Sensorless of Switched Reluctance Motor Based on Inductance Characteristic Point Under Magnetic Saturation-Reference-Cited by-同舟云学术

Sensorless of Switched Reluctance Motor Based on Inductance Characteristic Point Under Magnetic Saturation

Published:2024-07-30 Issue: Volume: Page:
ISSN:
Container-title:
language:
Short-container-title:

Author:

CAI Hui¹,FAN Yuhua¹

Affiliation:

1. Changsha University of Science & Technology, Changsha 410114, Hunan Province, China

Abstract

This paper presents a method of rotor position estimation for switched reluctance motors suitable for saturation. The effects of saturation as well as voltage changes are taken into account at the same time. It is based on the inductance in the unsaturated region. When the phase inductance is equal to the threshold, it is defined as a feature point. Meanwhile the feature pulse signal is triggered. Different inductance intersection thresholds are determined when the phase current and bus voltage change. The rotor position is estimated by interval speed. Compared with the traditional inductance method, the position estimation error is smaller. Finally, the correctness and effectiveness of the proposed method are verified by simulation and experiments.

Publisher

Springer Science and Business Media LLC

Reference17 articles.

1. Z. Xu, Q. Yu and F. Zhang, "Design and Analysis of Asymmetric Rotor Pole Type Bearingless Switched Reluctance Motor," in CES Transactions on Electrical Machines and Systems, vol. 6, no. 1, pp. 3–10, March 2022.

2. Development of a Rare-Earth-Free SR Motor With High Torque Density for Hybrid Vehicles,";Chiba A;IEEE Transactions on Energy Conversion,2015

3. G. Gallegos-Lopez, P. C. Kjaer and T. J. E. Miller, "A new sensorless method for switched reluctance motor drives," in IEEE Transactions on Industry Applications, vol. 34, no. 4, pp. 832–840, July-Aug. 1998.

4. T. Zhang, J. Chen and W. Zhu, "Suspension Performance Analysis on the Novel Hybrid Stator Type Bearingless Switched Reluctance Motor," in IEEE Transactions on Magnetics, vol. 57, no. 6, pp. 1–4, June 2021, Art no. 8203604.

5. Y. Nakazawa, K. Ohyama, H. Fujii, H. Uehara and Y. Hyakutake, "Position Sensorless Control of Switched Reluctance Motor using Estimated PWM Phase Voltage," 2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia), Niigata, Japan, 2018, pp. 1253–1258.