基于无速度传感器的高转矩软起动器的研究

本文对无速度传感器的软起动器进行了深入剖折，所研究的软起动器具备四种起动方式：电压斜坡起动、限流起动、转速斜坡起动和分级变频起动。提出了基于无速度传感器的分级变频高转矩异步电机软起动方案。研制出基于80C196KC单片机控制的无速度传感器的分级变频高转矩软起动器。该软起动器具有结构简单，起动转矩大，能实现速度闭环控制的优点，使软起动器控制技术提高了一步，并且有持续研究开发的前景，有望在较广泛的应用领域得到推广应用。

Research of High Torque Soft Starter Based on Non-velocity Sensor

The paper deeply analyzes the non-velocity sensor soft starter.It has 4 staring modes:voltage pitch starting,current limit starting,rotational speed pitch starting and graduation variable frequency starting.The soft starting scheme of graduation variable frequency high torque asynchronous motor based on non-velocity sensor is presented.The non-velocity sensor graduation variable frequency high torque soft starter based on 80C 196KC SCM control is researched.The soft starter has advantages of simple structure,high starting torque and speed close-loop control which improve the control technology of soft starter.It has prospect of constant R&D and is expected to extend and use in wide range application field.