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Working condition rotation control method for hydraulic control system of hydraulic turbine governor

A hydraulic control system and hydraulic system technology, applied in pump control, machine/engine, mechanical equipment, etc., to achieve the effect of improving system stability and reliability, strengthening control safety and stability, and avoiding logic disorder and out of control

Active Publication Date: 2021-06-11
CHINA YANGTZE POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method aims to solve the problem of smooth transition between the four major working conditions of the hydraulic control system of the turbine governor; to ensure that the hydraulic control system of the governor provides long-term stability and the indicators of pressure, temperature, pressure oil particle content and other aspects meet the standards The pressure oil source to operate the guide vane opening actuator

Method used

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  • Working condition rotation control method for hydraulic control system of hydraulic turbine governor
  • Working condition rotation control method for hydraulic control system of hydraulic turbine governor

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Embodiment

[0064] The method of the present invention is applied to the cycle control of the working condition of the hydraulic control system of the governor of a certain power station. The system is designed with 4 fixed-frequency motor oil pumps, the rated system pressure is 6.3Mpa, and the system shutdown maintenance pressure is 5.9Mpa. The method of the present invention will be described in detail below in conjunction with this embodiment.

[0065] By adopting the method of the present invention, the detailed steps of the working condition rotation control method of the hydro turbine governor hydraulic control system of a certain power station are as follows:

[0066] 1. Initialize the governor hydraulic control system controller and enter step 2.

[0067] 2. The hydraulic control system enters the shutdown standby state and enters step 3.

[0068] 3. The controller of the hydraulic control system of the governor detects whether it has received the command to start the hydraulic ...

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Abstract

The invention discloses a working condition rotation control method for a hydraulic control system of a water turbine governor. The method is an electrical control method for mutually switching four working conditions of a hydraulic maintenance system of the water turbine governor in turn, namely a shutdown standby state working condition, a startup process working condition, an operation state working condition and a shutdown process working condition. The method aims to solve the problems of stable transition among the four working conditions of the hydraulic maintenance system of the hydraulic turbine governor and the like, and ensures that the hydraulic maintenance system of the governor provides a long-acting and stable pressure oil source which reaches the standard in various indexes such as pressure, temperature and pressure oil particulate matter content to operate a guide vane opening executing mechanism.

Description

technical field [0001] The invention belongs to the technical field of a hydraulic control system for a governor of a hydraulic turbine generator set, and in particular relates to a method for controlling the cycle of working conditions of the hydraulic control system of a governor of a hydraulic turbine. Background technique [0002] The governor of the hydro-generator set adjusts the opening of the guide vane, the power and frequency of the unit, and the hydraulic control system of the governor needs to provide a long-term stable pressure oil source with all indicators such as pressure, temperature, and pressure oil particle content to meet the standards. Leaf opening actuator. In the prior art, the research on the hydraulic control system of the governor of the hydro-generator set mostly focuses on the structural design and control performance of the guide vane operation actuators such as electro-hydraulic conversion and hydraulic amplification. There are few researches ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03B15/12F04B49/06F04B49/02F04B49/00F04B49/10F04B49/22
CPCF03B15/12F04B49/065F04B49/02F04B49/022F04B49/007F04B49/10F04B49/22Y02E10/20
Inventor 涂勇
Owner CHINA YANGTZE POWER
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