Association analysis method for outlet pressure abnormity of high-pressure oil injection pump of pumped storage unit

A pumped-storage unit, outlet pressure technology, used in hydroelectric power generation, pump testing, mechanical equipment, etc.

Pending Publication Date: 2022-01-04
JIANGXI HONGPING PUMPED STORAGE +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a correlation analysis method for the abnormality of the outlet pressure of the high-pressure oil injection pump of the pumped storage unit, so as to solve the problem of consistency between the unit speed and the outlet pressure and flow of the high-pressure oil injection pump

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  • Association analysis method for outlet pressure abnormity of high-pressure oil injection pump of pumped storage unit
  • Association analysis method for outlet pressure abnormity of high-pressure oil injection pump of pumped storage unit
  • Association analysis method for outlet pressure abnormity of high-pressure oil injection pump of pumped storage unit

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Embodiment Construction

[0042] In order to clearly illustrate the technical characteristics of this solution, the exemplary embodiments of the present invention are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present invention to facilitate understanding, and they should be considered as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

[0043] Such as figure 1 As shown, a pumped-storage unit high-pressure oil injection pump outlet pressure abnormal correlation analysis method is characterized in that it includes the following steps:

[0044] Step 1. Gather the key state quantity information required for the abnormal cor...

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Abstract

The invention discloses an association analysis method for outlet pressure abnormity of a high-pressure oil injection pump of a pumped storage unit. The method comprises the following steps that firstly, collecting unit working condition parameters, vibration throw monitoring quantity, thrust bearing operation state quantity and high-pressure oil injection pump operation state quantity in the starting and stopping process of a pumped storage power station unit; establishing a data hierarchy event index, time-frequency association and time-space coupling data set logic architecture; on the basis, using a data mining method and according to a data set correlation analysis architecture, a mapping relation between abnormal pressure mutation of the high-pressure oil injection pump and working condition parameters, anyalzing and acquiring vibration data and the running state of a thrust bearing, so that the problem of consistency between the rotating speed of a unit and the outlet pressure and flow of the high-pressure oil injection pump is solved; theoretical support is provided for self-adaptive setting of parameters of the high-pressure oil injection pump matched with unit operation conditions.

Description

technical field [0001] The invention belongs to the technical field of data monitoring and state analysis of hydraulic generating sets, and in particular relates to a correlation analysis method for abnormal outlet pressure of a high-pressure oil injection pump of a pumped storage unit. Background technique [0002] Due to the characteristics of quick start, flexible adjustment and wide range of load changes, the pumped storage unit is responsible for the tasks of peak regulation, valley filling and phase regulation in the power grid. It is an important tool for power grid operation and scheduling. It is of great significance to improve the quality and economic benefits of thermal power, nuclear power, and wind power in the power grid. [0003] The thrust bearing is one of the most important components of the pumped storage unit. It bears axial loads such as the rotor mass of the generator set and the axial water thrust. Its working performance not only affects the output an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06F03B11/00F04B51/00
CPCG06Q10/06393G06Q50/06F03B11/008F04B51/00Y02E10/20Y04S10/50
Inventor 秦程王康生杨雄章志平张玉全胥千鑫张智王雪梅郑源
Owner JIANGXI HONGPING PUMPED STORAGE
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