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畢業(yè)設計---三相異步電動機的閉環(huán)恒速控制系統(tǒng)-畢業(yè)設計-展示頁

2025-01-31 04:54本頁面
  

【正文】 m called closedloop control system. This paper introduces the closedloop control system position, PLC system control procedures, the system of missioning etc. Based on feedback principle established automatic control system. Socalled feedback principle, is according to the system output variation of information to control, namely through systemic behavior (output) and expected behavior, and eliminate the deviation between the deviation to achieve the expected system performance. In the feedback control system, the existing by input to the output signal prior to access, also contains from the output terminal applied input signal feedback path, both form a closed loop. Therefore, feedback control system also called closedloop control system. Feedback control is automatically controlled main forms. Automatic control system are mostly feedback control system. In engineering often put in operation of make output and expectations to maintain consistent feedback control system known as automatic adjusting system, and had used to accurately follow or reiteration some process feedback control system known as servo system or servo system. [key words] closedloop control system, feedback, PLC II 目錄 緒論 ................................................................................................................................. 1 第一章 光電編碼器 ................................................................................................... 2 概述 ............................................................................................................. 2 編碼器的分類: ............................................................................................ 2 第二章 可編程序控制器( PLC) .............................................................................. 3 S7200PLC 簡介 ............................................................................................ 3 PLC的基本組成及工作原理 .......................................................................... 3 PLC的特點 ................................................................................................... 4 第三章 變頻器 .......................................................................................................... 5 變頻器概述 ................................................................................................... 5 變頻器調(diào)速原理 ........................................................................................... 5 變頻器的分類 ............................................................................................... 6 第四章 觸摸屏 .......................................................................................................... 7 觸摸屏的工作原理 ........................................................................................ 7 電機控制系統(tǒng)框圖 ........................................................................................ 7 第五章 控制方案及梯形圖 ........................................................................................ 8 變量與 PLC的地
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