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變頻控制方式的變遷

2020-04-16

伟德体育ZAISHIJIDIAOSUGUOCHENGZHONG,YIGEPUTONGDEPINLVKEDIAODEJIAOLIUDIANYUANBINGBUNENGMANZUDUIYIBUDIANDONGJIJINXINGDIAOSUKONGZHIDEYAOQIU,HUANBIXUKAOLVDAOYOUXIAOLIYONGDIANDONGJICICHANG、YIZHIQIDONGDIANLIUHEDEDAOLIXIANGDEZHUANJUTEXING,RUDIPINZHUANJUTEXINGDENGFANGMIANDEWENTI。


WEILEDEDAOJIAOWEILIXIANGDEBIANPINDIAOSUXIAOGUO,ZAIBIANPINKONGZHIJISHUDEFAZHANGUOCHENGZHONGCAIYONGLEV/fKONGZHIFANGSHI、ZHUANCHAPINLVKONGZHIFANGSHI、SHILIANGKONGZHIFANGSHIHEZHIJIEZHUANJUKONGZHIFANGSHIDENG。


1、BIANPINKONGZHIFANGSHIZHIV/fKONGZHI

伟德体育V/fKONGZHIFANGSHIJIUSHIZHIZAIBIANPINDIAOSUGUOCHENGZHONG,WEILEBAOCHIZHUCITONGDEHENGDINGERBAOZHENGDIANDONGJICHULI,DIANYAHEPINLVDEBIZHIBAOCHIYIDING,JIV/f=CHANGSHUDEKONGZHIFANGSHI。RUDUIYU380V、50HzDIANDONGJI,DANGYUNXINGPINLVWEI40HzSHI,YAOBAOCHIV/fHENGDING,ZE40HzSHIDIANDONGJIDEGONGDIANDIANYAWEI380×(40/50)=304V。


這種變頻器的性價比較高,被廣泛使用于以節能為目的和對速度精度要求不高的各種場合中,是變頻器的基本控制方式。但在速度控制方面不能給出滿意的控制性能,并且在輸出頻率較低時,因輸出電壓下降,定子繞組電流減小,電動機轉矩不足,需將輸出電壓適當提高,以提高電動機轉矩,,進行轉矩補償。


2、BIANPINKONGZHIFANGSHIZHIZHUANCHAPINLVKONGZHI

伟德体育ZHESHIYIZHONGJINXINGSUDUFANKUIKONGZHIDEBIHUANKONGZHIFANGSHI,QIDONG、JINGTAIXINGNENGDOUYOUYUV/fKONGZHIFANGSHI,YINCI,KEYIYINGYONGYUDUISUDUHEJINGDUYOUJIAOGAOYAOQIUDEGEZHONGDIAOSUXITONG。DANSHI,YINWEICAIYONGZHEZHONGKONGZHIFANGSHIDEBIANPINQIZAIKONGZHIXINGNENGSHANGBISHILIANGKONGZHIBIANPINQICHA,ERLIANGZHEYINGJIANDIANLUDEFUZACHENGDUYOUXIANGDANG,SUOYIMUQIANCAIYONGZHUANCHAPINLVKONGZHIFANGSHIDEBIANPINQIYIJIBENSHANGBEISHILIANGKONGZHIBIANPINQISUOQU。


3、BIANPINKONGZHIFANGSHIZHISHILIANGKONGZHI

SHILIANGKONGZHI,YECHENGCICHANGDINGXIANGKONGZHI。20SHIJI70NIANDAICHUYOUXIDEF·BlasschkeDENGRENSHOUXIANTICHU,BINGYIZHILIUDIANDONGJIHEJIAOLIUDIANDONGJIBIJIAODEFANGFACHANSHULEZHEYIYUANLI。


GAIFANGSHIMOFANGZHILIUDIANDONGJIDEKONGZHIFANGFA,CAIYONGSHILIANGZUOBIAOBIANHUAN,JIANGYIBUDIANDONGJIDEDINGZIDIANLIUFENWEICHANSHENGCICHANGDEDIANLIUFENLIANG(LICIDIANLIU)HECHUIZHIDECHANSHENGZHUANJUDEDIANLIUFENLIANG(ZHUANJUDIANLIU),TONGSHIKONGZHIYIBUDIANDONGJIDINGZIDIANLIUDEFUZHIHEXIANGWEI,JIKONGZHIDINGZIDIANLIUSHILIANG,GUCHENGWEISHILIANGKONGZHIFANGSHI。GAIKONGZHIFANGSHI

伟德体育BAOCHILEDIANDONGJICITONGDEHENGDING,JINERDADAOLIANGHAODEZHUANJUKONGZHIXINGNENG,SHIXIANGAOXINGNENGKONGZHI。


伟德体育SHILIANGKONGZHIFANGFADECHUXIAN,SHIYIBUDIANDONGJIBIANPINDIAOSUZAIDIANDONGJIDEDIAOSULINGYULIQUANFANGWEIDECHUYUYOUSHIDIWEI。TAYOUXUDUOYOUDIAN,KEYICONGLINGZHUANSUJINXINGKONGZHI,DIAOSUFANWEIKUAN,KEYIDUIZHUANJUJINXINGJINGQUEKONGZHI,XITONGXIANGYINGSUDUKUAI,JIA/JIANSUXINGNENGHAO。YINCI,GAIKONGZHIFANGSHIBEIGUANGFANYINGYONGZAIDIAOSUXINGNENGYAOQIUJIAOGAODEDIAOSUXITONGZHONG。DANSHI,SHILIANGKONGZHIJISHUXUYAODUIDIANDONGJICANSHUJINXINGZHENGQUEGUSUAN,RUHETIGAOCANSHUDEZHUNQUEXINGSHIYIZHIYANJIUDEHUATI。


4、BIANPINKONGZHIFANGSHIZHIZHIJIEZHUANJUKONGZHI

ZHIJIEZHUANJUKONGZHIJISHU,SHILIYONGKONGJIANSHILIANG、DINGZICICHANGDINGXIANGDEFENXIFANGFA,ZHIJIEZAIDINGZIZUOBIAOXIXIAFENXIYIBUDIANDONGJIDESHUXUEMOXING,JISUANYUKONGZHIYIBUDIANDONGJIDECILIANHEZHUANJU,CAIYONGLISANDELIANGDIANSHIDIAOJIEQI(Band-BandKONGZHI),BAZHUANJUJIANCEZHIYUZHUANJUGEIDINGZHIZUOBIJIAO,SHIZHUANJUBODONGXIANZHIZAIYIDINGDERONGCHAFANWEINEI,RONGCHADEDAXIAOYOUPINLVDIAOJIEQILAIKONGZHI,BINGCHANSHENGPWMMOKUANDIAOZHIXINHAO,ZHIJIEDUINIBIANQIDEKAIGUANZHUANGTAIJINXINGKONGZHI,YIHUODEGAODONGTAIXINGNENGDEZHUANJUSHUCHU。TADEKONGZHIXIAOGUOBUQUJUEYUYIBUDIANDONGJIDESHUXUEMOXINGSHIFOUNENGGOUJIANHUA,ERSHIQUJUEYUZHUANJUDESHIJIZHUANGKUANG。TABUXUYAOJIANGJIAOLIUDIANDONGJIYUZHILIUDIANDONGJIZUOBIJIAO、DENGXIAO、ZHUANHUA,JIBUXUYAOMOFANGZHILIUDIANDONGJIDEKONGZHI。YINWEITASHENGDIAOLESHILIANGBIANHUANFANGSHIDEZUOBIAOBIANHUANYUJISUANHEWEIJIEOUERJIANHUAYIBUDIANDONGJISHUXUEMOXING,MEIYOUTONGCHANGDEPWMMOKUANDIAOZHIXINHAOFASHENGQI,SUOYITADEKONGZHIJIEGOUJIANDAN、KONGZHIXINHAOCHULIDEWULIGAINIANMINGQUE、XITONGDEZHUANJUXIANGYINGXUNSUQIEWUCHAODIAO,SHIYIZHONGJUYOUGAOJING、DONGTAIXINGNENGDEJIAOLIUDIAOSUFANGSHI。YUSHILIANGKONGZHIFANGSHIBIJIAO,ZHIJIEZHUANJUKONGZHICICHANGDINGXIANGSUOYONGDESHIDINGZHICILIAN,TACAIYONGLISANDEDIANYAZHUANGTAIHELIUBIANXINGCILIANGUIJIHUOJINSIYUANXINGCILIANGUIJIGAINIAN。ZHIYAOZHIDAODINGZIDIANZUJIUKEYIBATAGUANCECHULAI。ERSHILIANGKONGZHICICHANGDINGXIANGSUOYONGDEJIUSHIZHUANZICILIAN,GUANCEZHUANZICILIANXUYAOZHIDAODIANDONGJIZHUANZIDIANZUHEDIANGAN。YINCI,ZHIJIEZHUANJUKONGZHIDADAJIANXIAOLESHILIANGKONGZHIJISHUZHONGKONGZHIXINGNENGYISHOUCANSHUBIANHUAYINGXIANGDEWENTI。


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