Water-turbine generator set speed regulator guide vane step test method

By automating the guide vane step test method for the speed governor of a hydro-turbine generator set, an automatic test process without manual operation is realized, which solves the problems of human resource consumption and data accuracy in the existing technology and improves the test efficiency and accuracy.

CN120739639APending Publication Date: 2025-10-03THREE GORGES JINSHAJIANG CHUANYUN HYDROPOWER DEV CO LTD
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Patent Information

Application Number
CN202511188845.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-25
Publication Date
2025-10-03

AI Technical Summary

Technical Problem

The existing method for testing the guide vane step of a turbine generator set governor requires manual operation, consumes a lot of human resources, and makes it difficult to ensure the accuracy of the test data, making it difficult to meet the needs of modern hydropower plants for efficient and precise testing.

Method used

An automated method is used to conduct guide vane step tests. The governor control system generates step signals, collects guide vane opening signals in real time, automatically saves and analyzes data, determines test results, and generates reports.

Benefits of technology

It realizes an automatic test process without manual operation, reduces time and labor costs, improves the accuracy and efficiency of test data, and meets the needs of modern hydropower plants.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a water-turbine generator set speed regulator guide vane step test method. The method comprises the steps of S1, a preparation stage; s2, initializing a speed regulator system of the water-turbine generator set; s3, step signal application and data acquisition: the system generates a corresponding guide vane step signal through an internal algorithm of a speed regulator control system according to step signal parameters preset by a program, and acquires an actual opening position signal of a guide vane in real time through a position sensor mounted on a guide vane servomotor; s4, data analysis and result judgment are conducted, collected data are preprocessed to obtain a guide vane opening change curve, and the change rate of the guide vane opening is calculated based on the corresponding curve; meanwhile, the overshoot of the guide vane opening degree, namely the maximum deviation value of the guide vane exceeding the target opening degree in the step response process, is calculated, and the time required for the guide vane opening degree to reach the stable state is calculated; comparing each performance index obtained by calculation with a preset qualified standard one by one to obtain a judgment result; and S5, generating a test report.
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