| Title |
A High-Performance Position Sensorless Motion Control System of Induction Motor with Direct Torque Control |
| Authors |
김민회(Kim, Min-Hoe) ; 김남훈(Kim, Nam-Hun) ; 백원식(Baek, Won-Sik) |
| Keywords |
DTC ; MRAS ; Stator Flux and Torque Observer ; Position Sensorless ; Motion Control |
| Abstract |
This paper presents an implementation of digital high-performance Position sensorless motion control system of an induction motor drives with Direct Torque Control(DTC). The system consist of closed loop stator flux and torque observer, speed and torque estimators, two hysteresis controller, optimal switching look-up table, IGBT voltage source inverter, and TMS320C31 DSP board. The stator flux observer is based on the combined current and voltage model with stator flux feedback adaptive control of which inputs are current and voltage sensed on motor terminal for wide speed range. The speed observer is using the model reference adaptive system(MRAS) with rotor flux linkages for speed turning signal. The simulation and experimental results are provided to evacuate the consistency and the performance of the suggested position sensorless control algorithm. The developed position sensorless system are shown a good motion control response characteristic and high performance features using 2.2[kw] general purposed induction motor. |