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Method for intelligently evaluating running state of hydroelectric generating set

A hydroelectric unit and operating state technology, applied in the direction of instruments, data processing applications, calculations, etc., can solve the problems of heavy workload, poor effectiveness, and long test duration, and achieve the effect of strong practicability and safe operation

Active Publication Date: 2014-01-08
STATE GRID HUNAN ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, using the test method to divide the vibration area of ​​the hydroelectric unit, the test lasts a long time, the workload is too large, and the effectiveness is poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Obtain real-time data on the status of hydropower units. Using conventional methods, the real-time data of state parameters including vibration parameters, swing parameters, and water pressure fluctuation parameters of hydroelectric units to be evaluated, as well as real-time data including active parameters, reactive parameters, and water head parameters, are searched through the hydroelectric unit online monitoring system. Real-time data of background parameters;

[0024] (2) Set the intelligent evaluation basis and evaluation cycle. According to the national standard GB / T11348.5 or the national standard GB / T6075.5 or the national standard GB / T7894 or the national standard GB / T15468 or the national standard GB / T8564, using the conventional method, respectively set step (1) to be evaluated The minimum threshold values ​​of the vibration parameters, swing parameters, and water pressure fluctuation parameters of the hydroelectric unit are used as the basis for intel...

Embodiment 2

[0031] Steps (1) to (2) are the same as in Example 1;

[0032] (3) Evaluate the operation status area of ​​the hydroelectric unit. The vibration parameters, swing parameters, and water pressure fluctuation parameters of the hydroelectric unit to be evaluated obtained in step (1) correspond to the minimum threshold value and swing parameter of the vibration parameters of the hydroelectric unit to be evaluated set in step (2). The minimum threshold value of the water pressure pulsation parameter. The comparison results show that the vibration parameter is not greater than the minimum threshold value of the vibration parameter, the swing parameter is not greater than the minimum threshold value of the swing parameter, and the water pressure pulsation parameter is not greater than the water pressure pulsation parameter The minimum threshold value of the current hydropower unit to be evaluated is evaluated as the operable area under 45% load of the Francis turbine or 35% load of t...

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Abstract

The invention introduces a method for intelligently evaluating the running state of a hydroelectric generating set. The method comprises the following steps of: (1) acquiring state real-time data of the hydroelectric generating set; (2) setting intelligent evaluation bases and an evaluation period; (3) evaluating a running state region of the hydroelectric generating set; (4) establishing a running state region database of the hydroelectric generating set; (5) storing the running state region database of the hydroelectric generating set into a real-time running state region database of the hydroelectric generating set; (6) evaluating the running state of the hydroelectric generating set; and (7) releasing information. The method has the advantages that 1, the running state of the hydroelectric generating set can be mastered in real time so as to regulate the running mode and the overhaul plan; 2, the practicality is high and state evaluation can be implemented without additionally adding equipment and the running state region of the hydroelectric generating set is timely and accurately divided; 3, the method has the great guiding significance for ensuring safety operation of the hydroelectric generating set and avoiding an accident being expanded; and 4, the method also has the important significance for coordinated development of a source network.

Description

technical field [0001] The invention belongs to the technical field of hydroelectric power generation equipment, and in particular relates to an intelligent evaluation method for the operation state of a hydroelectric unit. Background technique [0002] Real-time grasp and accurate evaluation of the operating status of hydroelectric units is an effective means to ensure the safe operation of hydroelectric units. This is because the division of the operating area of ​​the hydroelectric unit is closely related to the operating head and working conditions. Under different water heads, the load range of the vibration zone is different. At present, the identification of the vibration area is usually determined by testing: before the test, a large number of sensors need to be temporarily arranged on the hydroelectric unit, and three to five water head sections are divided within the operating water head range, and ten to twenty tests are carried out within the operating load of t...

Claims

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Application Information

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IPC IPC(8): G06Q50/06
Inventor 王辉斌邹桂丽
Owner STATE GRID HUNAN ELECTRIC POWER
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