CAJ | 학술논문

工作在高温条件下的高温阀门，通过手动调节流量很难保证响应速度和调节精度，并且存在安全隐患，因而远程快速控制高温阀门的开度成为实际工程的需要。在设计开度控制系统时，把高温阀门的开度转换成位移。通过对电液伺服阀控液压缸系统的详细分析，建立了位移控制系统的数学模型；利用Simulink仿真软件对位移控制系统的闭环特性进行仿真，设计了闭环阀门开度控制器PID参数，并把PID参数应用到实际控制当中。实验结果表明：闭环伺服控制系统具有较好的响应速度、稳定性与精度；使受控的高温阀门最小开度达到2％；大开度变化时响应速度快，小开度变化时响应速度稍慢。实验与仿真结果虽存在偏差，但符合工程需求。
공작재고온조건하적고온벌문，통과수동조절류량흔난보증향응속도화조절정도，병차존재안전은환，인이원정쾌속공제고온벌문적개도성위실제공정적수요。재설계개도공제계통시，파고온벌문적개도전환성위이。통과대전액사복벌공액압항계통적상세분석，건립료위이공제계통적수학모형；이용Simulink방진연건대위이공제계통적폐배특성진행방진，설계료폐배벌문개도공제기PID삼수，병파PID삼수응용도실제공제당중。실험결과표명：폐배사복공제계통구유교호적향응속도、은정성여정도；사수공적고온벌문최소개도체도2％；대개도변화시향응속도쾌，소개도변화시향응속도초만。실험여방진결과수존재편차，단부합공정수구。
Manually adjusting the flow rate is difficult to ensure the accuracy and response speed when high temperature valve works at high temperature conditions,and there is also security risk. Therefore,the automatic control of high temperature valve opening becomes actual need of the project. In the design of the opening degree control system,opening degree was converted into displace-ment. A mathematical model of displacement control system was established after a detailed analysis of servo valve controlled hydraulic cylinder system and a closed-loop PID controller parameters of the valve opening were designed after simulating the closed loop charac-teristics of this servo system by using the simulation software Simulink. When the PID parameters are applied to the actual controlling, it is shown that the closed-loop servo control system has good response speed,stability and accuracy;the minimum controled valve o-pening degree reaches 2%. Its response is fast when the valve opening degree changes a lot and its response is slow when the valve o-pening degree changes a little. Although there is a deviation between experimental and simulation results,the results meet engineering requirements.