基于DSC＋CPLD的双余度永磁无刷直流伺服系统  

Dual-Redundancy Permanent Magnetic Brushless DC Servo System based on DSC and CPLD

作　　者：周奇勋[1] 李声晋[1] 卢刚[1] 周勇[1] 

机构地区：[1]西北工业大学

出　　处：《电力电子技术》2008年第2期54-56,共3页Power Electronics

基　　金：十五航空支撑技术预研项目(418010501-3)~~

摘　　要：提出了基于数字信号控制器(Digital Signal Controller,简称DSC)和复杂可编程逻辑器件(Complex ProgrammableLogic Device,简称CPLD)构成的双余度永磁无刷直流电机(BLDCM),将其作为飞行器舵机作动系统的执行机构。通过对不同类型的余度运行模式与双余度电机结构特性的比较,确定了系统的设计方案。分析了以dsPIC30F5015为核心的控制电路、功率逆变电路、旋转变压器数字转换电路的工作原理,提出了双余度系统的控制策略。采用LabWindows/CVI构建余度管理与系统调试平台,对系统的性能进行了测试。实验结果表明,两余度可并行工作,系统最高响应频率为5Hz。The dual-redundancy permanent magnetic brushless DC motor （BLDCM） used as the actuation component in aircraft rudder servo system is introduced,which is based on digital signal controller （DSC） and complex programmable logic device（CPLD）.After analyzing different kind of redundancy running modes and structures of dual-redundancy motor, the system scheme is proposed.The dual-redundancy system hardware structure and three closed loop control strategy were designed.The principle of dsPIC30FS015 control circuit,power inverter circuit and resolver-to-digital circuit are introduced.The system preference was measured by debugging platform built by LabWindows/CVI.The experiment results show the servo system frequency response can achieve 5 Hz, which can satisfy the requirement of aircraft rudder actuator.

关 键 词：无刷电机 伺服系统/舵机作动器 数字信号控制器 双余度 

分 类 号：TM921.5[电气工程—电力电子与电力传动]