【作者】 杨永亮；

【导师】 马瑞卿；

【作者基本信息】 西北工业大学 ， 电机与电器， 2007， 硕士

【摘要】 论文来源于横向课题——双余度稀土永磁无刷直流电机伺服控制器的研究，主要针对航空用双余度无刷直流电机，就其伺服驱动控制技术、故障保护和容错技术进行研究。 论文首先介绍了双余度稀土永磁无刷直流电机的基本特点，针对某型双余度稀土永磁无刷直流电机，建立了电机本体及其伺服系统的数学模型，运用Matlab仿真技术，研究了双余度无刷直流电机电流、反电势、转速和转矩的实时变化规律，并对双余度无刷直流电机伺服控制系统进行了位置、速度、电流三闭环仿真。在理论分析的基础上，针对电力作动系统的技术指标要求，设计了基于DSP和CPLD的双余度无刷直流电机位置、速度和电流三闭环伺服系统的数字控制接口电路，并在软件方面对系统的闭环调节算法和双通道控制系统的余度管理策略进行了程序设计。 论文还对双余度无刷直流电机伺服系统的故障类型及其特点进行了分析，研究了系统的几种主要故障表现形式及其对电机性能的影响，提出了双余度无刷直流电动机的故障检测与保护方法。介绍了余度系统的余度概念、余度选择、余度配置及其设计问题，研究了双余度无刷直流电机控制系统的故障保护、余度切换和系统重构等余度管理问题，并针对由于系统参数分散性带来的出力不均衡问题，提出了双余度无刷直流电机的余度电流均衡方法。 论文最后完成了工程样机的研制与实验验证，并对实验结果与仿真结果进行了对比分析，所研究的成果对后续的研究具有重要的参考价值。更多还原

【Abstract】 This dissertation is based on the project —the research of servo controller for dual redundancy rear earth permanent brushless DC motor (BLDCM).The main focus is to develop the technology about servo control and fault-tolerant for dual redundancy BLDCM used in the aviation realm.Beginning with the dundamental properties of dual redundancy BLDCM, the mathematic model of dual redundancy BLDCM and servo system is established. It studies the rules of current、back electromotive force、speed and torque of dual redundancy BLDCM and simulates the servo system of dual redundancy BLDCM with triple-loops which includes position loop, speed loop and current loop in Matlab. Base on theoretical research, the triple-loops servo control circuit with DSP and CPLD of dual redundancy BLDCM is designed for electric actuation system, then the algorithm routine and strategy of redundancy management are proposed.After classifying different fault-types of servo system, this dissertation analyzes the performance of motor influenced by some main fault and presents the methods for motor fault detection and protection. Then, the concept、 selection、 configuration and design of redundancy system are introduced and the redundancy management techniques such as fault protection, redundancy switch, and system rebuilt are discussed. At last , a current equalization method for dual-redundancy BLDCM is proposed for the problem of torque distributing disequilibrium by the influence of discrepancies in system parametersFinally, a prototype instrument is developed, the experimental work and the experimental results are accomplished. The achievements of the research have very important reference for continual research.更多还原