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hylotus 关于零速时满转矩时如何实现的? 2009/11/12 10:29:42

很多变频器都声称能够做到零速满转矩。 假设现有一个变频器驱动的异步电机,空载。启动变频器,但是给定速度为零。 1、电机要有力矩… 阅读全文 0 人评论

hylotus 关于电机在弱磁状态下的调速问题 2009/11/12 10:18:52

在电机应用上必须保证在额定转速以下呢?如果要超过了额定转速应该调整有关弱磁方面的哪些参数呢?在传动专业,调速范围和弱磁升速… 阅读全文 1 人评论

hylotus 请问转矩闭环怎么实现? 2009/11/12 10:16:30

首先,要澄清一个问题,就是闭环恒转矩的调解范围问题,恒转矩控制,是指从0-额定转矩的调节,但是他也不能脱离电机的转矩特性曲… 阅读全文 0 人评论

hylotus 关于弱磁的问题? 2009/11/12 10:16:05

请问到底什么叫弱磁呢?什么情况下应该考虑这个问题呢?答:当电机需要超过额定转速运行时,需要用到弱磁,弱磁出现在直流控制中的… 阅读全文 0 人评论

hylotus 丰田汽车模具制造技术 2009/11/12 10:02:31

天津汽车模具有限公司于98年与日本丰田公司签定了技术合作协议,根据协议天津方在98、99年派遣技术骨干到丰田公司,进行共28 个人… 阅读全文 0 人评论

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