Speed Sensorless Detection of Rotor Flux Position for Induction Machines at Low Speed and Standstill

2014 ◽  
Author(s):  
S. Dietrich ◽  
O. Zirn ◽  
M. Braun ◽  
J. Haag
Keyword(s):  
Induction Machines ◽  
Speed Sensorless ◽  
Low Speed ◽  
Rotor Flux

scholarly journals Adaptive-Loss minimization control for speed sensorless induction machines

2014 ◽  
Vol 17 (2) ◽  
pp. 33-44
Author(s):  
Phuong Minh Le ◽  
Phong Hoai Nguyen ◽  
Hung Ngoc Dang
Keyword(s):  
Induction Machines ◽  
Control Model ◽  
Loss Minimization ◽  
Speed Sensorless ◽  
Load Range ◽  
Resistance Change ◽  
Adaptive Models ◽  
Rotor Flux ◽  
The Difference ◽  
Stator Resistance

This paper presents a new online loss-minimization algorithm in the adaptive control model for speed sensorless based on the Direct Rotor Flux Oriented Control (DRFOC) with optimum flux in the condition of do variable stator resistance. The paper also presents a new approach to develop a reference and adaptive models to estimate the speed and to observe stator resistance change. Simulation results in Matlab Simulink showed good adaptability of the presented model controls even when the stator resistance changes to up 200% of rated. In addition, using the proposed algorithm allows reducing losses and improving efficiency of proposed control model in comparison with DRFOC traditional model for load range 0-70% of the rated. Where the difference of efficient can reach 42%, and the difference in loss to 85%.

Study of Low-Speed Sensorless Control of SPMSM by Controlling the Elliptical Inductance

2014 ◽  
Vol 134 (1) ◽  
pp. 106-114
Author(s):  
Sari Maekawa ◽  
Toshifumi Hinata ◽  
Nobuyuki Suzuki ◽  
Hisao Kubota
Keyword(s):  
Sensorless Control ◽  
Speed Sensorless ◽  
Low Speed

Speed sensorless PWM robust control of induction machines

2008 ◽  
Author(s):  
Oscar Barambones ◽  
Patxi Alkorta ◽  
Aitor Garrido ◽  
Izaskun Garrido
Keyword(s):  
Robust Control ◽  
Induction Machines ◽  
Speed Sensorless
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