继电保护装置意外掉电的保护措施研究

继电保护装置在更新参数时需要保存文件,当在写文件过程中意外断电,会引起写参数文件错误,重新上电后参数文件错误可能导致设备死机等无法预料的后果。针对这一问题,提出了两种解决方案:备份文件方式和高可靠性文件系统。详细阐述了两者的实现方法,并对其效果和优劣做了对比。提出的两种方法可以在装置意外掉电时保证参数文件可用,从而避免设备死机,提高装置可靠性。

Discussion on Protective Measures for Accidental Power Failure of Relay Protection Devices

The relay protection device needs to save files in updating the parameters. If the system unexpectedly loses power or crashes during a write operation, fatal file errors may occur. These errors may cause unpredictable behaviors such as device crash after power-on. In response to this problem, two solutions, backup file and high reliability file system, are proposed. This paper elaborates on the implementation of the two methods, and compares their effects, advantages and disadvantages. The two methods proposed can ensure that the parameter file is available when the device unexpectedly loses power, thus, can avoid device crash and improve device reliability.