An on-line monitoring data analysis and evaluation method of a hydroelectric unit
A technology for hydropower units and monitoring data, which is applied in data processing applications, instruments, information technology support systems, etc., and can solve hidden dangers in the safe operation of power plants, inability to accurately locate the fault location, fault cause and degree of failure, and remote monitoring technology for unit stability Imperfect and other problems, to achieve the effect of promoting optimized operation, optimized maintenance process, and easy analysis
Pending Publication Date: 2019-03-29
QINGHAI ELECTRIC POWER RES TECH
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Problems solved by technology
[0004] At present, hydropower plants have low levels of parameter synthesis and intelligent analysis that affect safety. Under the background that hydropower plants are increasingly moving towards "no one on duty, few people on duty", these problems will bring great hidden dangers to the safe operation of the power plant
In particular, remote monitoring technologies such as unit stability and adjustment system operating status are still not perfect, and remote real-time diagnosis and decision-making technologies and methods are lacking
[0005] At present, there are the following problems in the on-line monitoring device of the generator se
Method used
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Embodiment 1
[0107] refer to Figure 1 to Figure 9 As shown, a hydroelectric unit online monitoring data analysis and evaluation method includes the following steps:
[0108] S1, the establishment of the unit operation characteristic database;
[0109] The operating feature data of the unit includes but is not limited to the vibration, swing, pressure pulsation, stator-rotor air gap, and magnetic field strength of the hydroelectric unit detected by the sensor;
[0110] The data in the unit operation characteristic database includes abnormal characteristic data of vibration and swing, monthly trend data of vibration and swing, quarterly load data of vibration and swing, comparison data with the trend and abnormality of the previous quarter, annual load data of vibration and swing, and Annual trend and anomaly comparison data;
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The invention belongs to the technical field of hydroelectric power generation equipment, in particular to an on-line monitoring data analysis and evaluation method of a hydroelectric unit. The analysis and evaluation method comprises the following steps: S1, establishing a unit operation characteristic database; S2, establishing the unit state database; S3,performing characteristic parameter dataanalysis; S4, performing characteristic parameter evaluation and diagnosis; S5, performing Fault Matching and Troubleshooting Suggestions. The invention has the advantages of real-time grasping the health state of the unit, and providing powerful technical support for safe operation, optimized scheduling and maintenance guidance. It can also focus on analyzing and evaluating the monitoring information of each unit, and can carry out real-time physical examination on the units in operation state, which is easy to analyze and compare the operating characteristics and rules of different units, to promote the optimal operation of units in time, and to give full play to the role of analysis and diagnosis of experts in the field.
Description
technical field [0001] The invention belongs to the technical field of hydroelectric power generation equipment, and in particular relates to a method for analyzing and evaluating online monitoring data of a hydroelectric unit. Background technique [0002] With the increasing proportion of large-scale hydroelectric generating units in the entire power grid, the capacity of a single unit increases, the average annual power generation time is prolonged, and the maintenance time is shortened. The economic losses caused by accident shutdowns are extremely serious. Accurate analysis and evaluation of hydraulic turbine generator set failure is of great significance to the stable and reliable operation of the power system. [0003] A hydroelectric unit is a large rotating device that includes hydraulic, mechanical and electrical systems. The status analysis and evaluation of hydropower units includes data collection, data processing and analysis, processing opinions and decisions...
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CPCG06Q10/20G06Q50/06Y04S10/50
Inventor 王勇劲祁延寿郝卫新王志敏石径黄中华郭珊李连时张海春王鹏飞李娟莉郑勇陈青英程彦华韵鑫邓大勇李玉海钟应寿李英辉吕麟钟婉琦
Owner QINGHAI ELECTRIC POWER RES TECH
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