| Title |
Scheme of Vector Drive System for Induction Motor without Speed Sensor |
| Authors |
Ei-Sig Son ; Soon-Ill Hong |
| Abstract |
This paper describes a newly developed vector drive system without the speed sensor using theory of a flux observer and based on the field oriented vector control. The new method of speed estimation is presented to operate with the position and magnitude of the secondary flux vector which obtain to the observer and detected current. As the speed of estimation is determined to the flux and the motor constants, this method don"t need to adjust the gain of the parameter and is operated simply. On basic the derived theory for vector control, sensorless speed control system for induction motor drive is design and realized. It is determined a controllers gain and observer gain by simulation and the experiment of sensorless vector drive is realized |