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变频电机中的轴电流问题

时间:2020-11-11 来源:豫通电机

  SHIYONGYUTONGYONGCHUANDONGXITONGDEPUTONGLONGXINGYIBUDIANDONGJI,YESHIYONGYUZAIBIANPINDIAOSUXITONGSHANGSHIYONG。YINCIYOUBIANPINQIGONGDIANDELONGXINGBIANPINYIBUDIANDONGJI,QIJIEGOUSHEJICANSHU(JIZUOHAOHECHICUN)JUNKECANZHAOTONGYONGDELONGXINGYIBUDIANDONGJI,DANYAOZHUYIDESHIYOUYUBIANPINDIANJIZAIGEZHONGBUTONGDEPINLVXIAYUNXING,SUOYIZAISHEJIZHIZAOLONGXINGBIANPINYIBUDIANDONGJISHIYAOZHUYIZHEIYIYINSUDUIDIANJIYUNXINGCHANSHENGDEGEZHONGBULIANGYINGXIANG,QIZHONGYIGEZHUYAODEYINGXIANGSHIBIANPINDIANJIYUNXINGSHI,ZHOUDIANLIUDUIDIANJIZHOUCHENGYINGXIANG,XIANXIAOBIANCONGYIXIAJIGEFANGMIANCHANSHUBIANPINDIANJIZHOUDIANLIUDUIDIANJIZHOUCHENGDEYINGXIANGYIJIFANGFANCUOSHI。

  1、轴电流的种类及产生的原因

  1、DIPINZHOUDIANLIU

  DIANDONGJICILUBUDUICHENGHUICHANSHENGDIPINZHOUDIANLIU,ZHEIZHONGXIANXIANGZAIRONGLIANGDAYU400KWDEDIANDONGJIZHONGCHANGJIAN,ZHEISHIYINWEI,BUDUICHENGDECILUHUIZAICIEZHONGCHANSHENGHUANXINGJIAOLIUCITONG(HUANZHUANGCITONG)CONGERZAITU1SUOSHIDEYOUDIANDONGJIZHUANZHOU、ZHOUCHENG、DUANGAIHEDIANDONGJIDINGZIJIZUOZUCHENGDEDAODIANXINGHUILUZHONGCHANSHENGJIAOLIUGANYINGDIANYA,DANGCIGANYINGDIANYAPOHUAILEZHOUCHENGRUNHUAJIDEJUEYUANNENGLIHOU,DIANLIUJIUHUILIUGUOBAOKUODIANDONGJIQIANHOUZHOUCHENGZAINEIDEZHEIGEHUILU。

  2、GAOPINZHOUDIANLIU

  GAOPINZHOUDIANLIUCHANSHENGDEYUANYIN:GONGPINSANXIANGZHENGXIANDIANYUANDIANYASHIPINGHENGDUICHENGDE,YINCI,QIZHONGXINGDIANDIANYAWEILING,KESHIBIANPINQIDESHUCHUDIANYASHITONGGUO PWMMAIKUANDIAOZHICHANSHENGDE,JITONGGUONIBIANQIJIANGZHILIUDIANYAZHUANBIANCHENGSANXIANGZHENGXIANJIAOLIUDIANYA(YUANLIJIANXIATU)。

  SUIRANQIJIPINFENLIANGSHIDUICHENGPINGHENGDE,DANYOUYUZAINIBIANDANYUANZHONGERJIGUANDEKAIDUANBUKENENGWANQUANTONGBU,GUKECHANSHENGBUDUICHENGDEGAOCIXIEBO,DAOZHILINGXUDIANYAFENLIANGZENGDA,JIZHONGXINGDIANDIANYABUWEILING。BIAOZHUNZHONGJIANGCILINGXUDIANYADINGYIWEIGONGMODIANYA,CIDIANYAKEYIZAIFUZAIDIANDONGJIRAOZUZHONGDEZHONGXINGDIANCHUCEDE,QIPINLVYUNIBIANDANYUANZHONGERJIGUANDEKAIDUANPINLVXIANGTONG,QIFUZHIYUZHILIUMUXIANDIANYACHENGZHENGBI。BIAOZHUNGUIDINGYOUGONGMODIANYACHANSHENGDEZHOUDIANLIUJIAOGAOPINZHOUDIANLIU。

  GAOPINZHOUDIANLIUDEZHONGLEI:

  ①、ZAIGONGMODIANYAZUOYONGXIA,YOUYANDINGZIEXUNHUANDEGAOPINCITONGCHANSHENGGAOPINGANYINGDIANYA,DANGCIGANYINGDIANYAGAODAOGOUPOHUAIZHOUCHENGRUNHUAJIDEJUEYUANSHI,SUOCHANSHENGDEYANZHOUCHENG、ZHOUHEDINGZIJIZUOLIANCHENGDEHUILUZHONGLIUDONGDEXUNHUANDIANLIU。

  ②、ZAIGONGMODIANYAZUOYONGXIA,ZAIDIANDONGJIJIZUOHEBIANPINQIJIJIAZHIJIANHUICHUXIANCHAOGUO100VDEDIANYAJIANG,XIELOUDAODINGZIJIZUOZHONGDEDIANLIUTONGGUOJINSHULIANZHOUQIYUCONGDONGJIXIESHEBEIHUILIUDAOBIANPINQIZHONG,SUOXINGCHENGDEZHOUJIEDIDIANLIU。

  ③、ZAIGAOPINGONGMODIANYAZUOYONGXIA,DIANDONGJINEIDEGEZHONGZASANDIANRONGXINGCHENGDEZUKANGBIANXIAO,CONGERWEIDIANLIULIUTONGTIGONGDIZUKANGLUJING,GUDANGDIANJINEIBUDEDIANRONGFANGDIANSHI,JIUHUICHANSHENGGAOPINDEZHOUCHENGDIANLIU。GAIDIANLIUTONGGUOBIANPINQIDEJIEDIDAOTIHEDIANRONGFANHUIDIANYUAN。

  2、轴电流的危害

  LIURUZHOUCHENGZHONGDEDIANLIUBIANHUAKUAI,QIBIANHUASULVQUJUEYUZHOUCHENGDEGONGYI,DANGZHOUCHENGDEGUNZHUBEIRUNHUAJIWANQUANJINMEIBUDAODIANSHI,CISHICUNZAIDEZHOUCHENGDIANRONGCHUYUJINGDIANCHONGDIANZHUANGTAI,RUGUOJINGDIANCHONGDIANDEDIANYACHAOCHUZHOUCHENGRUNHUAJIDEJUEYUANXINGNENG,JIUJIANGPOHUAIZHOUCHENGRUNHUAJIXINGCHENGDEYOUMO,CIWAIDIANDONGJICILUBUDUICHENGCHANSHENGDEGANYINGDIANYAYENENGPOHUAIZHOUCHENGRUNHUAJIDEJUEYUANXINGNENGJINERXINGCHENGJIAODADEZHOUDIANLIU,DANGZHOUDIANLIUDEMIDUCHAOGUO1.5A/mmHOU,ZHOUDIANLIUJUBUFANGDIANNENGLIANGSHIFANGCHANSHENGDEGAOWEN,KEYIRONGHUAZHOUCHENGNEIQUAN、WAIQUANHUOGUNZHUSHANGXUDUO WEIXIAOQUYU,BINGXINGCHENGAOCAO,CONGERCHANSHENGZAOSHENG、ZHENDONG,RUOBUNENGJISHIFAXIANCHULIJIANGDAOZHIZHOUCHENGSHIXIAO,DUISHENGCHANDAILAIJIDAYINGXIANG。

  3、轴电流损伤的预防方法

  DIANJUEYUANZHOUCHENGKEYITONGGUOJIANGJUEYUANXINGNENGJICHENGDAOZHOUCHENGZHONG,CONGGENBENSHANGXIAOCHUDIANSHI,CONGERTIGAOKEKAOXINGHEZENGJIAJIQIZHENGCHANGYUNXINGSHIJIAN。DIANJUEYUANZHOUCHENGTONGCHANGJUYOUDAIYANGHUALVTUCENGDEWAIQUANWAIJINGMIANHEDUANMIAN。DAITUCENGNEIQUANNEIKONGHEDUANMIANDEJUEYUANZHOUCHENG, YOUYUNEIQUANDETUCENGBIAOMIANJIBIWAIQUANJIAOXIAO,ZHEIXIEZHOUCHENGKETIGONGZENGQIANGDEBAOHUFANGZHIGAOPINDIANLIU。JUEYUANZHOUCHENGCAIYONGTEZHONGPENTUGONGYI,ZAIZHOUCHENGDEWAIBIAOMIANPENDUYOUZHIFUMO,FUMOYUJITIJIEHELIQIANG,JUEYUANXINGNENGHAO,KEBIMIANGANYINGDIANLIUDUIZHOUCHENGDEDIANSHIZUOYONG,FANGZHIDIANLIUDUIRUNHUAZHIHEGUNDONGTI、GUNDAOZAOCHENGDESUNHUAI,TIGAOZHOUCHENGDESHIYONGSHOUMING。