scholarly journals Extended Sliding Mode Disturbance Observer-Based Sensorless Control of IPMSM for Medium and High-Speed Range Considering Railway Application

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 175302-175312 ◽  
Author(s):  
Abebe Teklu Woldegiorgis ◽  
Xinglai Ge ◽  
Songtao Li ◽  
Mannan Hassan
Keyword(s):  
Disturbance Observer ◽  
High Speed ◽  
Sliding Mode ◽  
Sensorless Control ◽  
Sliding Mode Disturbance Observer ◽  
Speed Range

scholarly journals Enhancement of Sensorless Control for Non-Sinusoidal Multiphase Drives-Part I: Operation in Medium and High-Speed Range

Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 607
Author(s):  
Youssouf Mini ◽  
Ngac Ky Nguyen ◽  
Eric Semail ◽  
Duc Tan Vu
Keyword(s):  
Control Strategy ◽  
High Speed ◽  
Sliding Mode ◽  
Sensorless Control ◽  
Control Strategies ◽  
High Accuracy ◽  
Motor Drives ◽  
Synchronous Machines ◽  
Permanent Magnet Synchronous Machines ◽  
Speed Range

This two-part study proposes a new sensorless control strategy for non-sinusoidal multiphase permanent magnet synchronous machines (PMSMs), especially integrated motor drives (IMDs). Based on the Sliding Mode Observer (SMO), the proposed sensorless control strategy uses the signals (currents and voltages) of all fictitious machines of the multiphase PMSMs. It can estimate the high-accuracy rotor positions that are required in vector control. This proposed strategy is compared to the conventional sensorless control strategy that applies only current and voltage signals of the main fictitious machine, including the fundamental component of back electromotive force (back EMF) of non-sinusoidal multiphase PMSMs. Therefore, in order to choose an appropriate sensorless control strategy for the non-sinusoidal multiphase PMSMs, these two sensorless control strategies will be highlighted in terms of precision with respect to rotor position and speed estimation. Simulations and the experimental results obtained with a non-sinusoidal seven-phase PMSM will be shown to verify and compare the two sensorless control strategies. In this part of the study (part I), only sensorless control in the medium and high-speed range is considered. Sensorless control at the zero and low-speed range will be treated in the second part of this study (part II).

scholarly journals The sensorless control strategy of UAV rotor motor in full speed range

2021 ◽  
Vol 261 ◽  
pp. 01010
Author(s):  
Siyuan Ma ◽  
Xiang Yu ◽  
Yunjun Guo ◽  
Rong Ran
Keyword(s):  
Control Strategy ◽  
High Speed ◽  
Closed Loop ◽  
High Efficiency ◽  
Sliding Mode ◽  
Sensorless Control ◽  
Open Loop ◽  
Speed Range ◽  
Full Speed ◽  
Position Sensorless

UAV (Unmanned Aerial Vehicle) has broad application prospects in various fields. In order to meet the needs of stability and efficiency during flight, a surface-mounted permanent magnet synchronous motor is used as its rotor motor, and a position sensorless control technology is used to control the rotor motor with high efficiency and high dynamic response. This paper proposes a position sensorless control strategy in the full speed range for the actual application requirements of UAV. In low speed ange, I/F control strategy with speed-open-loop and current-closed-loop is. In medium and high speed range, a sliding mode observer is adopted to provide estimated rotor position and speed. To achieve smooth switching from I/F control stage to speed closed-loop stage, a switching algorithm is proposed. The feasibility of the proposed hybrid control strategy is verified by simulation results.

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