【摘要】：針對某300 MW機組汽輪機主汽閥活動試驗負荷波動劇烈的問題,建立了主汽閥活動試驗時的汽輪機調(diào)節(jié)系統(tǒng)模型,該模型由包含主汽閥活動試驗邏輯的電液調(diào)節(jié)系統(tǒng)模型、調(diào)節(jié)汽閥模型和考慮調(diào)節(jié)汽閥流量特性的汽輪機模型組成。依據(jù)模型分析了主汽閥活動試驗時負荷劇烈波動的原因,指出引起負荷波動的主要原因是控制方式、DEH(Digital Electric Hydraulic Control System)設(shè)置、機組特性的不匹配,通過仿真試驗研究了解決該問題的控制優(yōu)化方法,基于此方法指導(dǎo)實際機組的主汽閥活動試驗。試驗結(jié)果表明,經(jīng)控制優(yōu)化后主汽閥活動試驗引起的負荷波動問題得到顯著改善。
[Abstract]:In order to solve the problem that the load of main steam valve active test of a 300-unit steam turbine fluctuates violently, a steam turbine regulation system model for main steam valve activity test is established. The model consists of an electro-hydraulic control system model which includes the main steam valve activity test logic. The model of regulating steam valve and steam turbine model considering regulating flow characteristics of steam valve are formed. According to the model, the paper analyzes the causes of the severe load fluctuation during the main steam valve activity test, and points out that the main causes of the load fluctuation are the setting of the control mode, DEH (Digital Electric Hydraulic Control System) and the mismatch of the unit characteristics. The control optimization method to solve this problem is studied by simulation test, and based on this method, the main steam valve activity test of practical units is guided. The test results show that the load fluctuation problem caused by the main steam valve activity test is improved significantly after the control optimization.
【作者單位】： 國網(wǎng)湖南省電力公司電力科學(xué)研究院;
【分類號】：TM621.3
，

本文編號：2307568