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新乡起重电器厂家解说变频器的四种控制方式

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新乡起重电器厂家解说变频器的四种控制方式

发布日期:2019-11-07 作者: 点击:

新乡起重电器厂家解说变频器的四种控制方式

YI、V/fHENGDINGKONGZHI:

V/f控制是在改变电动机电源频率的同时改变电动机电源的电压,使电动机磁通保持一定,新乡起重电器厂家在较宽的调速范围内,电动机的效率,功率因数不下降,因为是控制电压(Voltage)与频率(Frequency)之比,称为V/f控制。

立博体育HENGDINGV/fKONGZHICUNZAIDEZHUYAOWENTISHIDISUXINGNENGJIAOCHA,ZHUANSUJIDISHI,DIANCIZHUANJUWUFAKEFUJIAODADEJINGMOCALI,BUNENGQIADANGDEDIAOZHENGDIANDONGJIDEZHUANJUBUCHANGHESHIYINGFUZAIZHUANJUDEBIANHUA。

QICISHIWUFAZHUNQUEDEKONGZHIDIANDONGJIDESHIJIZHUANSU,YOUYUHENGV/fBIANPINQISHIZHUANSUKAIHUANKONGZHI,YOUYIBUDIANDONGJIDEJIXIETEXINGTUKEZHI,SHEDINGZHIWEIDINGZIPINLVYEJIUSHILIXIANGKONGZAIZHUANSU,ERDIANDONGJIDESHIJIZHUANSUYOUZHUANCHALVSUOJUEDING,SUOYIV/fHENGDINGKONGZHIFANGSHICUNZAIDEWENDINGWUCHABUNENGKONGZHI,GUWUFAZHUNQUEKONGZHIDIANDONGJIDESHIJIZHUANSU。

ER、ZHUANCHAPINLVKONGZHI:

转差频率是施加于电动机的交流电源频率与电动机速度的差频率,新乡起重电器厂家立博体育根据异步电动机稳定数学模型可知,当频率一定时,异步电动机的电磁转矩正比于转差率,机械特性为直线。

立博体育ZHUANCHAPINLVKONGZHIJIUSHITONGGUOKONGZHIZHUANCHAPINLVLAIKONGZHIZHUANJUHEDIANLIU,ZHUANCHAPINLVKONGZHIXUYAOJIANCHUDIANDONGJIDEZHUANSU,GOUCHENGSUDUBIHUAN,SUDUDIAOJIEQIDESHUCHUWEIZHUANCHAPINLV,RANHOUYIDIANDONGJISUDUYUZHUANCHAPINLVZHIHEZUOWEIBIANPINQIDEJIDINGPINLV。

YUV/fKONGZHIXIANGBI,QIJIAJIANSUTEXINGHEXIANZHIGUODIANLIUDENENGLIDEDAOTIGAO,LINGWAITAYOUSUDUDIAOJIEQI,LIYONGSUDUFANKUIGOUCHENGBIHUANKONGZHI,SUDUDEJINGTAIWUCHAXIAO,RANERYAODADAOZIDONGKONGZHIXITONGWENTAIKONGZHI,HAIDABUDAOLIANGHAODEDONGTAIXINGNENG。

SAN、SHILIANGKONGZHISHILIANGKONGZHI,YECHENGCICHANGDINGXIANGKONGZHI

立博体育TASHIQISHINIANDAICHUYOUXIDEF.BlasschkeDENGRENJIAOZAOTICHULAIDE,YIZHILIUDIANJIHEJIAOLIUDIANJIBIJIAODEFANGFACHANSHULEZHEIYIYUANLI,YOUCIKAICHUANGLEJIAOLIUDIANDONGJIHEDENGXIAOZHILIUDIANDONGJIDEXIANHE。

立博体育SHILIANGKONGZHIBIANPINDIAOSUDEZUOFASHIJIANGYIBUDIANDONGJIZAISANXIANGZUOBIAOXIXIADEDINGZIJIAOLIUDIANLIUIa、Ib、Ic,TONGGUOSANXIANG、ERXIANGBIANHUAN,DENGXIAOCHENGLIANGXIANGJINGZHIZUOBIAOXIXIADEJIAOLIUDIANLIUIa1、Ib1,ZAITONGGUOANZHUANZICICHANGDINGXIANGXUANZHUANBIANHUAN,DENGXIAOCHENGTONGBUXUANZHUANZUOBIAOXIXIADEZHILIUDIANLIUIm1、It1(Im1XIANGDANGYUZHILIUDIANDONGJIDELICIDIANLIU,It1XIANGDANGYUZHILIUDIANDONGJIDEDIANSHUDIANLIU),RANHOUMOFANGZHILIUDIANDONGJIDEKONGZHIFANGFA,QIUDEZHILIUDIANDONGJIDEKONGZHILIANG,JINGGUOXIANGYINGDEZUOBIAOFANBIANHUANSHIXIANDUIYIBUDIANDONGJIDEKONGZHI。

SHILIANGKONGZHIFANGFADECHUXIAN,SHIYIBUDIANDONGJIBIANPINDIAOSUZAIDIANDONGJIDEDIAOSULINGYULICHUYUYOUSHIDIWEI,DANSHISHILIANGKONGZHIJISHUXUYAODUIDIANDONGJICANSHUJINXINGZHENGQUEGUSUAN,RUHETIGAOCANSHUDEZHUNQUEXINGSHIYIZHIYANJIUDEHUATI。

SI、ZHIJIEZHUANJUKONGZHI

立博体育1985NIAN,DEGUOLUERDAXUEDEDePenbrockJIAOSHOUTICHULEZHIJIEZHUANJUKONGZHILILUN,GAIJISHUZAIHENDACHENGDUSHANGJIEJUELESHILIANGKONGZHIDEBUZU,TABUSHITONGGUOKONGZHIDIANLIU,CILIANDENGLIANGJIANJIEKONGZHIZHUANJU,ERSHIBAZHUANJUZHIJIEZUOWEIBEIKONGLIANGLAIKONGZHI。

转矩控制的优越性在于,转矩控制是控制定子磁链,在本质上并不需要转速信息,新乡起重电器厂家立博体育控制上对除定子电阻外的所有电机参数变化鲁棒性良好,所引入的定子磁链观测器能很容易估算出同步速度信息,因而能方便的实现无速度传感器,这种控制被称为无速度传感器直接转矩控制。

新乡起重电器厂家


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关键词:新乡起重电器厂家,起重电器厂家,新乡起重电器

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