摘要
以驱动用燃气轮机为研究对象,考虑电液伺服机构中的非线性因素,从液压机械的基本原理出发建立了燃料控制系统模型,研究了燃料计量装置的动态特性以及电液伺服机构的死区继电特性对燃料控制系统的影响。结果表明:燃料控制系统的电液伺服机构可以快速精确地控制计量活门开度,等压差活门可以保证计量活门前后的压差维持在0.25 MPa左右;死区宽度对燃气轮机的动态特性有明显影响。
Taking the gas turbine for driving purpose as an object of study, a model was established for the fuel control system considering the nonlinear characteristics of the electro-hydraulic servo actuator based on the hydro-mechanical theory, so as to investigate the effects of the following factors on the performance of the fuel control system, such as the dynamic behaviors of the fuel metering unit, the dead zone relay characteristics of the servo actuator, etc. Results show that the electro-hydraulic servo actuator can control the opening of the metering valve fast and precisely, and the constant differential pressure valve can maintain the pressure difference at 0.25 MPa. The width of dead zone has a great effect on the dynamic performance of the gas turbine.
作者
肖旺
黄大文
刘功银
马永飞
张会生
XIAO Wang;HUANG Dawen;LIU Gongyin;MA Yongfei;ZHANG Huisheng(Petrochina West Pipeline Company,Urumqi 830000,China;Institute of Turbomachinery,Shanghai Jiao Tong University,Shanghai 200240,China)
出处
《动力工程学报》
CAS
CSCD
北大核心
2020年第4期290-296,共7页
Journal of Chinese Society of Power Engineering
基金
中石油自研资助项目(XG-JCGL-CX-KJXX-01-JL-03/201502)。
关键词
燃气轮机
燃料控制系统
电液伺服机构
死区继电
gas turbine
fuel control system
electro-hydraulic servo actuator
dead zone relay
