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A 750kv substation secondary equipment maintenance method based on monitoring data

A technology for secondary equipment and monitoring data, which is applied in the direction of electrical components, emergency protection circuit devices, switchgear, etc., can solve problems such as the inability to realize the life of secondary equipment, insufficient evaluation data of secondary equipment, waste of manpower and material resources, etc., and achieve improvement Insufficient evaluation data, improving the inaccurate evaluation model, and avoiding the effect of wasting manpower and material resources

Inactive Publication Date: 2017-12-12
国网甘肃省电力公司超高压公司 +1
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Problems solved by technology

[0005] The invention provides a monitoring data-based maintenance method for secondary equipment in 750kV substations, which is used to solve the lack of secondary equipment evaluation data in the prior art, the inability to realize real-time online prediction of the life of secondary equipment, and the existing regular maintenance. The problem of wasting a lot of manpower and material resources

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  • A 750kv substation secondary equipment maintenance method based on monitoring data
  • A 750kv substation secondary equipment maintenance method based on monitoring data
  • A 750kv substation secondary equipment maintenance method based on monitoring data

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Embodiment Construction

[0025] The present invention and its effects will be further described below in conjunction with the accompanying drawings.

[0026] refer to figure 1 , a 750kV substation secondary equipment maintenance method based on monitoring data, which includes the reliability evaluation method of the 750kV substation secondary equipment considering the hidden faults of the relay protection device, and formulating an adjustment maintenance method based on the secondary equipment life prediction model ;

[0027] The above 750kV substation secondary equipment reliability evaluation method, the steps are as follows:

[0028] Step 1: Collect and analyze the historical operation fault information of secondary equipment in substations (mainly relay protection devices) and online monitoring information (alarm, fault and abnormal information of self-inspection devices of relay protection devices), record fault events, and generate The failure event set G (time t and the corresponding number o...

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Abstract

The present invention discloses a 750kV substation secondary equipment maintenance method based on monitoring data in the field of 750kV substation secondary equipment state maintenance. The method comprises a step of using the monitoring data and historical operation data of substation secondary equipment to establish a substation secondary equipment average life prediction model based on two parameters Weibull, a step of making the substation secondary equipment adjustment type preventive maintenance method according to the operation state evaluation result of the secondary equipment combined with substation equipment scheduled inspection time, and the influence of the reduction of the secondary equipment reliability caused by substation equipment scheduled inspection is avoided. According to the method, the maintenance personnel can be assisted to adjust the maintenance strategy of secondary equipment, the waste of large number of manpower and material resources brought by regular preventive maintenance is avoided, and the safe and stable operation of the 750kV substation secondary equipment is ensured.

Description

technical field [0001] The invention belongs to the technical field of state maintenance of secondary equipment in electric power systems, and in particular relates to a monitoring data-based maintenance method for secondary equipment of a 750kV substation. technical background [0002] The Northwest 750kV interconnection project is an ultra-high voltage power transmission and transformation project with the largest project scale, the highest voltage level, the longest line and the most complex in the history of Northwest Power Grid development. The 750kV substation is the connection hub of the 750kV power grid, and its safe, continuous and stable operation directly affects the power supply quality of the entire 750kV power grid. [0003] The current method for life prediction of secondary equipment in substations only considers the family defects of the secondary equipment itself and related hardware factors, and cannot realize real-time online evaluation of secondary equip...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02B3/00H02H7/22
CPCH02B3/00H02H7/226
Inventor 任伟董海鹰黄巨朋姚军朱文才
Owner 国网甘肃省电力公司超高压公司
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