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英飞凌IGBT厂家 > 英飞凌IGBT模块驱动 > 变频器IGBT模块故障防范

变频器IGBT模块故障防范

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SHENZHENYISHENGTONGKEJIYOUXIANGONGSI

时间 : 2018-09-19 21:19 浏览量 : 89

变频器IGBT模块故障防范

矿井提升机作为煤矿的重要组成部分,也是提升矿井总体水平与能量的关键部件。我们知道,随着科学技术的发展,尤其是变频技术的不断进步与发展,对变频器的运用越来越具有深刻性和广泛性。有些很多煤矿地面方面的主井对于提升机电控系统的造成型号变成了先进的变频控制零件后,对于2a的经常使用,都很一直正常,但是随着使用的时间变长和很多复杂情况的出现,使得变频器的IGBT模块损坏的经常现象,导致出现了很多情况,比如查找时间过多。有关矿及厂家相关技术人员分析认为,这是安全回路中的断轴的维护出现了可能甚至确定的故障,造成IGBT模块相关温度不断升高后,加上散热又不能够及时,提升机过载,还有环境温度过高,而降温措施不好等一系列因素造成的。当然,我们相信,采取积极措施之后,就会恢复到正常。

  1 提升机的电控系统组成

  BUTONGDETISHENGJIYOUBUTONGDEZUCHENGFEN,DANZHUYAOHAISHIYOUDIAOSUGUANLI、JIANKONGTIXIHEKONGZHIXITONGDENGZUCHENG。DIAOSUGUANLIXITONGZHUYAOYOUDIAOSUYUGONGDIANLIANGGEXITONGZUCHENG,JIANGUANTIXIZHUYAOYOUSHANGWEIJIYUCAOZUOTAIGOUCHENG,KONGZHIGUANLIXITONGZHUYAOYOUZHUKONGHEFUKONGLIANGGEXITONGZUHEERCHENG。ZHIXINGJIGOU,QIZUOYONGZHUYAOBAOKUODUIDIANDONGJIDEQIBU、JIANJIASU、DENGSUHETINGZHIDENG,DOUXUYAOJINXINGKONGZHI。ERZHUKONGXITONGDEZUOYONG,ZHUYAOSHIYONGLAIWANCHENGDUITISHENGJIDEJIAJIANSU、DENGSU、PAXINGHETINGCHEDENGYIXILIEYUNDONGBIANHUAGUOCHENGDEKAIYUGUANDECHENGDUJINXINGLUOJIGUANLIYUKONGZHI。BINGJIYUXIANGGUANDEBIYAOBAOHU,BINGYUQITAFENXITONGDEJIAOHUANXINHAOCUSHIQIGONGTONGWANCHENGJINXINGJIANGDUITISHENGJIZHENGGEJITIDEJIJIGUANLIYUKONGZHI。ERFUDAOKONGZHIXITONG,TAZHUYAOSHITISHENGJIZHONGGEGEHUILUXIANGGUANDEGONGYINGDIANYUAN、KONGZHIGUANLIHUILUDEGEGEJIEKOUHEFUZHUJIXITONGDEGUANLIKONGZHIDENG。

  1.1 提升机变频器的IGBT模块

  DUITISHENGJILAISHUO,QIBIANPINKONGZHILIDEIGBTMOKUAI,TAGENGDUODESHIYIZHONGFUHEDUOYANGDEYUANJIAN,QIZHUYAOCHENGFENBAOKUOMOSFETYUSHUANGJIXINGJINGTIGUAN,TASHIZUIHEXINDEDONGXI,TADEGONGZUOPINLVZAILIMIANSHIZUIGAODE,BIRUZAIQUEDINGDECHENGDUFANWEINEI,KEYIYOUXIAODIMANZUTISHENGJIDEJIAJIANSUDEPINGHUAXINGDENGYAOQIU。DANZAIZHEILI,YAOZHUYIDESHIYAOBAOZHENGQIYUNXINGGUOCHENGZHONGWENDUDESANRE,FOUZEDEHUA,DANGQIWENDUSHENGGAOHOU,QIGONGZUOXIAONENGHUIJIANGDISHENZHISUNHUAI。

  1.2 提升机电控系统的部分参数

白小姐四肖必选一肖  JIADAZHUANBIANZHUJINGDETISHENGFANGSHIFANGFA,BIRUBIANHUANWEIXIEJINGCHUANCHEDENG,QUEBAOQIDIANJIGONGLVDEZHENGCHANGXING,QUERENQIEDINGGONGZUODIANYADEWENDINGXING,BAOZHENGQIEDINGGONGZUODIANLIUDECHANGTONGXING,JIAQIANGDIANDONGJIDEGENGXINHUANDAI,JIJIGAIBIANDIANKONGBIANPINLINGBUJIANDEYUSHIGENGXIN,TISHENGQIZUIDAYUNXINGSUDUYUXIAONENG。DUITISHENGJIDIANKONGXINGHAODEGENGXINLIDU,YOUQISHIIGBTMOKUAI。KEYICHANGSHIZAIQIWAIJIJIZENGJIAJIANCEDANYUAN,YIBAOZHANGQIDIANYADIANLIUDENGCANSHUDEJIJIYUNXING。

  1.3 安全回路中断轴保护的原理

白小姐四肖必选一肖  DUIYUTISHENGJIDEANQUANHUILU,JIJIQUEBAOQIZHONGDEDUANZHOUBAOHUANZHUANGSHEZHIZAITISHENGJIXIANGGUANDESHENDUZHISHIQISHANG。BIRUQISHIGEYONGJIUCITIEDUIQILINJINDECHUANGANQIJINXINGLIANGHAODEGANYING,JINJIEZHEPLCZHUOYUEDIDUIGANYINGXINHAODECHUANDISHUCHUJINXINGZHUNQUEDIJIANKONGYUSHIBIE,YOUQISHIZAIDANGTISHENGJILIJIJIASUYIHOUDEZHEIDUANGUOCHENGZHONG。RUGUOZAIJIMIAODESHIJIANNEI,MEIYOUJIESHOUDAOXIANGGUANDEGANYINGXINHAO,PLCJIUHUIRENWEITISHENGJIDEZHUZHOUMEIYOUJINXINGGONGZUO,JIUHUILIJIQIDONGANQUANZHIDONG。

  2 IGBT模块损坏的原因分析

白小姐四肖必选一肖  SHIJISHANG,WOMENZHIDAO,ZAOCHENGIGBTMOKUAIDEYUANYINHENDUO,DANQIZHUYAOYUANYINBIRUYOUTISHENGJIPINFANDEDIANKONGGUZHANG、DIANKONGJUNEILIDEJICHENDAOZHIDESANREBULIANG、BENSHENGONGZUODEHUANJINGWENDUJIUGAODENG。DANZUIZHONGDOUMINGBAIDEJIUSHIQIIGBTMOKUAIDEWENDUSHENGGAOHOU,BUNENGGOUYOUXIAOKUAISUDIJIANGXIAWENDULAI。

  2.1 提升机电控系统故障造成IGBT模块损坏

  TISHENGJIDEDIANKONGGUANLIXITONGZHONGDEDUANZHOUBAOHUBUFEN,YOUQISHISHENDUZHISHIQISHANGXIANGGUANDECITIEBEIPENGLUOHOU,JINGUANJIAOCHERENGRANKEYIYUNXING,SHENZHIJIASUDAOZHONGSUSHI,PLCMEIJIANYANJIANCEDAOZHUZHOUDEXINHAOSHI,JIUHUIDAOZHIANQUANHUILUDONGZUODEFASHENG,JINERSHIDEKONGZHIHUILULIJIQIDONGANQUANWEIHU,DAOZHIYEYAZHANXUNJITINGZHIGONGZUO,WULUNSHIPANXINGZHAHAISHIGUNTONGDENGBUNENGZHENGCHANGYUNXING,DANBIANPINQIBINGMEIYOULIJITINGZHIGONGZUO,IGBTMOKUAIRENGRANZAIGONGZUO,ERQIEZHENGFARE,ERJIXUPAIRE。RURONGYILIANXUGONGZUO,RONGYIHUSHIDEHUA,HENRONGYIDAOZHIIGBTMOKUAIDESUNHUAICHENGDU。

  2.2 过载造成IGBT模块损坏

  ZAIRICHANGDETISHENGGUOCHENGZHONG,JINGUANXIANGGUANRENYUANXIANGZHUAJINSHIJIAN,YINCIJIADATISHENGRENWULIANG,ZHEIYANGKENENGDAOZHIQICHAOZAITISHENGDEDALIANGXIANXIANG。YOUQISHICHAOZAITISHENGCISHUGUODUO,JIUHUISHIDEIGBTMOKUAIZAIQIFUHELIANGZHIWAIGONGZUO,YEJIUSHIQISHEJIDEGONGZUOFANWEI。YINWEIWENDUGUOGAOHOU,SANREBUJISHI,JIASHANGWENDUSHANGSHENGDECISHUMIANYAN,JIUHUIJIASUIGBTMOKUAIDESUNHUAI。

  2.3 工作环境温度过高造成IGBT模块损坏

白小姐四肖必选一肖  WOMENZHIDAO,ZAISHEJIZHONGIGBTMOKUAIWEIYULIMIAN,RUZAIRICHANGDEJIANCHAZHONG,DUIQIWEIHULIDUBUQUANMIAN,JIUHUIZAOCHENGLIMIANJIXUGENGDUODEHUICHEN,YINGXIANGSANRECHENGDU,JINGUANGAIBIANLEDIANKONGSHINEIDEJIANGWENCUOSHI,DANXIAOGUOBINGBUSHIHENLIXIANG,HAISHIRONGYIDAOZHIIGBTMOKUAIDESUNHUAI,BUKEBIMIAN。

  3 预防措施

  3.1 修正电控参数,完善保护范围

  JIJIJIAQIANGBIANPINQIDEZHENGCHANGGONGZUOQINGKUANG,BIRUANQUANHUILUZAILIANGHAOYUNXINGDEZHUANGTAIXIA,NENGGOUZISHENXUNSUDITINGZHIGONGZUO。ERQIEKEYIYOUXIAODIBAOZHENGZAIIGBTMOKUAIWENDUSHENGGAODEQINGKUANG,KEYIJINKENENGDIJIANSHAOHUOBIMIAN。ZHEISHIXUYAOXIANGGUANRENYUANDEJIJIDIAOZHENG。

  3.2 提升维护人员及操作司机的技术素质

  JIJITONGGUOSHIGUCHAZHAOSHENKEGUANGFANDEYUANYIN,ZHEIYANGKEYIYOUXIAODIJIANCETISHENGJIWEIXIUWEIHUXIANGGUANRENYUANDEZAINAZHONGCHENGDUSHANGJISHUSUZHIPIANDIDECUNZAI,CHALOUBUQUE,JIJIBAWOQIGUZHANGDIANDEZHUNQUECHENGDUYUDINGWEI,JIAQIANGPINGSHIDIANKONGXITONGRICHANGWEIXIUWEIHUDEZIXINXINYUYONGQI,ZENGQIANGQIDANLIANGYUZIXICHENGDU,ZHEIYANGKEYIYOUXIAODIBIMIANZAIBENSHENMEIYOUGUZHANGDEQINGKUANGXIA,FANERZAOCHENGLEDALIANGDEGUZHANG。YINCI,YAOJIJIDITISHENGZIJIDEJISHUSHUIPING,JIANSHAORICHANGSHIGUDEFASHENGLV,LINGYIFANGMIANJIJIYAOQINGZHUANJIADEZHIDAO,DUOXIQUJINGYANYUJIAOXUN,DUOZONGJIEKEXUEDEGUILV,YIGENGHAODIYINGDUI。

  3.3 改善电控室的降温方法

  JIAQIANGGAIHUANDIANKONGSHIDEJIANGWENFANGSHI,ZHEIYANGKEYIJIJIBAOZHENGQIJIANGWENXIAOGUO,ERQIEKEYIFANGZHIQICHUXIANJICHEN,BIRUHUANQIJIANGWEN,BIRUKONGDIAOJIANGWEN,JIBIANPINQIHEIGBTMOKUAIDENGCHUANGSHEYIGEWUBIMEIHAODEYUNXINGHUANJING。ZHEIYANGDUIDUIYUWENDUDIGUODUSHENGGAODAOZHIDEQUEXIANYIZHONGMIBUYUHUANJIE,LINGYIFANGMIANYESHIDUIQIGENGHAODEFANGFANCUOSHI。

  4 JIELUN

  ZAITISHENGJIFASHENGLEWENTIHOU,YINGJIJITONGGUOGUZHANGYUANYINFENXI,LIJICAIQUYOUXIAOCUOSHI,BAOZHENGQIZHENGCHANGYUNXING,SHIXIANZUIDAXIAOYIHUADEGONGZUO。