| 引用本文: | 刘益青,高伟聪,房同忠,滕兆宏.VxWorks在电力系统测控保护装置中应用[J].电力自动化设备,2009,(2): |
| .Application of VxWorks in measuring-control and protection devices[J].Electric Power Automation Equipment,2009,(2): |
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| 摘要: |
| 将VxWorks嵌入式实时多任务操作系统应用于电力系统测控保护一体化装置中,简要介绍了其特点,阐述了将其应用于测控保护装置的具体实施方案.将全部功能划分为优先级不同的CPU中断和VxWorks任务,对实时性要求较高的交流采样和GPS对时等功能采用中断实现,测控功能则利用任务实现.根据各个功能模块之间数据交换的内容及方式,设计了相互之间的协调工作机制,主要采用了信号量及邮箱的模式,从而使模块间的耦合性降低,达到了高效地使用各种软硬件资源的目的.根据VxWorks提供的通信模型和硬件平台开发了MUX层的驱动程序,使用标准Socket接口函数实现了基于TCP/IP协议栈的以太网通信功能.该设计方案已在新一代变电站自动化系统中成功应用,现场运行也验证了该方案的优越性. |
| 关键词: VxWorks操作系统 多任务 电力系统 测控 微机保护 |
| DOI： |
| 分类号:TM769 |
| 基金项目: |
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| Application of VxWorks in measuring-control and protection devices |
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LIU Yiqing~1 GAO Weicong~2 FANG Tongzhong~1 TENG Zhaohong~1
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| Abstract: |
| VxWorks,an embedded,real-time and multi-task operating system applied in the measuring-con- trol and protection devices of power system is introduced,and its features and implementation are discussed.All functions are divided into CPU interrupts and Vxworks tasks with different priorities.The AC sampling and GPS time synchronization are implemented by CPU interrupts,which have rigorous requirement for real-time performance,while the measuring-control functions by Vxworks tasks.The working mechanism to coord... |
| Key words: VxWorks OS multitask power system measuring and control microprocessor-based protection |
