异步电机全转速范围软启动方法  

The soft starting method for full speed adjusting range of induction motor

作　　者：陈涛[1] 张军[2] 

机构地区：[1]河南工程学院电气信息工程学院,河南郑州451191 [2]风神轮胎股份有限公司设备工程部,河南焦作454000

出　　处：《河南工程学院学报（自然科学版）》2016年第3期54-58,共5页Journal of Henan University of Engineering：Natural Science Edition

基　　金：河南省高等学校重点科研项目(15B470001)

摘　　要：针对异步电机启动电流过大的问题,提出了一种基于分级变频与周波调压相结合的全转速范围可控软启动方法.分级变频能够有效地提高异步电机的启动转矩和重载启动能力;周波调压方法能够有效地减少输出电压及输出电流死区,提高软启动器输入与输出侧功率因数.基于该方法,完成了软启动装置的软硬件系统设计并对所提方法进行了验证,结果证实了该方法的有效性.The soft starting method integrated with discrete variable frequency and cycle voltage regulation is proposed in this paper to solve the problem of large starting current of induction motor. The discrete variable frequency method has the ability to improve the starting torque and the load capability of induction motor,and the cycle variable voltage method is able to reduce the dead time of output voltage and current,improve the input and output power factor of the soft starter. Based on the proposed method,the hardware and software system of the soft starter is designed,the experimental verification is also implemented,and the experimental results validate the availability of the proposed method.

关 键 词：异步电机 软启动 分级变频 周波调压 

分 类 号：TM343[电气工程—电机]