电力作动系统容错电机拓扑结构与控制策略

Topologies and Control Schemes of Fault⁃Tolerant Machines for Electrical Actuator Systems

容错电机以其可靠性高、容错能力强以及恶劣环境工作能力强等优点得到了国内外电机领域广泛关注,其工作原理、拓扑结构、电磁性能和控制策略等已有广泛而深入的研究,研究结果表明该类电机非常适合应用于全电/多电飞机电力作动系统。本文从拓扑结构和控制算法两大方面对电力作动系统用容错电机的关键技术进行分析和总结。在拓扑结构方面,横向比较了每种原型电机引入容错设计后对原有电磁性能的影响,纵向归纳了电机容错设计的通用设计方法和一般规律。在控制策略方面,分析了基于电流矢量重构技术和基于电压矢量重构技术两大类方法的内在联系与优缺点,提出了提高转速动态的容错电机转矩冲量平衡控制,并对代表性拓扑结构和容错算法进行了仿真和实验比较。最后展望了容错电机的研究前景与应用拓展。

Fault-tolerant machines have attracted extensive attention in the field of machines all over the world for their high reliability,strong fault tolerance and strong ability for operation in harsh environments,therefore,deep researches are carried out focusing on their working principles,topologies,electromagnetic properties and control strategies.It can be found that this type of machine is very suitable for all-electric/moreelectric aircraft electrical actuator systems.This paper analyzes and summarizes the key technologies of faulttolerant machines for electrical actuator system from two aspects:Topology and control strategy.In terms of topology,the effects of each prototype machine on the original electromagnetic performance after introducing fault-tolerant design are compared,and the general design method and general law of fault-tolerant design of the machine are summarized.In terms of control strategy,the inside relations,advantages and disadvantages of two methods based on current vector reconstruction and voltage vector reconstruction are analyzed,furthermore,the torque impulse balance control of fault-tolerant machine for the speed performance improvement is investigated.The simulation and experimental verification are carried out for the classical topology and fault-tolerant algorithm.This paper summarizes the research prospect and application development of fault-tolerant machines,which offers references for the theoretical research and industrial application of fault-tolerant machines.