CAJ | 학술논문

作为吸气式发动机燃油控制系统的被控对象，燃油调节器的动态特性对调节器自身的性能优化和控制系统设计均至关重要。基于燃油调节器的工作原理，采用集中参数法建立了燃油调节器的非线性模型，对其进行小偏差线性化得到其状态空间模型，计算获得其传递函数，并详细分析了燃油调节器的动态特性影响因素，为燃油调节器性能优化提供参考。通过模型降价简化传递函数模型获得其一阶模型，分析表明一阶模型和原模型的频域特性符合的很好，低阶模型能够表示燃油调节器的动态特性，为燃油控制系统设计和控制参数优化奠定了基础。
작위흡기식발동궤연유공제계통적피공대상，연유조절기적동태특성대조절기자신적성능우화화공제계통설계균지관중요。기우연유조절기적공작원리，채용집중삼수법건립료연유조절기적비선성모형，대기진행소편차선성화득도기상태공간모형，계산획득기전체함수，병상세분석료연유조절기적동태특성영향인소，위연유조절기성능우화제공삼고。통과모형강개간화전체함수모형획득기일계모형，분석표명일계모형화원모형적빈역특성부합적흔호，저계모형능구표시연유조절기적동태특성，위연유공제계통설계화공제삼수우화전정료기출。
Fuel regulator is one of the key components of fuel control system in airbreathing en- gine, and its dynamic characteristics are essential to performance optimization and controller. Based on the working principle of the regulator, the nonlinear dynamic model of the fuel regulator was es- tablished with the lumped method. Its state space model was gotten by carrying out small deviation linearization, and the transfer functions were obtained by calculation. The influence factors on the regulator performance were analyzed based on transfer functions, which were beneficial for its perfor- mance optimization. Furthermore, the transfer functions was simplified by model reduction. The re- sults reveal that the fi:equency response of the simplified model are consistent with those of the origi- nal model, so the simplified model can express the dynamic characteristics of the regulator. The re- search is fundamental to dynamic characteristics optimization and controller design.