Sensorless Scheme for Interior Permanent Magnet Synchronous Motors with a Wide Speed Control Range

Hong, Chan-Hee; Lee, Ju; Lee, Dong-Myung

doi:10.6113/jpe.2016.16.6.2173

Cited by 4 publications

(3 citation statements)

References 16 publications

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“…However, the position sensors of electric motors are vulnerable to external impacts so that they are damaged or deteriorated to the extent that they cannot work in some cases. To solve this problem, sensorless control techniques have been proposed [4][5][6][7][8]. In the case of the sensorless control of motors, the motors can be driven even without any position sensors such as encoders and resolvers so that the cost and system size are reduced, and reliability is enhanced because the risk of position sensor failure is reduced.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Rotor Position Detection Performance According to the Frequency of Square Waveform Voltage in the Harmonic Injection Sensorless Method through HILS

Moon

Lee

2021

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In this paper, the rotor position estimation performance of the sensorless scheme for permanent magnet synchronous motors (PMSMs) implemented through the injection of high-frequency square-wave voltage according to the frequency of the square-wave voltage is presented through HILS (Hardware In the Loop Simulation) experiments. An inverter using an IGBT device usually has a switching frequency of around 15 kHz. On the other hand, GaN devices that can be switched on and off at frequencies higher than 100 kHz have been recently developed, and research is being actively conducted to apply GaNs to a variable speed system. The purpose of this study is to conduct HILS experiments to analysis the rotor position estimation ability of the sensorless technique in cases where a high switching frequency was applied, such as GaN devices, with that of a system having a usual switching frequency, such as IGBT. In the HILS system used in this study, an inverter and motor model implemented with Simulink are located in a real-time simulator. A sensorless motor control method was implemented with an FPGA control board, which includes a PWM interrupt service routine of 100 kHz frequency and a harmonic injection and position detection algorithm. The HILS experiments show rotor position detection errors according to the various frequency of the harmonic voltage injected for estimating the rotor position with a PWM frequency of 100 kHz cases. According to the experimental results, good position estimation was possible not only when the harmonic of 10 kHz corresponding to 1/10 of the PWM frequency was injected, but also when the harmonic of 1 kHz corresponding to 1/100 of the PWM frequency was injected. The experiments suggest that position estimation errors decrease as the frequency of the harmonic voltage increases, and, based on the foregoing, it is thought that the application of a GaN device capable of realizing a high switching frequency in a variable speed drive system can be another advantage.

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Section: Introductionmentioning

confidence: 99%

Analysis of Rotor Position Detection Performance According to the Frequency of Square Waveform Voltage in the Harmonic Injection Sensorless Method through HILS

Moon

Lee

2021

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“…Normally, the rotor position is obtained by mechanical sensors which will bring several disadvantages such as extra cost, axial size, low reliability, and noise immunity. Therefore, a large number of publications have been focused on the rotor position estimation to achieve sensorless control [1]- [5].…”

Section: Introductionmentioning

confidence: 99%

Dual Quasi-Resonant Controller Position Observer Based on High Frequency Pulse Voltage Injection Method

Mao

et al. 2020

IEEE Access

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This paper proposed a dual quasi-resonant controller position observer for conventional pulsating high frequency voltage injection method. The proposed position observer can not only improve the dynamic performance of the sensorless control, but can also compensate the position error fluctuation caused by the dead-time effect. To improve the dynamic performance, the digital bandpass filter in the traditional position observer used to extract high frequency current response is replaced by a quasi-resonant controller firstly. Moreover, an improved Luenberger observer without lowpass filter, which is usually used in traditional position observer to filter the noise in speed information, is adopted in the new position observer. Therefore, dynamic performances can be improved. Then, to reduce the sixth harmonic in the magnitude of position error and speed error caused by the dead-time effect, a frequency adaptive quasi-resonant controller is connected in parallel with the proportional-integral controller in the Luenberger observer. The experiment results verify that the proposed observer can reduce the position estimation error not only in steady state operation conditions, but in variable speed and variable load conditions, and the speed variation range can be widened as well.

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“…Because of the additional circuit, the total system becomes more expensive and mechanically voluminous [5,6]. Therefore, various control methods for the IPMSM have been researched to detect the rotor position without a sensor [7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Simple Sensorless Control of Interior Permanent Magnet Synchronous Motor Using PLL Based on Extended EMF

Han¹,

Cho²,

Lee³

2017

Journal of Electrical Engineering and Technology

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-This paper proposes an improved sensorless control to estimate the rotor position of an interior permanent magnet synchronous motor. A phase-locked loop (PLL) is used to obtain the phase angle of the grid. The rotor position can be estimated using a PLL based on extended electromotive force (EEMF) because the EEMF contains information about the rotor position. The proposed method can reduce the burden of calculation. Therefore, the control period is decreased. The simulation and experimental results confirm the effectiveness and performance of the proposed method.

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Sensorless Scheme for Interior Permanent Magnet Synchronous Motors with a Wide Speed Control Range

Cited by 4 publications

References 16 publications

Analysis of Rotor Position Detection Performance According to the Frequency of Square Waveform Voltage in the Harmonic Injection Sensorless Method through HILS

Analysis of Rotor Position Detection Performance According to the Frequency of Square Waveform Voltage in the Harmonic Injection Sensorless Method through HILS

Dual Quasi-Resonant Controller Position Observer Based on High Frequency Pulse Voltage Injection Method

Simple Sensorless Control of Interior Permanent Magnet Synchronous Motor Using PLL Based on Extended EMF

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