pid控制系統(tǒng)外文翻譯-文庫吧資料
2024-11-10 14:31本頁面
【正文】 ic washing machines. Control systems can be divided into open loop control system and closedloop control system. Control system includes a controller, sensor, transmitter, the executing agency, I accept input and output. After the output controller output interface enforcement agency charged with a war system。 Charged with volume control system, through sensors. Transmitter by input interface to the controller. Different control systems, sensor, transmitter, and the executing agency is not the same. For example, pressure control system using pressure sensors. Heating the sensor is a temperature sensor control system. At present, or PID control and intelligent controller PID controller (meters) have many, engineering products have been widely used in a wide variety of PID controller products. major panies have developed an intelligent selftuning PID regulator (intelligent Amp232。s Logix product lines. ControlNet it can be linked directly with the use of the work to achieve its remote control function. 1, The openloop control systems Openloop control system is the object of the output ( control volume) of the controller (controller), the output will not be affected. In this control system, not dependent on the volume will be charged and sent back to form against any closedloop. 無錫職業(yè)技術(shù)學院 畢業(yè)設(shè)計說明書 (外文翻譯 ) 3 2,The closedloop control system Closedloop control system (loop control system) features of the accused The output (volume control) and the output affected by anti sent back to form a loop or more. And the positive feedback loop feedback control system, if the feedback signal and the signal systems to setting the contrary, call negative feedback (Negative Feedback), and if the same polarity, as positive feedback, closedloop control system is used generally negative feedback, or negative feedback control system. Many examples of closedloop control system. For example, people in a negative feedback loop control systems, sensor is the eyes, as feedback keep the human system through various amendments to finally make the right moves. If there are no eyes, no feedback loop, it became an openloop control system. Another, when a real clothing consecutive automatic washing machine will have to wash it. Wash and can automatically after 7659, it is a closed loop control system. 3, step response Step response is a step input added to the system, the system output. Responded to enter the steadystate error is steady, the difference between the desired output and actual output. Can be used to control the performance of the system stability, prospective, quick word to describe. System stability is the stability, a system to work normally must first be stable, Step response is from the point of view of convergence。 Express refers to the control of the rapid response system, Usually time to quantify the increase. 4, PID control elements and features In practical projects, the most widespread application of the law to the regulator to control the ratio, int
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