An Adjusted Current Control System for Signal-injection-based Position Sensorless Control and Parameter Identification

Jung, Suk-Hwa; Ohnuma, Takumi; Doki, Shinji; Okuma, Shigeru; Fujitsuna, Masami

doi:10.1541/ieejias.132.418

Cited by 2 publications

(2 citation statements)

References 22 publications

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“…It is important for the electromagnetic actuators used for such devices to provide high-speed operation and high-accuracy positioning. However, the operation of rotors is not monitored, which poses a number of problems such as decline in stopping accuracy and longer braking time [15][16][17]. Thus, feedback control and other closed-loop control schemes are usually used for positioning control in electromagnetic actuators [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, sensorless control and open-loop control which does not require position feedback can be implemented at a lower expense as compared to feedback control. However, the operation of rotors is not monitored, which poses a number of problems such as decline in stopping accuracy and longer braking time [15][16][17]. Eddy current braking is used to improve braking performance of open-loop control.…”

Section: Introductionmentioning

confidence: 99%

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A Three‐Position Swing Electromagnetic Actuator with an Integrated Eddy Current Brake for Suppression of the Operating Time and Improvement of the Stopping Accuracy

Takahashi

Tsukima

Kai

et al. 2017

Electrical Engineering Japan

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A closed-loop control system is commonly used in electromagnetic actuators to ensure operating performance. However, this system frequently leads to high costs. We developed a swing electromagnetic actuator with an integrated eddy current brake to reduce the operating time and improve the stopping accuracy. The developed actuator is a three-position cylindrical actuator moving within a ±120º angle without closed-loop control. The rotor is composed of a bulk and thin metal laminations and the stator has three sets of pairs of coils. The rotor is stopped at an intermediate position by magnetic force generated by the coils. This paper describes the electromagnetic design and its evaluation by using an FEM simulation to predict its operating characteristics and measure its performance on a test bench. The superiority of our actuator design is verified by comparing these measurements. The operating time is reduced to onesixth of that of a laminated rotor and the over travel is compressed to zero. In addition, this actuator has the advantage that it is electrically robust against variations in the power supply. C⃝ 2017 Wiley Periodicals, Inc. Electr Eng Jpn, 200(3): 44-51, 2017; Published online in Wiley Online Library (wileyonlinelibrary.com).

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Three‐Position Swing Electromagnetic Actuator with an Integrated Eddy Current Brake for Suppression of the Operating Time and Improvement of the Stopping Accuracy

Takahashi

Tsukima

Kai

et al. 2017

Electrical Engineering Japan

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Current Control System with High-Frequency Signal Injection for Dual Three-Phase Permanent Magnet Synchronous Motor

et al. 2022

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Dual three-phase permanent magnet synchronous motors have the characteristics of multi-phase and permanent magnet synchronous motors, whose double-and decoupled-winding models based on the vector space decomposition have been reported. High-frequency signal injection methods enable position sensorless control, parameter identification, and the search for maximum torque per ampere operating points. However, the current control system with high-frequency signal injection for a dual three-phase permanent magnet synchronous motor has not yet been sufficiently discussed. This study compares the double-and decoupled-winding models for the current control system with the high-frequency signal injection and proposes a current control system with high-frequency signal injection. Furthermore, this study proposes a position sensorless control method at low speed based on the high-frequency voltage injection as an application of the proposed current control system with the high-frequency signal injection. Experiments verify the effectiveness of the proposed current control system with the high-frequency signal injection and the proposed position sensorless control method.

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An Adjusted Current Control System for Signal-injection-based Position Sensorless Control and Parameter Identification

Cited by 2 publications

References 22 publications

A Three‐Position Swing Electromagnetic Actuator with an Integrated Eddy Current Brake for Suppression of the Operating Time and Improvement of the Stopping Accuracy

A Three‐Position Swing Electromagnetic Actuator with an Integrated Eddy Current Brake for Suppression of the Operating Time and Improvement of the Stopping Accuracy

Current Control System with High-Frequency Signal Injection for Dual Three-Phase Permanent Magnet Synchronous Motor

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