Method and system for automatically evaluating stability performance of water-turbine generator set
A generator set and stable performance technology, which is applied in the field of automatic evaluation method and system for the stability performance of hydro-generator sets, can solve the problem that the equipment evaluation index is single, provided by personnel in different positions, and cannot reflect the change of equipment performance in time for the long-term health state of hydro-generator sets. Change trends and other issues to achieve the effect of ensuring safe and stable operation and ensuring accuracy
Pending Publication Date: 2022-04-29
HUANGHE WATER CONSERVANCY & HYDROPOWER DEV GENERAL
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Problems solved by technology
[0003] (1) It can only reflect the abnormal problems of local equipment, and the evaluation index is single, and cannot reflect the overall quantitative performance index of the hydroelectric generating set
[0004] (2) Only the alarm information is monitored, and the performance changes during normal operation of the equipment and the long-term change trend of the health status of the hydroelectric generator set cannot be reflected in time
[0005] (3) It is impossible to provide the most direct information for the personnel in different positions. The staff in different positions pay different attention to the operation status of the hydro-generator set. overall performance
Method used
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Embodiment 1
[0108] On November 6, 2021, the operating status data of a certain unit is shown in Table 1. According to the bottom data, the automatic evaluation system for the stability of the hydro-generator unit is imported into the computer, and the performance scoring results of each level of equipment are shown in Table 1. Shown:
[0109] Table 1 Unit operating status and performance scoring results
[0110]
[0111]
[0112]
[0113] Table 2 Model weight coefficient table
[0114]
[0115] When the performance score of a certain level of equipment is lower than 80 points, the score in the system will turn yellow, and when the score is lower than 60 points, the score will turn red, and relevant warning information will be pushed to system users. The water-tight performance of the main shaft seal is 79%, indicating that the water leakage of the main shaft seal is too large, and more attention should be paid. The performance of the water guide tile is 79%, indicating that ...
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The invention discloses an automatic evaluation method and system for the stability performance of a water-turbine generator set, and the method comprises the steps: layering the stability performance of the water-turbine generator set from top to bottom, obtaining corresponding indexes of the performance of each branch of a fourth layer, the mechanical performance of a stator core, the sealing waterstop performance of a main shaft and the hydraulic performance, and carrying out the layer-by-layer calculation from the lower layer to the upper layer from the fourth layer according to a weighted average model; and obtaining a stability performance evaluation index of the water-turbine generator set and an evaluation index of each layer of equipment, and realizing visual display of the performance indexes in the system. According to different water-turbine generator set equipment structures, measures can be applied according to local conditions in a classified mode, automatic evaluation of the stability performance of the water-turbine generator set is achieved, and a rich expert knowledge base is formed; the performance change of the equipment during normal operation and the long-term change trend of the health state of the water-turbine generator set can be reflected in time, and the accuracy of the evaluation result is ensured.
Description
technical field [0001] The invention relates to a water turbine generator set, in particular to a method and system for automatically evaluating the stability of a water turbine generator set. Background technique [0002] At present, the stability performance evaluation and abnormal monitoring of hydroelectric generating units mainly rely on the threshold alarm monitoring of online monitoring data. The operation and maintenance personnel analyze and evaluate the equipment operating status according to the alarm information of the online monitoring system. This evaluation method has the following limitations: [0003] (1) It can only reflect the abnormal problems of local equipment, and the evaluation index is single, and cannot reflect the overall quantitative performance index of the hydroelectric generating set. [0004] (2) Only the alarm information is monitored, which cannot reflect the performance changes of the equipment during normal operation and the long-term chan...
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Login to View More IPC IPC(8): G06Q10/06G06Q50/06G06N3/08
CPCG06Q10/06393G06Q50/06G06N3/084
Inventor 王忠强屈伟强张延智贾春雷柯明星詹奇峰
Owner HUANGHE WATER CONSERVANCY & HYDROPOWER DEV GENERAL