燃料调节阀是精确控制燃气轮机燃料流量和机组负荷的基本组件。本文基于调节阀的位移-流量特性及其液压伺服机构组成，建立了燃料阀位置伺服系统的数学模型，分析了燃料阀组及其控制系统的动态响应特性，研究了进口压力对调节阀性能的影响，并提出了一种燃料进口压力修正补偿控制方法。仿真结果表明：经过压力修正后，系统响应频宽提高0.5 Hz，幅值裕量增大20°

Fuel regulating valve is the basic tool to accurately control the fuel flow rate and unit load of gas turbine. Based on the displacementflow characteristics of the regulating valve and its hydraulic servo mechanism, a mathematical model of the position servo system of the fuel valve was established, and the dynamic response characteristics of the fuel valve group and its control system were analyzed. The influence of inlet pressure on the regulation valve performance was studied, and a fuel inlet pressure correction compensation control method was proposed. The simulation results show that after pressure correction, the system responce bandwidth becomes 0.5 Hz wider, and the amplitude margin increases 20°.

TK474.7

国家重大科技专项（J2019V00140109）