斩波器应用要求。In order to realize high speed motion control with high precision, the load characteristics of the chopper disk were analyzed, and the mathematic model of the controlled object, which was a two-mass model composed of disk entity and drive mo- tor, was established. Based on this model, a current speed-position cascade controller was designed, and the select method of the adjusters＇ structure and parameters was given, based on the engineering design method and modern control theory. With a rota- tion frequency of 27.5 Hz, the position perturbation error ranged from --1. 325 25 μs to 1. 325 25μs, and the steady-state error was --2. 583μs, which met neutron chopper＇s application requirements.

关 键 词：中子斩波器 相位控制 运动控制器 二质量系统模型 波段偏移 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]