永磁无刷直流陀螺电机锁相稳速控制研究

doi:10.3969/j.issn.1674-1579.2015.03.011

摘要/Abstract

摘要： 为满足航天液浮陀螺用无位置传感器永磁无刷直流电机作为驱动电机的新需求，提出一种新的基于可编程逻辑器件和专用驱动芯片ML4411的永磁无刷直流陀螺电机稳速控制系统.采用芯片ML4411实现陀螺电机控制系统的反电势检测、换相和功率驱动，并使用复杂可编程逻辑器件作为控制处理器，实现电机的启动、转速给定.为保证系统稳定可靠，设计了两级锁相环路控制方案.该控制系统在陀螺电机调速控制试验中满足了陀螺的性能要求，为液浮陀螺性能的提高提供了一种有效手段.

关键词: 永磁无刷直流电机, 液浮陀螺, 锁相环, 稳速控制

Abstract: Considering the new requirements for sensorless permanent magnet brushless DC motor in a liquid floated gyro, a new phaselocked loop steadyspeed control system is presented based on complex programmable logic device (CPLD) and ML4411.The back electromotive force (backEMF) detection, commutation and power drive are realized by the chip ML4411. The zerospeed start control is realized by a CPLD chip, so does the generation of the speed reference. The control accuracy is greatly improved via the application of the twolevel phaselocked loop (PLL) technique. The requirements for the performance of the gyro are satisfied with the proposed control system in a motor speed test, which provides an effective method to improve the performance of the gyro.

Key words: liquid floated gyro； phaselocked loop, steadyspeed control

中图分类号:

TM301.2

朱梦如, 陈小娟, 马官营. 永磁无刷直流陀螺电机锁相稳速控制研究[J]. 空间控制技术与应用, 2015, 41(3): 53-57.

ZHU Meng-Ru, CHEN Xiao-Juan, MA Guan-Ying. PhaseLocked Loop SteadySpeed Control of Permanent Magnet Brushless DC Gyro Motor[J]. , 2015, 41(3): 53-57.

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