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Current response based online inductance estimation method for IPMSM DTC drives considering magnetic saturation

Huayu Li (UGent) , Jan Melkebeek (UGent) and Frederik De Belie (UGent)
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Abstract
In the direct torque control (DTC) of Interior Permanent-Magnet Synchronous Machine (IPMSM), the machine inductances are used to compute electromagnetic torque and stator flux. However, the inductances of machine vary nonlinearly with respect to the current due to magnetic saturation effect. To online estimate the inductances of an IPMSM, this paper proposes a novel method based on the current response caused by active voltage vectors inherent in DTC. There is no need to introduce other current injection signal. In addition, other machine parameters, such as winding resistance and rotor flux, are not required to online estimate machine inductance. The influence of magnetic saturation on the performance of the inductance estimator is also investigated. Simulation results verify the effectiveness of the proposed geometrical method in online estimation of inductance when taking magnetic saturation effect into account.
Keywords
Online Inductance Estimation, Direct Torque Control, Current Response, Interior Permanent-Magnet Synchronous Machines, Magnetic Saturation

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Chicago
Li, Huayu, Jan Melkebeek, and Frederik De Belie. 2018. “Current Response Based Online Inductance Estimation Method for IPMSM DTC Drives Considering Magnetic Saturation.” In Preceedings of International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM) , 39–44. IEEE .
APA
Li, Huayu, Melkebeek, J., & De Belie, F. (2018). Current response based online inductance estimation method for IPMSM DTC drives considering magnetic saturation. Preceedings of International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM) (pp. 39–44). Presented at the 2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM) , IEEE .
Vancouver
1.
Li H, Melkebeek J, De Belie F. Current response based online inductance estimation method for IPMSM DTC drives considering magnetic saturation. Preceedings of International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM) . IEEE ; 2018. p. 39–44.
MLA
Li, Huayu, Jan Melkebeek, and Frederik De Belie. “Current Response Based Online Inductance Estimation Method for IPMSM DTC Drives Considering Magnetic Saturation.” Preceedings of International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM) . IEEE , 2018. 39–44. Print.
@inproceedings{8578218,
  abstract     = {In the direct torque control (DTC) of Interior Permanent-Magnet Synchronous Machine (IPMSM), the machine inductances are used to compute electromagnetic torque and stator flux. However, the inductances of machine vary nonlinearly with respect to the current due to magnetic saturation effect. To online estimate the inductances of an IPMSM, this paper proposes a novel method based on the current response caused by active voltage vectors inherent in DTC. There is no need to introduce other current injection signal. In addition, other machine parameters, such as winding resistance and rotor flux, are not required to online estimate machine inductance. The influence of magnetic saturation on the performance of the inductance estimator is also investigated. Simulation results verify the effectiveness of the proposed geometrical method in online estimation of inductance when taking magnetic saturation effect into account.},
  author       = {Li, Huayu and Melkebeek, Jan and De Belie, Frederik},
  booktitle    = {Preceedings of International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM) },
  isbn         = {978-1-5386-4941-1},
  language     = {eng},
  location     = {Amalfi, Italy},
  pages        = {39--44},
  publisher    = {IEEE },
  title        = {Current response based online inductance estimation method for IPMSM DTC drives considering magnetic saturation},
  url          = {http://dx.doi.org/10.1109/SPEEDAM.2018.8445257},
  year         = {2018},
}

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