Electrical equipment switching value record error correcting method
A technology of electrical equipment and error correction methods, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as difficult performance status
Active Publication Date: 2015-09-23
广东蓄能发电有限公司
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Problems solved by technology
It brings great difficulty for operators to quickly identify the performance status of equipment in each historical period
Method used
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[0061] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings and examples, but the implementation and protection of the present invention are not limited thereto. It should be pointed out that, if there are any processes in the following that are not specifically described in detail, those skilled in the art can realize or understand with reference to the prior art.
[0062] The following is an example analysis of the switch volume records of the ball valve oil pump in Guangzhou Energy Storage Hydropower Plant from 09:00 on April 28, 2014 to 22:30 on May 10, 2014. The ball valve oil pump starts when the oil pressure of the ball valve hydraulic system of the unit is lower than 55bar, and stops when the oil pressure is equal to 60bar.
[0063] combine figure 1 The process, the error correction method of the switching value record includes the following steps:
[0064] (1) From the historical time peri...
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The invention provides an electrical equipment switching value record error correcting method, which comprises the following concrete steps of: firstly deleting switching value records in an equipment overhaul period from the mass switching value records of operation equipment in a specified historical period; then deleting selected abnormal records from the switching value records in which the switching value records in the overhaul period has been deleted; next calculating the operation time and the starting interval time of the equipment; and finally comparing the item number ratio f of the abnormal records to the normal records with a threshold value delta <0> (if the f is greater than the threshold value delta <0>, the equipment is repaired and inspected; and if the f is not greater than the threshold value delta <0>, the equipment does not need to be repaired or inspected. The method provided by the invention can be used for separating out the switching value records caused by equipment overhaul, data transmission packet loss, abnormal action and wrong signal sending in the switching value records of the operation equipment in the specified historical period, and provides important technical support for obtaining the operation time and the starting interval time of the operation equipment, evaluating the operation state and analyzing the abnormal data.
Description
technical field [0001] The invention relates to the technical field of electrical equipment, in particular to a method for correcting errors recorded by switching values of electrical equipment. Background technique [0002] In order to grasp the operating status of the operating equipment in time, the present invention obtains the failure modes that cannot be identified by human sensory perception through data analysis of the switching values in the equipment event records, timely discovers potential safety hazards that affect the long-term stable operation of the equipment, and provides equipment condition maintenance. clue. [0003] However, the switching data of operating equipment is a massive amount of data. In the face of massive data, there is a lack of effective processing methods. At present, random point selection and equal sampling period point selection are mostly used to select the "representatives" of the data for analysis. In this way, the obtained anal...
Claims
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IPC IPC(8): G06F19/00
Inventor 张豪岑贞安郭裕达向鸣
Owner 广东蓄能发电有限公司