pid控制系統(tǒng)外文翻譯-在線瀏覽
2025-01-05 14:31本頁面
【正文】 a greater inertia of the object or delay. + ratio differential (PD) controller can improve the dynamic characteristics in the process of adjustment. 5, the parameter tuning PID controller Tuning PID control system design parameters of the core. It was based on PID control the process of determining the ratio coefficient, the size of the time differential and integral time. PID tuning parameters are many ways to sum up, there are two major categories : theoretical calculations tuning. It is mainly based on the mathematical model, the parameters of the controller Through theoretical calculations. This method has been used in the calculations may not be directly, it is also necessary to adjust and engineering. Second tuning method, which mainly rely on engineering experience, the control system directly for the test, and simple method easy to master, which are widely used in engineering practice. PID tuning parameters, the main critical ratio, response and attenuation curves. Three methods have their own characteristics, through their mon test Then in accordance with the empirical formula of the controller tuning parameters. But no matter what kind of methods used by the controller, it was necessary to make a final adjustment and improvement of the actual operation. Now is the critical proportion of the general law. PID controller using this method for setting the parameters of the following steps : (1) First, a preselection of the sampling period short enough to allow the system (2) adding proportional control only link until the step response of critical system for the importation of oscillation Then note the ratio magnification factor and critical oscillations (3) In a certain formula to be adopted under the control parameters of the PID controller PID parameter setting process is based on experience, and familiarity with the reference measurement tracking and setpoint curve. P\I\D thereby adjusting the size. 無錫職業(yè)技術學院 畢業(yè)設計說明書 (外文翻譯 ) 6 PID tuning parameters, all parameters of empirical data conditioning system following reference : Temperature Pressure P : P=30~70%, T=24~180s, Level L : P=20~80%. T=60~300s, Flow L : P=40~100% flow, T=6~60s. Now a PID controller for example, specify experience in the law setting steps ： (1)Let regulator parameters appropri S0=0 integral factor, the actual differential coefficient ≥ 0, closedloop control system is put into operation. S1 headed change the ratio coefficient, disturbance signals step change control process of observation, Until satisfactory control of the process so far. (2)S1 proportional to the current value multiplied by the coefficient of , an increase over the integral factor S0. Let disturbance signal changes for the same step up the process to achieve satisfactory control. (3) remain unchanged integral factor S0, S1 change the ratio coefficient observed any improvement in process control. If improvement is to continue to adjust until satisfied. Otherwise, th
公司管理相關推薦
鄂ICP備17016276號-1