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Statistical method for vibration region crossing number and time of hydro-generator on daily basis

A technology for hydroelectric generators and vibration zones, applied in computing, data processing applications, resources, etc., can solve the problems of lack of statistics, lack of algorithms, etc., and achieve the effect of small transformation workload and simple and practical effects

Inactive Publication Date: 2016-08-10
CHINA SOUTHERN POWER GRID COMPANY
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AI Technical Summary

Problems solved by technology

[0005] 1. There is a lack of statistics at the whole network level, and the hydropower plant only makes statistics on the situation that the generator sets of the plant cross the vibration zone
[0006] 2. Lack of a complete algorithm to adapt to different units and multiple vibration zone parameters

Method used

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  • Statistical method for vibration region crossing number and time of hydro-generator on daily basis
  • Statistical method for vibration region crossing number and time of hydro-generator on daily basis
  • Statistical method for vibration region crossing number and time of hydro-generator on daily basis

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Embodiment

[0023] The flow chart of the inventive method is as figure 1 Shown, the method of counting hydroelectric generators of the present invention across the vibrating zone times and time by day,

[0024] 1. Read data

[0025] Call the platform interface of the energy management system (EMS) to read the data of the power system equipment model, which is generally obtained in the form of a list, including: plant station information table, generator set table, hydraulic turbine set vibration area configuration and other information.

[0026] The generator set table must be filtered out according to the type of hydroelectric unit, and information such as the name of the generator station, the unit name, and the unit Id (keyId) of the generator must be extracted. The unit Id (keyId) identifies the unique identity information of the unit and can be used for Extract historical data of second-level changes.

[0027] The configuration of the vibration zone of the hydraulic turbine unit is...

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Abstract

The invention provides a statistical method for the vibration region crossing number and the time of a hydro-generator on the daily basis. The method comprises the steps of 1) reading the configuration information and the second-level output historical data of a power grid model / unit vibration region through the real-time database platform interface of an energy management system; 2) according to the output historical data of the unit and the parameters of different vibration regions, analyzing the time, the direction and the duration of each vibration region crossing process; 3) conducting the statistics on the vibration region crossing number, the maximal vibration region time and the vibration region total time for each day; 4) calculating time periods based on the daily basis. According to the technical scheme of the invention, the statistics on the time, the direction and the duration of the vibration region crossing process of the hydro-generator all over the power grid can be realized, and the statistics on the vibration region crossing number, the maximal vibration region remaining time and the vibration region total time for each day is conducted. Based on the above algorithm, data are grouped on the unit basis, and are segmented and analyzed on the daily basis. Therefore, the processing requirements of the large data volume and the computational efficiency are fully considered. The method is simple and practical, and no dedicated collection device is required. Therefore, the method can be directly developed and applied to an EMS system.

Description

technical field [0001] The invention is a method for counting the frequency and time of a hydroelectric generator crossing a vibration zone on a daily basis, and belongs to the innovative technology of the method for counting the frequency and time of a hydroelectric generator crossing a vibration zone on a daily basis. Background technique [0002] Research on the vibration of hydropower units at home and abroad shows that the vibration source of many units comes from the turbine, which often limits its operating conditions due to the vibration of the turbine, thus affecting the reasonable performance of the unit in the system. Due to the long-term vibration of the unit, the material of the unit components is fatigued or even damaged, which seriously hinders the safe operation and power generation efficiency of the unit. Therefore, a lot of manpower and material resources have been invested in the vibration research of hydropower units in the hydropower industry at home and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06
CPCG06Q10/06
Inventor 梁寿愚方文崇何超林赵化时许丹莉吴金宇唐羿轩
Owner CHINA SOUTHERN POWER GRID COMPANY
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