ï»?!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 烟台控制æŸ?合信PLC,合信伺服,合信自动åŒ?/title> <meta name="keywords" content="烟台控制æŸ?合信PLC,合信伺服,合信自动åŒ? /> <meta http-equiv="Content-Type" content="text/html; charset=gbk" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <meta name="description" content="About us page - download free business website template at TemplateMonster.com."/> <link href="style.css" rel="stylesheet" type="text/css" /> <link href="layout.css" rel="stylesheet" type="text/css" /> <script src="maxheight.js" type="text/javascript"></script> <!--[if lt IE 7]> <link href="ie_style.css" rel="stylesheet" type="text/css" /> <![endif]--> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> </head> <body id="page2" onload="new ElementMaxHeight();"> <div style="position:fixed;left:-9000px;top:-9000px;"><sup id="ui0sy"></sup><xmp id="ui0sy"></xmp><tt 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<li><a href="contact-us.html" class="last"><em><b>联系我们</b></em></a></li> </ul> </div> </div> </div> <!-- nav box end --> </div> </div> </div> <!-- content --> <div id="content"> <div class="container"> <!-- main-banner-small begin --> <div class="main-banner-small"> <div class="inner"> <h1>专业PLC触摸屏编½E?</h1> </div> </div> <!-- main-banner-small end --> <div class="section"> <!-- box begin --> <div class="box"> <div class="border-top"> <div class="border-right"> <div class="border-bot"> <div class="border-left"> <div class="left-top-corner"> <div class="right-top-corner"> <div class="right-bot-corner"> <div class="left-bot-corner"> <div class="inner"> <h2>公司½Ž€ä»?/h2> 烟台瀚青甉|°”自动化有限公司是一家专注于工业自动化高¿U‘技控制¾pȝ»Ÿçš„设计、安装、调试及工业自动化äñ”品的生äñ”、代理、销售、传动电气äñ”品维修的高科技公司。公åæ€»¥ä¸“业的技术团队äؓ基础åQŒç»“合在工业自动化领域的深厚¿U¯ç¯åQŒä»¥å¿«é€Ÿå®žçŽ°å®¢æˆ·å®šåˆ¶åŒ–解决æ–ÒŽ¡ˆä¸ºç›®æ ‡ï¼Œå®žçŽ°ä¼ä¸šä»·å€¹{€å‘˜å·¥ä­hå€ég¸Žå®¢æˆ·ä»·å€¼çš„共同成长ã€? </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> <!-- box end --> </div> <div class="section"> <!-- box begin --> <div class="box"> <div class="border-top"> <div class="border-right"> <div class="border-bot"> <div class="border-left"> <div class="left-top-corner"> <div class="right-top-corner"> <div class="right-bot-corner"> <div class="left-bot-corner"> <div class="inner"> <h2><a href="PLCanli.html"><em><b>PLC案例</b></em></a></h2> <h2><a href="partners.html"><em><b>变频器案åˆ?/b></em></a></h2> <DIV id=left> <H3 class=title><SPAN> 普传PI7800¾pÕdˆ—变频器应用于铔R’¢è®‘Ö¤‡</SPAN></H3> <DIV class=webcontent> <DIV id=showproduct> <H1 align="center" class=title>普传PI7800¾pÕdˆ—变频器应用于铔R’¢è®‘Ö¤‡</H1> <DIV style="CLEAR: both"></DIV> <P><span style="white-space:nowrap;">前言</span><br /> <p> <span style="white-space:nowrap;">钢铁工业耗电量极大,中国电工产品耗电¾U¦å å…¨å›½æ€Õd‘电量çš?0%åQŒè€Œå†¶é‡‘ç³»¾lŸå¹´è€—电é‡?/span><span style="white-space:nowrap;">¾U¦å å…¨å›½å‘电量的9.3%左右åQŒé©±åŠ¨çš„ç”?/span><span style="white-space:nowrap;">动机</span> </p> <p> <span style="white-space:nowrap;">占很大一部分åQŒå…¶ä¸­è¦æ±‚调速的å?0%以上åQˆæ®</span><span style="white-space:nowrap;">¾lŸè®¡åQŒé’¢é“å·¥ä¸šè¦æ±‚调速的电动æœÞZ»Žæ•°é‡ä¸Šè¯´¾U¦äؓ20%åQŒè€Œå®¹é‡ä¸Šè¯´å´å?0%åQ‰ï¼Œæ•?/span> </p> <p> <span style="white-space:nowrap;">其有效操</span><span style="white-space:nowrap;">作和节能降耗是臛_…³é‡è¦çš„ã€?/span> </p> <p> <span style="white-space:nowrap;">钢铁工业产量大、经‹¹Žæ•ˆç›Šå¤§åQŒè¦æ±‚作业率高。如板带热连轧厂òq´äñ”量大都超˜q?600 ä¸?/span><span style="white-space:nowrap;">吨,½Eæœ‰æ•…障停èžRåQŒæŸå¤±å°±å¾ˆå¤§åQŒæ•…提高作业</span> </p> <p> <span style="white-space:nowrap;">率极为重要。钢铁企业ä‹É用的电动机有直流ç”?/span><span style="white-space:nowrap;">动机和交‹¹ç”µåŠ¨æœºåQŒç”±äºŽè®¸å¤šè¦æ±‚调速的生äñ”机械对电气控制系¾lŸæœ‰ä¸€å®šçš„要求åQŒå¦‚è°?/span> </p> <p> <span style="white-space:nowrap;">速范</span><span style="white-space:nowrap;">围、动态响应、静差度½{‰ï¼Œ˜q‡åŽ»ç›´æµç”µåŠ¨æœÞZ¸€ç›´å ä¸Õd¯¼åœîC½åQŒä½†ç›´æµç”µåŠ¨æœºæœ‰ä¸€¾pÕdˆ—¾~ºç‚¹åQ?/span><span style="white-space:nowrap;">如结构上有换向器及电刷ä‹É日常¾l´æŠ¤</span> </p> <p> <span style="white-space:nowrap;">量增加、电刷与整流子经å¸æ€ñ”生火èŠÞp€Œè¦æ±‚安装环境较</span><span style="white-space:nowrap;">好及不能用于易燃易爆场所、与同容量交‹¹ç”µåŠ¨æœºæ¯”体¿U¯å’Œé‡é‡åŠè{动惯量都</span> </p> <p> <span style="white-space:nowrap;">较大、ä­hæ ég¹Ÿ</span><span style="white-space:nowrap;">较高、效率比交流电动æœÞZ½Ž2 è‡?%½{‰ï¼Œäº¤æµç”µåŠ¨æœºåˆ™æ— ç›´‹¹ç”µåŠ¨æœºçš„缺点,¾l´æŠ¤é‡è¾ƒž®‘,ä½?/span><span style="white-space:nowrap;">业率较高。特别是˜q‘十多年</span> </p> <p> <span style="white-space:nowrap;">随着电力电子和微电子技术发展及çŽîC»£æŽ§åˆ¶ç†è®ºåº”用åQŒä‹É交流è°?/span><span style="white-space:nowrap;">速迅速发展,其调速特性与直流调速性能完全一æ ïL”šè‡Œ™¶…˜q‡ï¼Œå®Œå…¨å?/span> </p> <p> <span style="white-space:nowrap;">代替直流电动机及其调</span><span style="white-space:nowrap;">速系¾lŸã€?/span> </p> <span style="white-space:nowrap;">一、传¾lŸçš„调速方式及分析</span><br /> <p> <span style="white-space:nowrap;">交流调速有多种æ–ÒŽ³•åQˆå¼‚步电动机的变极调速、调压调速、è{子串电阻调速、电¼‚è{å·?/span><span style="white-space:nowrap;">¼›Õdˆå™¨è°ƒé€Ÿï¼Œæ¶²åŠ›è€¦åˆå™¨è°ƒé€Ÿã€æœºæ¢°å·®åŠ¨è°ƒé€Ÿã€?/span> </p> <p> <span style="white-space:nowrap;">变频调速等åQ‰ï¼Œä½†ä¸»‹¹æ˜¯å˜é¢‘调速。变频调é€?/span><span style="white-space:nowrap;">的变频电源有旋è{变频机组和静止变频装¾|®ã€‚前者由异步或同步电动机—直‹¹å‘甉|œºå’?/span> </p> <p> <span style="white-space:nowrap;">直流</span><span style="white-space:nowrap;">电动机—同步发甉|œºä¸¤å¥—机组¾l„成。后者则ç”Þq”µåŠ›ç”µå­å™¨ä»¶å’Œå¾®ç”µå­å™¨ä»¶ç»„成,无可动部分ã€?/span> </p> <p> <span style="white-space:nowrap;">ç”׃ºŽæ—‹è{变频机组讑֤‡åºžå¤§ã€æœ‰å¯åŠ¨éƒ¨åˆ†ã€ç»´æŠ¤é‡å¤§ã€æ•ˆçŽ‡ä½Žå’Œæ€§èƒ½å·®ï¼Œæ•…已被静止变频装</span><span style="white-space:nowrap;">¾|®ä»£æ›Ñ€‚现在所指的变频调速是指静止变</span> </p> <p> <span style="white-space:nowrap;">频调速装¾|®ï¼ˆå˜é¢‘器)。据¾lŸè®¡ä½¿ç”¨é™æ­¢å˜é¢‘调速以</span><span style="white-space:nowrap;">后,可节ç”? è‡?%。因此交‹¹ç”µåŠ¨æœºé©±åŠ¨å’Œå˜é¢‘调速在钢铁厂已òq¿æ³›åº”用åQŒç‰¹åˆ?/span> </p> <p> <span style="white-space:nowrap;">是新建的æœ?/span><span style="white-space:nowrap;">¾l„,甚至大功率(单机è¾?0,000 千瓦åQ‰ã€è¦æ±‚严格的带钢热连轧机也ä‹É用交‹¹ç”µåŠ¨æœºé©±åŠ¨å’?/span><span style="white-space:nowrap;">交流调速。变频调速经‹¹Žæ•ˆç›?/span> </p> <p> <span style="white-space:nowrap;">高ã€?/span> </p> <span style="white-space:nowrap;">二、变频器在铸钢设备的应用</span><br /> <p> <span style="white-space:nowrap;">目的åQŒä‹É工艺要求严格、技术复杂、äñ”量大的热轧板带蝾机工厂实现全交流化变频调速ã€?/span><span style="white-space:nowrap;">事实上钢铁工业全交流化调控早ž®±å¼€å§‹å°è¯•ï¼Œ</span> </p> <p> <span style="white-space:nowrap;">å†äh¿å¸¦è¿žè½§æœºã€ä¸­åŽšæ¿è½§æœºã€çº¿‹‚’蝾机、型é’?/span><span style="white-space:nowrap;">轧机、钢½Ž¡è¾æœºåŒ…括主、辅传动½{‰ï¼Œå¾ˆå¤šçŽ¯èŠ‚都相¾l§ä‹É用过交流变频调速ã€?/span> </p> <p> <span style="white-space:nowrap;">本次着重介¾lçš„是普传变频器应用于钢条传送系¾lŸâ€”—电机带动传送轮夹住钢条完成å?/span><span style="white-space:nowrap;">™å¹å·¥åºï¼Œè¯¥è´Ÿè½½å±žäºŽè¾ƒé‡åž‹è´Ÿè²ã€?/span> </p> <p> <span style="white-space:nowrap;"><img src="images/20130802105417_60626.jpg" alt="" /><br /> </span> </p> <p> <span style="white-space:nowrap;"><span style="white-space:nowrap;">现场对变频器的性能的要求:</span><br /> <span style="white-space:nowrap;">åQ?åQ‰åœ¨ä½Žé¢‘时有较大转矩</span><br /> <span style="white-space:nowrap;">åQ?åQ‰èƒ½æŠ—击大电‹¹å†²å‡?/span><br /> <span style="white-space:nowrap;">åQ?åQ‰å¤–接电位器控制</span><br /> <span style="white-space:nowrap;">甉|œºä¼ é€é’¢æ¡è¿‡½E‹ä¸­åQŒçŽ°åœºæœºæ¢°éƒ¨åˆ†æ¶¦æ»‘性不是很好,要求在负载突然加大的情况下避</span><span style="white-space:nowrap;">免过‹¹æŠ¥è­¦ï¼Œä¹Ÿä¸èƒ½å‡ºçŽ°ç”µæœø™¿è½¬å˜æ…¢ï¼Œæ‰€</span></span> </p> <p> <span style="white-space:nowrap;"><span style="white-space:nowrap;">以要</span></span><span style="white-space:nowrap;">¾l¼åˆè°ƒæ•´å‚æ•°ã€?/span> </p> <p> <span style="white-space:nowrap;"><img src="images/20130802105511_49668.jpg" alt="" /> <img src="images/20130802105531_85357.jpg" alt="" /><br /> </span> </p> <p> <span style="white-space:nowrap;"><br /> <span style="white-space:nowrap;">现场应用 PI7800 250G3 250KW两台åQ?PI7800 160G3 160KW一収ͼŒå…?台变频器ã€?/span><br /> <span style="white-space:nowrap;">¼„°åˆ°çš„几个问题:</span><br /> <span style="white-space:nowrap;">1、客户äؓ了提高电机的转矩åQŒå¸¸æŠŠå˜é¢‘器的è{矩提升参敎ͼˆæˆ–最低输出电压)调到å¾?/span><span style="white-space:nowrap;">高!˜q™æ ·å˜é¢‘器的启动甉|µä¼šå¾ˆå¤§ï¼Œ¾lå¸¸</span></span> </p> <p> <span style="white-space:nowrap;"><span style="white-space:nowrap;">跳“过‹¹â€ï¼Œ</span></span><span style="white-space:nowrap;">也容易损坏模块!转矩提升应适当åQ?/span><span style="white-space:nowrap;">可慢慢调上去òq¶è§‚察电‹¹å¤§ž®ã€?/span> </p> <p> <span style="white-space:nowrap;"> <span style="white-space:nowrap;">2、也不能调低基本频率åQŒå›½å†…电æœø™®¾è®¡åŸºæœ¬é¢‘率是50HZåQŒå½“变频器的基本频率调小后,</span><span style="white-space:nowrap;">虽然可提高è{矩,但电‹¹æ€¥å‡åQŒå¯¹å?/span></span> </p> <p> <span style="white-space:nowrap;"><span style="white-space:nowrap;">频器及电</span></span><span style="white-space:nowrap;">机都会造成伤害åQï¼</span> </p> <p> <span style="white-space:nowrap;"> <span style="white-space:nowrap;">因此åQŒäؓ避免报警åQŒä¸€èˆ¬ä¸»è°ƒåŠ é€Ÿæ—¶é—ß_¼Œè½¬çŸ©æå‡å’ŒåŸºæœ¬é¢‘率适当调整ä¸ø™¾…ã€?/span><br /> <img src="images/20130802105610_94382.jpg" alt="" /><br /> </span> </p> <p> <span style="white-space:nowrap;"><span style="white-space:nowrap;">甉|°”接线图,参数讄¡½®åQˆé™„现场变频器实物图åQ‰ï¼š</span><br /> <span style="white-space:nowrap;">½Ž€æ˜“外接元件接¾U¿ï¼Œæ— ç”µè·¯å›¾ã€?/span><br /> <span style="white-space:nowrap;">F04=1 V2 端子控制变频器的˜qè¡Œé¢‘率åQ?/span><br /> <span style="white-space:nowrap;">F05=1 键盘+端子控制变频器运行、停æ­?/span><br /> <span style="white-space:nowrap;">F69 中:</span><br /> <span style="white-space:nowrap;">O06=3, DA1‹‚€‹¹‹å®žé™…电‹¹?/span><br /> <span style="white-space:nowrap;">O07=4, DA2‹‚€‹¹‹è¾“出电åŽ?/span><br /> <span style="white-space:nowrap;">O17=1, 输出信号5 选择故障报警</span><br /> <span style="white-space:nowrap;">O18=8. 输出信号6 选择有命令运行状æ€?/span><br /> <span style="white-space:nowrap;">三、保å…ȝ»´æŠ?/span><br /> <span style="white-space:nowrap;">该现场,灰尘大,铁屑四溅åQŒå®¹æ˜“造成如散热器¿U¯å°˜å µå¡žã€ç”µè·¯æ¿å¤ªè„ã€æ•£çƒ­ç¡…脂失效等ã€?/span><br /> <span style="white-space:nowrap;">无法起到散热作用åQŒéœ€è¦å®¢æˆïL»å¸¸è¿›è¡Œæ¸…扫,或者能够改善现场环境。(见图åQ?/span><br /> <img src="images/20130802105650_68505.jpg" alt="" /><br /> </span> </p></P> 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