資源描述:
《020202008李建國》由會員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在教育資源-天天文庫。
1、內(nèi)蒙古工業(yè)大學(xué)本科畢業(yè)設(shè)計說明書學(xué)校代碼:10128學(xué)號:020202008本科畢業(yè)設(shè)計說明書(題目:變頻恒壓供水系統(tǒng)設(shè)計學(xué)生姓名:李建國學(xué)院:信息工程學(xué)院系別:自動化系專業(yè):自動化班級:自動化02-1班指導(dǎo)教師:云懷中講師二○○六年六月內(nèi)蒙古工業(yè)大學(xué)本科畢業(yè)設(shè)計說明書摘要本文中設(shè)計了一個變頻恒壓供水系統(tǒng),應(yīng)用于樓房的供水。是對變頻調(diào)速技術(shù)的一個良好應(yīng)用。是當(dāng)今最先進(jìn)、合理的節(jié)能型供水系統(tǒng)。從變頻器問世以來,變頻調(diào)速技術(shù)已在各個領(lǐng)域得到了廣泛的發(fā)展和利用。高層建筑給水也由原來采用樓頂水箱、水塔等供水方式,轉(zhuǎn)變?yōu)楣?jié)能、操作簡單、占地面積小的變頻恒壓供水方式。變頻恒壓供水調(diào)速系統(tǒng)實現(xiàn)了對電機(jī)的
2、無極調(diào)速,依據(jù)水壓的變化自動調(diào)節(jié)系統(tǒng)的運(yùn)行參數(shù),保持水壓恒定以滿足用水要求。本設(shè)計利用了變頻器的調(diào)速特性、參數(shù)簡單易懂,及對電機(jī)的控制具有靈活迅速等特點(diǎn),通過壓力信號反饋到變頻器,再經(jīng)過PID控制,從而達(dá)到控制電機(jī)轉(zhuǎn)速,以實現(xiàn)恒壓供水的目的。關(guān)鍵詞:變頻調(diào)速;PID控制;變頻器內(nèi)蒙古工業(yè)大學(xué)本科畢業(yè)設(shè)計說明書AbstractThispaperdesignsafrequencyconversionconstantpressurewatersystem.Itissuitabletobuildingofconstantpressurewatersystem,andabetterapplyingf
3、orfrequencyconversionspeed-regulationtechnology,fromthefirsttrasducertonow,frequencyconversionspeed-regulationtechnologyhasbeenmoreandmoreusedintheeverycornerofoursociety.High-buildingfeedwaterhasbeenconvertfromroofwatertanksuchmannertoenergy-saving,control-easilyandtakeupacreagesmallofconstantpre
4、ssurewaterfashion.Frequencyconversionconstantpressuregovernorrealizesmotorsteplessspeed-regulation,accordingtowateramounttochangeoperationparameters,keepingaconstantwaterpressuretosatisfywaterwhichisrequire.Thepaperhastherelativecircuitparagraph,controllingparagraphandelaboratedillustration.Thesys
5、temismadeupoffrequencyconverter,motor,thewaterpump,pressuresensors,liquidpositionsensor,water-tankandsoon.Withthecharacteroftransducercharacteristicsofthegovernor,easy-understandparameters,andquick-easilycontrollingmotor,frompressingsignaltotrasducer,withthehelpofPIDcontrol,soitcanrealizetocontrol
6、motorspeed,andconstantpressurewater.Keywords:FrequencyConversionSpeed-regulation;PIDControl;Trasducer內(nèi)蒙古工業(yè)大學(xué)本科畢業(yè)設(shè)計說明書目錄引言.................................................................1第一章變頻恒壓供水系統(tǒng)的概述..........................................31.1變頻恒壓供水系統(tǒng)...........................................
7、....31.2變頻恒壓供水系統(tǒng)的組成.........................................31.3變頻恒壓供水系統(tǒng)的工作原理.....................................31.4本章小結(jié).......................................................4第二章變頻器在恒壓供水系統(tǒng)中的應(yīng)用.................