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Improving the rotor position estimation in permanent-magnet synchronous machines with a low-resolution position sensor

Hendrik Vansompel (UGent) , Frederik De Belie (UGent) and Jan Melkebeek (UGent)
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Abstract
In this paper, a rotor position estimation based on a low-resolution position sensor is proposed. As vector control of an ac permanent-magnet synchronous machine requires the rotor position with sufficiently high resolution, the low-resolution sensor signal is transformed into a spatially quantized rotating vector and based on this vector, a vector-tracking observer calculates the corresponding high-resolution rotor position. The implementation of a basic vector-tracking observer topology is discussed. To reduce the remaining position estimation errors, two improvements are introduced: speed dependent observer gains and a reduction of the harmonic content in the input vector of the vector-tracking observer. These result in a sufficiently low position estimation error. The performance of the vectortracking observer is studied in steady state and in transient state by simulation as well as experiments on a hardware setup.
Keywords
vectortracking observer, vector control, torque control, permanent-magnet machines, position estimation, Low-resolution sensor

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Chicago
Vansompel, Hendrik, Frederik De Belie, and Jan Melkebeek. 2010. “Improving the Rotor Position Estimation in Permanent-magnet Synchronous Machines with a Low-resolution Position Sensor.” In 2010 XIX International Conference on Electrical Machines (ICEM). Piscataway, NJ, USA: IEEE.
APA
Vansompel, H., De Belie, F., & Melkebeek, J. (2010). Improving the rotor position estimation in permanent-magnet synchronous machines with a low-resolution position sensor. 2010 XIX international conference on Electrical Machines (ICEM). Presented at the 2010 XIX international conference on Electrical Machines (ICEM 2010), Piscataway, NJ, USA: IEEE.
Vancouver
1.
Vansompel H, De Belie F, Melkebeek J. Improving the rotor position estimation in permanent-magnet synchronous machines with a low-resolution position sensor. 2010 XIX international conference on Electrical Machines (ICEM). Piscataway, NJ, USA: IEEE; 2010.
MLA
Vansompel, Hendrik, Frederik De Belie, and Jan Melkebeek. “Improving the Rotor Position Estimation in Permanent-magnet Synchronous Machines with a Low-resolution Position Sensor.” 2010 XIX International Conference on Electrical Machines (ICEM). Piscataway, NJ, USA: IEEE, 2010. Print.
@inproceedings{923674,
  abstract     = {In this paper, a rotor position estimation based on a low-resolution position sensor is proposed. As vector control of an ac permanent-magnet synchronous machine requires the rotor position with sufficiently high resolution, the low-resolution sensor signal is transformed into a spatially quantized rotating vector and based on this vector, a vector-tracking observer calculates the corresponding high-resolution rotor position. The implementation of a basic vector-tracking observer topology is discussed. To reduce the remaining position estimation errors, two improvements are introduced: speed dependent observer gains and a reduction of the harmonic content in the input vector of the vector-tracking observer. These result in a sufficiently low position estimation error. The performance of the vectortracking observer is studied in steady state and in transient state by simulation as well as experiments on a hardware setup.},
  author       = {Vansompel, Hendrik and De Belie, Frederik and Melkebeek, Jan},
  booktitle    = {2010 XIX international conference on Electrical Machines (ICEM)},
  isbn         = {9781424441747},
  keywords     = {vectortracking observer,vector control,torque control,permanent-magnet machines,position estimation,Low-resolution sensor},
  language     = {eng},
  location     = {Rome, Italy},
  pages        = {6},
  publisher    = {IEEE},
  title        = {Improving the rotor position estimation in permanent-magnet synchronous machines with a low-resolution position sensor},
  url          = {http://dx.doi.org/10.1109/ICELMACH.2010.5608255},
  year         = {2010},
}

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