| Titre : | Combined flux observer with signal injection enhancement for wide speed range sensorless direct torque control of IPMSM drives (2008) |
| Auteurs : | Andreescu, G., Auteur ; Pitic, C.I., Auteur ; Blaabjerg, F., Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | IEEE transactions on energy conversion (Vol. 23 n°2, Juin 2008) |
| Article en page(s) : | pp. 393 - 402 |
| Note générale : | Energy conversion |
| Langues : | Anglais |
| Tags : | Permanent magnet motors ; rotors ; synchronous motor drives ; torque control |
| Résumé : | This paper proposes a motion-sensorless control system using direct torque control with space vector modulation for interior permanent magnet synchronous motor (IPMSM) drives, for wide speed range operation, including standstill. A novel stator flux observer with variable structure uses a combined voltage-current model with PI compensator for low-speed operations. As speed increases, the observer switches gradually to a PI compensated closed-loop voltage model, which is solely used at high speeds. High-frequency rotating-voltage injection with a single D-module bandpass vector filter and a phase-locked loop state observer with a new synchronization procedure are used to estimate the rotor position, which is needed only by the current model in stator flux observer at low speeds. A new rotor speed estimator for the whole speed-loop range, based on the stator flux speed estimation with a new dynamic correction depending on estimated torque, is proposed and tested. Extensive simulation results and significant experimental results provided good performance for the proposed IPMSM sensorless system in more than 1:1000 speed range, under full-load operation, from very low speeds (1 r/min experimental) up to rated speed. |
| En ligne : | http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4456515&sortType%3Dasc_p_Sequence%26filter%3DAND%28p_IS_Number%3A4505383%29 |
