A method for preventing file system from being damaged when the relay protection device is powered off
A relay protection device and file system technology, applied in the direction of response error generation, electrical digital data processing, error detection of redundant data in calculations, etc., can solve the problem of unusable products, greatly increased file system costs, and stable The performance cannot be guaranteed in a short time, etc., to achieve the effect of software cost reduction
Active Publication Date: 2018-06-26
BEIJING SIFANG JIBAO AUTOMATION +1
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Problems solved by technology
[0005] 1. It is necessary to purchase a file system with log recording function, and it is necessary to modify the general file system interface of the existing relay protection device
[0006] 2. The cost of purchasing a file system with logging function will increase a lot
[0007] 3. After the replacement of the file system involves rewriting and debugging of the new chip driver and software, the software cost and time cost increase sharply
[0008] 4. If there is no file system function, the original product cannot be used, and many development software based on the file system have to be readjusted, and the stability cannot be guaranteed for a short time.
Method used
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[0029] The technical scheme of the present invention will be described in further detail below in conjunction with the accompanying drawings. For convenience, here we take the VXWORKS embedded operating system as an example (the LINUX embedded operating system is similar, and only need to transplant some system resources with differences). The network connection diagram of multiple relay protection devices in the substation is attached figure 2 shown.
[0030] The relay protection equipment is connected to the monitoring background, fault information sub-station, telecontrol master station and other equipment through Ethernet switches. The relay protection equipment in the substation uses the file system to store wave recording, fixed value and application program itself. This is convenient for data exchange when interconnecting with monitoring background, fault information sub-station, telecontrol master station and other equipment in the form of Ethernet network. Often, fi...
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The invention discloses a method for preventing damage of a file system during outage of a relay protection device. According to the method, a file system in a man-machine interface plugin of the relay protection device is divided into two units, where in one unit is used as a file system data unit which is used for storing redundant data and the other unit is used as a file system core unit which is used for recording logs; and the file system data unit adopts a redundant data storage manner through which the existing file system data is divided into two independent parts on a FLASH hardware chip to serve as two independent subareas, a mirror-image relationship is established between the two independent subareas and the two independent subareas serve as backups for each other. According to the method, the man-machine interface plugin of the relay protection device can be prevented from damaging the data of the file system due to the randomness during the outage, and can be prevented from being not started due to the incompleteness of the file system during the electrification.
Description
technical field [0001] The invention belongs to the field of power electronics and relay protection of power systems, and specifically relates to a method of using redundancy and mutual exclusion to prevent file system damage when a relay protection device is powered off, and is a safe relay protection device to prevent power failure when the file system is corrupted. Background technique [0002] During the engineering use of relay protection and other devices, the relay protection devices in the substation use the file system to store wave recording, fixed value and application program itself. This is convenient for data exchange when interconnecting with monitoring background, fault information sub-station, telecontrol master station and other equipment by means of Ethernet network. However, it often occurs that the data in the file system is lost, damaged or incomplete due to the operation of turning on and off the power of a certain electric device, making it impossibl...
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IPC IPC(8): G06F11/14
CPCG06F11/1435G06F11/1446
Inventor 肖鲲兰敏刚卢玉州袁海涛谢龙张明宇金中华
Owner BEIJING SIFANG JIBAO AUTOMATION