推力矢量控制电动伺服机构的双模控制研究  

Research on dual mode control for electric servo mechanism of thrust vector control

作　　者：崔业兵[1] 鞠玉涛[1] 郑健[1] 顾卫钢 

机构地区：[1]南京理工大学机械工程学院,南京210094 [2]南京傅立叶电子技术有限公司,南京210094

出　　处：《固体火箭技术》2012年第5期688-693,共6页Journal of Solid Rocket Technology

基　　金：南京理工大学自主科研专项计划项目(ZDJH02)

摘　　要：针对推力矢量控制电动伺服机构控制器的可靠性与冗余设计问题,提出了一种基于有无位置传感器的双模控制器方案,分析了双模控制器的原理与无位置传感器运行模式下的转子位置检测技术,利用电机的反电动势过零点获取电机转子位置信息的方法,设计了分压电路、带通滤波器、比较器构成的反电动势过零检测电路,通过电动伺服机构平台的试验验证,表明采用双模控制器的电动伺服机构能独立工作或自动平滑切换工作,克服了单一工作模式的不足之处,节约了冗余设计的空间与成本。According to the reliability and redundancy problem of thrust vector control（TVC） electric servo mechanism controlle,a dual mode control method of brushless DC motor（BLDCM） either with position sensor or without position sensor was presented.The principle of dual mode controller and the rotor position detection technology under sensorless mode were mainly analyzed,and the position information of motor rotor was captured through adopting the motor＇s Back-EMF crossing zero method,then a Back-EMF zero-cross detection circuit for BLDCM sensorless control was designed,which includes voltage division circuit,band-pass filter and comparing unit.Finally the electric servo mechanism platform with dual mode controller was tested and analyzed.Results indicate that the electric servo mechanism could work in each mode condition independently,and switch automatically and smoothly to sensorless mode.Thus it could overcome the deficiency of single controller working mode,also save the space and cost of redundancy design.

关 键 词：电动伺服机构 推力矢量控制 无刷直流电机 双模控制器 滤波器 

分 类 号：V435.23[航空宇航科学与技术—航空宇航推进理论与工程]