【正文】
20xx 年度本科生畢業(yè)論文(設(shè)計(jì)) 基于 PLC 的站用電源備自投裝置的設(shè)計(jì) 院 - 系: 工學(xué)院自動(dòng)化系 專 業(yè): 電氣工程及其自動(dòng)化 _ 年 級: _ 學(xué)生姓名: __ ___________ 學(xué) 號: ________ __ 導(dǎo)師及職稱 : _____ __ 20xx 年 5 月 20xxAnnual Graduation Thesis (Project) of the College Undergraduate Station based on PLC power supply design of automatic bus transfer equipment Department: College of Life Science and Technology Major: Electrical engineering and automation Grade: Student’s Name: Student No.: Tutor: May, 20xx 畢業(yè)論文(設(shè)計(jì))原創(chuàng)性聲明 本人所呈交的畢業(yè)論文(設(shè)計(jì)) 是我在導(dǎo)師的指導(dǎo)下進(jìn)行的研究工作及取得的研究成果。據(jù)我所知, 除文中已經(jīng)注明引用的內(nèi)容外,本論文(設(shè)計(jì))不包含其他個(gè)人已經(jīng)發(fā)表或撰寫過的研究成果。對本論文(設(shè)計(jì))的研究做出重要貢獻(xiàn)的個(gè)人和集體,均已在文中作了明確說明并表示謝意。 作者簽名: 日期: 畢業(yè)論文(設(shè)計(jì))授權(quán)使用說明 本論文(設(shè)計(jì))作者完全了解紅河學(xué)院有關(guān)保留、使用畢業(yè)論文(設(shè)計(jì))的規(guī)定,學(xué)校有權(quán)保留論文(設(shè)計(jì))并向相關(guān)部門送交論文(設(shè) 計(jì))的電子版和紙質(zhì)版。有權(quán)將論文(設(shè)計(jì))用于非贏利目的的少量復(fù)制并允許論文(設(shè)計(jì))進(jìn)入學(xué)校圖書館被查閱。學(xué)??梢怨颊撐模ㄔO(shè)計(jì))的全部或部分內(nèi)容。保密的論文(設(shè)計(jì))在解密后適用本規(guī)定。 作者簽名: 指導(dǎo)教師簽名: 日期: 日期: 畢業(yè)論文(設(shè)計(jì))答辯委員會(huì) (答辯小組 )成員名單 姓名 職稱 單位 備注 主席(組長) 紅河學(xué)院本科畢業(yè)論文 (設(shè)計(jì) ) 摘要 隨著國民經(jīng)濟(jì)的增長的需要,我國電網(wǎng)覆蓋面積日益擴(kuò)大,于此同時(shí),對供電系統(tǒng)的穩(wěn)定性要求也日益提高, 備自投作為 提高穩(wěn)定性 的自動(dòng)投入裝置 已成為研究的重要課題。 針對此類問題,本設(shè)計(jì)采用智能可編程控制器( PLC)來解決。該文以屏邊倮姑水電站為例進(jìn)行設(shè)計(jì),主要對此類小型電站的站用電源備自投的設(shè)計(jì)。該設(shè)計(jì)論述了課題研究的目的、意義即在設(shè)計(jì)過程中遇到的問題和解決方法與措施。該文詳細(xì)介紹了針對倮姑水電站站用電源備自投的總體實(shí)現(xiàn)方案設(shè)計(jì),重點(diǎn)是缺相檢測和運(yùn)用 PLC 解決交流繼電器的邏輯控制設(shè)計(jì) 。通過缺相檢測方案的設(shè)計(jì),解決了 PLC 輸入采樣問題,為 PLC 動(dòng)作提供邏輯輸入,根據(jù)繼電器控制要求設(shè)計(jì) PLC 的控制模塊。設(shè)計(jì)主要成果有三相電源缺相檢測回路及設(shè)備選取,控制模塊中有主電路圖設(shè)計(jì)、 I/O 分配表、 PLC 控制接線圖、梯形圖及程序及 PLC 的選型。本文設(shè)計(jì)備自投系統(tǒng)性能良好、實(shí)現(xiàn)自動(dòng)控制要求、動(dòng)作靈活、操作方便、故障率較低、維護(hù)簡單方便,實(shí)時(shí)解決了倮姑水電站站用電源備自投空缺問題,并滿足了控制穩(wěn)定性要求。 關(guān)鍵詞 :可編程控制器( PLC);備自投;自動(dòng)控制 紅河學(xué)院本科畢業(yè)論文 (設(shè)計(jì)) ABSTRACT Summary with the growth needs of the national economy,China39。s power grid covering an area of growing, at the same time, increasing demands on stability of power supply system, win equipment as inputs to improve the stability of automatic devices have bee an important research topic. For this type of problem, this design uses intelligent programmable controller (PLC) as a solution. The case study of pingbian County Kou hydropower station design, intended for such small power plants power automatic bus transfer station design. The design addresses the purpose, meaning that research problems and solutions encountered during the design process and measures. Which provides a detailed description of Kou hydropower station with power into the overall solution design, focusing on the missing phase detection and application of PLC address AC relay logic control design. Through the design of phase detection scheme, solve the PLC input sampling issues, provide logic for the PLC input, according to the blackwhite control design of PLC control module. Main results have a threephase power supply missing phase detection circuit design and equipment selection, design of main circuit diagram in the control module, I/O allocation table, PLC control wiring diagram, and PLC ladder diagram and procedure selection. This good performance, to achieve automatic control design of automatic bus transfer system requirements, flexibility, ease of operation, low failure rate, maintenance is simple and convenient,