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A new flux observer based on voltage reconstruction for three-level DTC inverter

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3 Author(s)
Yaofei Han ; Dept. of Electr. & Electron. Eng., Henan Univ. of Urban Constr., Pingdingshan, China ; Xiaohong Fan ; Zhangfei Zhao

A DTC-SVM sensorless induction motor control system based NPC three-level is presented in this paper. In order to maintain high performance of the system, accurate stator flux is necessary. A novel phase compensation stator flux observer is proposed in the paper. Furthermore, a three-level phase voltage reconstruction algorithm is proposed as the base of the high precision flux observer firstly in the paper. The simulation and experiment results indicated that the DTC-SVM induction motor can run smoothly and have a high dynamic response with them.

Published in:

Power Electronics and Drive Systems (PEDS), 2011 IEEE Ninth International Conference on

Date of Conference:

5-8 Dec. 2011