Abstract
High performance operation of speed controlled AC drives without mechanical speed/position sensors rely on the dynamic models for estimation of flux and speed. Using backstepping, which is a recursive nonlinear design method, a new approach for the design of observers for speed sensorless control is de-veloped. The resulting scheme leads to a nonlinear full order observer for the rotor field. The rotor speed and the stator resis-tance are estimated by adaptive backstepping. Assuming motor parameters known the design achieves stability with guaran-teed region of attraction. The adaptive backstepping observer is used in a rotor field oriented controller and robustness due to variation of motor parameters is analysed by simulation.
Original language | Danish |
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Title of host publication | ECC2001, Porto, Portugal September 2001 |
Publication date | 2001 |
Pages | 1123 - 1128 |
Article number | 7076066 |
ISBN (Print) | 978-395241736-2 |
Publication status | Published - 2001 |
Event | Adaptive Backstepping design of an Observer for the Rotor Speed and Field of an Induction Motor - Duration: 19 May 2010 → … |
Conference
Conference | Adaptive Backstepping design of an Observer for the Rotor Speed and Field of an Induction Motor |
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Period | 19/05/2010 → … |