基于Linux实时扩展技术的故障录波器设计与实现  

Fault Recorder Based on Linux Real-time Expansion Technology

作　　者：何君 王亮[1] 祁忠[1] 翟桂峰 刘明慧[1] 

机构地区：[1]南京南瑞继保电气有限公司,江苏南京211102

出　　处：《工业控制计算机》2022年第7期127-129,132,共4页Industrial Control Computer

摘　　要：分析了现有故障录波器功能单元组成及其实现优缺点,提出了一种集故障录波和人机界面于一体的新型故障录波器设计方案。针对故障录波器的实时性要求,研究了Linux实时抢占补丁(RT-Preempt)技术,阐述了故障录波器内部实时进程和人机界面非实时进程共存情况下的进程管理策略。提出一种源端数据代理方法,通过引入数据代理服务层,屏蔽录波器嵌入式应用与内部人机界面之间以及与独立录波后台人机界面间的数据访问接口的差异,实现录波器人机界面软件的即插即用,降低了人机界面软件开发和维护周期。给出了新型故障录波器实现方案的硬件选型,介绍了系统架构和功能模块,对功能模块的软件实现做出了说明。测试结果表明,提出的新型故障录波器设计方案及数据代理方法满足录波器功能要求,降低了故障录波器软硬件成本,节省了屏柜空间,提升故障录波器适应场景的能力。This paper analyzes the the composition of the existing fault recorder functional unit and the advantages also the disadvantages of its implementation,proposes a new fault recorder design scheme by integrating fault recorder and HMI,also researches Linux real-time preemption patch(RT-Preempt)technology,the process management strategy under the coexistence of the real-time process and the non-real-time process inside the fault recorder is described.This paper proposes a source-side data proxy method,by introducing a data proxy service layer,shield the difference of the data access interface between the embedded application of the fault recorder and the UI,also between the UI of the independent fault recorder management machine,can realizing the plug-and-play of the UI software,reduces HMI software development and maintenance cycle time,and introduces the hardware of the new fault recorder implementation,the system architecture also functional modules,explains the software implementation of the functional modules.

关 键 词：故障录波器 LINUX 实时操作系统 RT-Preempt 人机界面 ZMQ 

分 类 号：TM63[电气工程—电力系统及自动化]