复杂电磁环境中高可靠性TMR-EHW电机控制电路设计  

Design of Motor Control Circuit Based on TMR-EHW in Complex Electromagnetic Environment

作　　者：褚杰[1] 满孟华[1] 常小龙[1] 原亮[2] 魏明[1] 

机构地区：[1]军械工程学院静电与电磁防护研究所,石家庄050003 [2]军械工程学院计算机工程系,石家庄050003

出　　处：《高电压技术》2012年第9期2314-2321,共8页High Voltage Engineering

基　　金：国家自然科学基金(60471022;51207167)~~

摘　　要：现代战场电磁环境日趋复杂、恶劣,导致大量电子装备受扰、损伤,其可靠性受到严重影响。为了进一步提高电子装备的可靠性,以无刷直流电机系统作为工程背景,将三模块冗余容错机制、多层前馈神经网络结构、演化硬件技术3者有机结合,实现了基于现场可编程门阵列(FPGA)的三模块冗余-演化硬件(TMR-EHW)无刷直流电机控制电路。通过实验证明:将TMR机制引入FPGA电机控制系统之中,可实现功能模块的故障自诊断,以容错运行方式保持系统正常输出,有效提高系统的可靠性;利用多层前馈神经网络结构组织FPGA中的电路资源,通过演化硬件技术实现故障后的功能自恢复。对TMR-EHW系统进行了可靠性分析,推导出该系统的可靠度计算公式。将TMR-EHW系统与单模块系统、普通TMR系统的可靠度进行了横向对比,结果表明TMR-EHW系统具有更高的可靠性和更强的适应性,证明了TMR-EHW技术的可行性与有效性。TMR-EHW电机控制电路系统能够适应并稳定工作于以较为复杂、多变的恶劣电磁环境。As a result of the more and more complex and atrocious, a great deal of electron-equipment＇s reliability was debased. So, brushless direct current motor （BLDC motor} system is chosen as the engineering background. The triple modular redundancy （TMR）, multi-layered feed-forward neural network and evolvable hardware （EHW） were combined together to implement a ＂TMR-EHW＂ BLDC motor control circuit system based on FPGA. In the experiment, the TMR mechanism was introduced into the system to carry out the self-diagnosis and quickly location of the fault modular. The reliability of the motor control circuit system was enhanced through the way of fault- tolerant. The resource in FPGA was organized in the way of multi-layered feed-forward neural network. The EHW technology was used to carry out serf-repairing. Reliability analysis of TMR-EHW system was carried out. The reliability formula of the TMR-EHW system was deducted. The reliability of TMR-EHW system was compared with single modular system and common TMR system. The result indicates that the TMR-EHW system is more reliable and adaptable. So, TMR-EHW technology is feasible and effective. The TMR-EHW motor control circuit system can adapt and work stably in the serious environment represented by complex and changeful electromagnetic environment.

关 键 词：三模块冗余(EMR) 演化硬件(EHW) 神经网络 容错电路 无刷直流电机 可靠性 

分 类 号：TM301.2[电气工程—电机]