Loading...

Sensorless control of PMSMs with tolerance for delays and stator resistance uncertainties

Moghadam, M. A. G ; Sharif University of Technology | 2013

1254 Viewed
  1. Type of Document: Article
  2. DOI: 10.1109/TPEL.2012.2207405
  3. Publisher: 2013
  4. Abstract:
  5. Position sensorless control of ac machines at zero and low speed is possible using high-frequency carrier injection methods. These methods utilize anisotropic properties of rotor. Therefore, they may lose their efficiency for nonsalient machines or machines with small rotor saliency. In these machines, measurement noise and offset, existing delays, as well as model uncertainties may lead to inaccurate estimation of rotor position. Stator resistance which is usually neglected in these methods may also lead to a considerable error especially in machines with small rotor saliency. In this paper, a new position estimation method is presented, and it is shown that in comparison to conventional methods, the proposed scheme minimizes the estimation error caused by disturbances like stator resistance and delays of the system
  6. Keywords:
  7. High-frequency carrier injection ; Permanent magnet synchronous machine (PMSM) ; AC machine ; Anisotropic property ; Carrier injection ; Conventional methods ; Estimation errors ; High frequency HF ; Low speed ; Measurement noise ; Model uncertainties ; New position ; Permanent magnet synchronous machines ; Position sensorless control ; Rotor position ; Sensor less control ; Sensorless position control ; Stator resistance ; Estimation ; Stators ; Synchronous machinery ; Uncertainty analysis ; Rotors (windings)
  8. Source: IEEE Transactions on Power Electronics ; Volume 28, Issue 3 , 2013 , Pages 1391-1399 ; 08858993 (ISSN)
  9. URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6236201