基于變頻調(diào)速的水平連鑄機拉坯輥速度控制系統(tǒng)Frequency Inverter Based Drawing RollerS peedC ontrolSy stem ofHorizontal Continuous Casting MachineA 偉劉沖旅巴(南 華 大 學(xué)電氣工程學(xué)院，衡陽421001)摘要拉坯輥速度控制是水平連鑄工藝的關(guān)鍵技術(shù)之一，采用變頻器實現(xiàn)水平連鑄機拉坯輥速度程序控制，由信號發(fā)生裝置給變頻器提供程控信號?，F(xiàn)場應(yīng)用表明該控制系統(tǒng)速度響應(yīng)快，控制精度高，滿足了水平連鑄生產(chǎn)的需要。關(guān)鍵詞水平連鑄拉坯輥速度程序控制變頻器Absh'act Speedc ontorlof dr awingor leris on eo fth ek eyte chnologiesfo rho rizontalco ntinuousca stingm achine.Fo rth ispu rpose,fr equencyco nverterisad optedfo rdr awingor lersp eedp rogrammablec ontorlof ho rizontalco ntinuousca stingm achine,th ep rogrammableco ntorlsi gnalto fr equencyc onverteris provided場a signal generator. The results of application show that the response of system is rapid and the control accuracy is high enough to meet thedemand of production of horizontal continuous casting.Keywords Horizontalco ntinuousc asting Drawingor ler Speedp rogrammablec ontrol Ferquencyin verter 隨著 現(xiàn) 代 化工業(yè)生產(chǎn)對鋼材需求量的日益增加，連鑄生產(chǎn)能力已經(jīng)成為衡量一個國家冶金工業(yè)發(fā)展水平的重要指標(biāo)之一。近十幾年來，水平連鑄由于具有投資少、鑄坯直、見效快等多方面的優(yōu)點，國內(nèi)許多鋼鐵企業(yè)利用水平連鑄機來澆鑄特種合金鋼，發(fā)揮了其獨特的優(yōu)勢并取得了較好的經(jīng)濟效益〔1,2)0采用 水 平 連鑄機澆鑄特種合金鋼時，由于拉坯機是水平連鑄系統(tǒng)中的關(guān)鍵設(shè)備之一，拉坯機及其控制性能的好壞直接影響著連鑄坯的質(zhì)量，因此，連鑄的拉坯技術(shù)便成為整個水平連鑄技術(shù)的核心。由于鋼的冶煉過程是在高溫下進行的，鋼水溫度的變化又容易影響鑄坯的質(zhì)量和成材率，因此，如何能在高溫環(huán)境下控制好與鑄坯速度相關(guān)的參數(shù)(拉、推程量，中停時間和拉坯頻率等)對于確保連鑄作業(yè)的進一步高效化，延長系統(tǒng)的連續(xù)作業(yè)時間十分關(guān)鍵。因此，拉坯輥速度控制技術(shù)是連鑄生產(chǎn)過程控制領(lǐng)域中的關(guān)鍵技術(shù)之- [31
標(biāo)簽： 變頻調(diào)速 水平連鑄機 速度控制
上傳時間： 2013-10-12
上傳用戶：gxy670166755
The evergoing number of electrical & electronic products, as well as the widespread use of modern house appliances by every family
標(biāo)簽： electrical electronic widespread evergoing
上傳時間： 2014-01-10
上傳用戶：清風(fēng)冷雨
Copy gen_jmsn.dll to your Winamp Plugins Directory. JMSN Auto Nickname Changer plugins support only winamp 2.x version. [StartUp] In Tools -> Options.. -> Auto Nickname tabs, Configure your prefix and postfix besides your mp3 name And Press Start Button. so nickname changer listener will be started. [Configure] If I m listening Marilyn Manson - This Is The New Shit , Prefix : Jang-Ho Hwang listen Postfix: ~* When winamp song was changed, your nickname will be Jang-Ho Hwang listen Marylyn Manson - This Is The New Shit~* [Winamp plugin configure] In Winamp 2.x, Press Control+P (Preferences). You will find JMSN Nickname Changer Plug-In v0.7 in Plug-ins -> General purpose. Click Configure and set access password. it will keep your nickname. Enjoy it
標(biāo)簽： Directory gen_jmsn Nickname Changer
上傳時間： 2014-01-20
上傳用戶：zhuimenghuadie
A technical trading system comprises a set of trading rules that can be used to generate trading signals. In general, a simple trading system has one or two parameters that determine the timing of trading signals. Each rule contained in a trading system is the results of parameterizations. (Source: The Profitability of Technical Analysis: A Review by Cheol-Ho Park and Scott H. Irwin)
標(biāo)簽： trading technical comprises generate
上傳時間： 2013-12-25
上傳用戶：tianyi223
Realizing an MP3 player with the LPC2148, using libmad and EFSL This Application Note describes how to integrate the libmad MPEG 1/2 layer 3 library and the Embedded File System Library EFSL in a LPC2148 device to realize MP3 player. The Keil MCB2140 board is used to test the application and the Rowley CrossStudio for ARM has been chosen as a reference tool-chain.
標(biāo)簽： Application Realizing describes player
上傳時間： 2016-09-05
上傳用戶：moerwang
無線網(wǎng)狀網(wǎng)是一種高速率、高容量的多點對多點網(wǎng)絡(luò)，可把它看成是Ad Hoc網(wǎng)絡(luò)的簡化版本。正如Ad Ho。網(wǎng)絡(luò)一樣，無線網(wǎng)狀網(wǎng)中的路由是它的一項關(guān)鍵技術(shù)。基于此，本論文對無線網(wǎng)狀網(wǎng)的路由協(xié)議進行研究。 文中首先介紹了無線網(wǎng)狀網(wǎng)的結(jié)構(gòu)，特點以及其發(fā)展與現(xiàn)狀 其次，分析了Ad hoc網(wǎng)絡(luò)中各種路由協(xié)議的優(yōu)劣 再次，重點研究了其中的一種動態(tài)源路由協(xié)議(DSR)的具體實現(xiàn)過程 在DSR的基礎(chǔ)上，對其進行改進，提出了一種均衡流量動態(tài)源路由協(xié)議，對它進行性能分析和仿真。
標(biāo)簽： 多點 無線網(wǎng)狀網(wǎng) 高速率 高容
上傳時間： 2016-11-07
上傳用戶：waizhang
Using an easy-to-follow format, this book explains the basics of MATLAB up front. You ll find out how to plot functions, solve algebraic equations, and compute integrals. You ll also learn how to solve differential equations, generate numerical solutions of ODEs, and work with special functions. Packed with hundreds of sample equations and explained solutions, and featuring end-of-chapter quizzes and a final exam, this book will teach you MATLAB essentials in no time at all.
標(biāo)簽： easy-to-follow explains MATLAB basics
上傳時間： 2017-04-10
上傳用戶：時代電子小智
learningMatlab PhÇ n 1 c¬ së Mat lab Ch ¬ ng 1: Cµ i ® Æ t matlab 1.1.Cµ i ® Æ t ch ¬ ng tr×nh: Qui tr×nh cµ i ® Æ t Matlab còng t ¬ ng tù nh viÖ c cµ i ® Æ t c¸ c ch ¬ ng tr×nh phÇ n mÒ m kh¸ c, chØ cÇ n theo c¸ c h íng dÉ n vµ bæ xung thª m c¸ c th« ng sè cho phï hî p. 1.1.1 Khë i ® éng windows. 1.1.2 Do ch ¬ ng tr×nh ® î c cÊ u h×nh theo Autorun nª n khi g¾ n dÜ a CD vµ o æ ® Ü a th× ch ¬ ng tr×nh tù ho¹ t ® éng, cö a sæ
標(biāo)簽： learningMatlab 172 199 173
上傳時間： 2013-12-20
上傳用戶：lanwei
計算Tm，Ho共摻光纖激光器穩(wěn)態(tài)工作時，粒子數(shù)沿光纖長度方向上的分布情況以及輸出特性
標(biāo)簽： 計算
上傳時間： 2017-08-06
上傳用戶：二驅(qū)蚊器
分析了Tm，Ho共摻光纖激光器在達到穩(wěn)態(tài)之前的動態(tài)弛豫振蕩過程，形象描述了光纖激光器的動力學(xué)過程
標(biāo)簽： 分
上傳時間： 2013-12-08
上傳用戶：huql11633
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