描述
直流电机的电刷和体积的原因,限制了它的应用范围,变频调速可以说是由风机和水泵发展而来的,是由于风机和水泵节能的需要,变频调速是最佳选择,不过我个人认为就目前电价和变频器的自身的价格相比,这种节能是毫无意义的,因为要把变频器的投资收回,最少需要5-6年,在这5-6年的时间里,工况还不知道要发生什么变化。
因此,变频器最好应用在需要调速,而对启动性能及力矩调节要求不是很苛刻的场合,而这种场合比比皆是,这才是变频调速普遍应用的原因。因此可以说如果用直流调速控制器去控制交流电机那才是最好的,真能做到这一点,目前还很困难。
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主营:世界知名品牌的PLC、DCS系统备件模块
①Allen-Bradley(美国AB)系列产品》
②Schneider(施耐德电气)系列产品》
③General electric(通用电气)系列产品》
④Westinghouse(美国西屋)系列产品》
⑤SIEMENS(西门子系列产品)》
⑥销售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。
⑦estinghouse(西屋):OVATION系统、WDPF系统、MAX1000系统备件。
⑧Invensys Foxboro(福克斯波罗):I/A Series系统,FBM(现场输入/输出模块)
顺序控制、梯形逻辑控制、事故追忆处理、数模转换、输入/输出信号处理、数
据通信及处理等。Invensys Triconex:冗余容错控制系统、基于三重模件冗余(TMR)
结构的zui现代化的容错控制器。
⑨Siemens(西门子):Siemens MOORE,Siemens Simatic C1,Siemens数控系统等。
⑩Bosch Rexroth(博世力士乐):Indramat,I/O模块,PLC控制器,驱动模块等。
◆Motorola(摩托罗拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
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