Hydro-turbo generator set vibration protection accomplishing method

Abstract

The invention provides a method for realizing the vibration protection for a hydroelectric generating set, which belongs to a realizing method for performing the vibration protection for the hydroelectric generating set under different operating conditions, aiming to solve the problem that the prior art can not study by self and regulate output to perform the vibration protection for different models under different working conditions. The method comprises the follow steps of: a. collecting, testing and sorting original data for the models of the hydroelectric generating sets and various operating conditions to construct an analytic system data model; b. analyzing and processing a data format represented as an index of set stability after collecting real-time data for the vibration of the hydroelectric generating set, and storing the data in a database at the same time; and c. extracting and analyzing the vibration data in the database to obtain the characteristics and the trend of the vibration of each working condition of the set, making corresponding early warning and corresponding protecting processes by combining current operating mode, current operating condition and the real-time data, and inputting the early warning and protecting processes into a computer supervisory control system to regulate the output of the set in real time, thereby avoiding a vibration area or machine halt, and reducing harm to the set.

Description

technical field [0001] The invention belongs to a method for realizing vibration protection under different operating conditions of a hydroelectric generating set. Background technique [0002] Vibration is the main fault that affects the normal operation of hydro-generator units and endangers the life of the unit. Timely fault diagnosis of vibration is conducive to improving the safety and economical operation level of hydro-generator units, increasing the operating hours of hydraulic units, and contributing to my country's hydropower generation. Bring huge economic benefits. [0003] Vibration is caused by various reasons, mainly from mechanical, hydraulic, electromagnetic force imbalance and so on. Its hazards are mainly manifested in the following aspects: [0004] 1. It causes the formation and expansion of the fatigue damage zone of the rotating unit and the fixed part of the equipment, so that the connection of related equipment is loosened and the axial displacement...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problem that the existing technology cannot carry out vibration protection for different models and different working conditions by self-learning and adjusting the output, and to provide a method for realizing the vibration protection of the hydro-generator set, which can be based on the hydro-generator set Real-time data to automatically analyze the vibration amplitude and adjust the output of the unit to avoid damage to the unit by vibration