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Phase Synchronization-Based Commutation Error Correction Method for position sensorless Brushless DC Motor

IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS 2024年第3期20卷 3964-3973页

作者： Zhang, Haifeng Deng, Lirong Jin, Hao Li, Haitao Zheng, Shiqiang Zhou, Xinxiu Beihang Univ Sch Instrumentat & Optoelect Engn Key Lab Ultraweak Magnet Field Measurement Technol Minist Educ Beijing 100191 Peoples R China Beihang Univ Beijing Engn Res Ctr High Speed Magnet Suspended M Beijing 100191 Peoples R China Beihang Univ Ningbo Inst Technol Ningbo 315800 Zhejiang Peoples R China China Univ Petr East China Coll Control Sci & Engn Qingdao 266555 Shandong Peoples R China

position sensorless control of brushless dc motor has been an effective measure for size reduction and reliability improvement. However, the commutation error remains a significant factor limiting the motor operating efficiency. Therefore, a phase synchronization-based commutation error correction method is proposed in this article. First, the primary commutation error sources are analyzed, and the conventional commutation error correction methods are compared. Then, a commutation error construction and correction method is investigated to overcome the problem that the commutation accuracy is affected by noise interference and motor inductance in the conventional methods. By implementing the developed closed-loop correction system, desired commutation error correction performance is achieved. Finally, experiments are carried out for the effectiveness validation of the proposed method.

关键词： Brushless dc (BLdc) motor commutation error correction phase synchronization position sensorless control

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Sliding mode sensorless control model of hub motor based on digital twin technology

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INTERNATIONAL JOURNAL OF EMERGING ELECTRIC POWER SYSTEMS 2025年

作者： Hong, Bin Li, Fugeng Feng, Changyuan Hou, Jing Nie, Yahui Cao, Zhan Ma, Zhihao Tianjin Univ Internal Combust Engine Res Inst Vehicle Intelligence & Simulat Engn Lab Tianjin Peoples R China Tianjin Univ Sch Mech Engn Tianjin Peoples R China Tianjin Tianbo Sci & Technol Co Ltd Tianjin Peoples R China

This paper introduces a novel integration of sliding mode control and digital twin technology to develop a sensorless control model for hub motors. The proposed approach overcomes the limitations of traditional methods, such as the inability to pre-evaluate parameter changes and the lack of multidimensional monitoring and interaction analysis. The constructed model enables real-time simulation that closely reflects actual motor behavior, allowing precise tuning and validation of control parameters. Simulation results show that the system achieves rapid response, robust performance under varying load and speed conditions, and superior adaptability compared to existing methods. These advancements highlight the potential of this approach for precise and robust motor control in robotics and autonomous vehicles.

关键词： hub motor position sensorless control SMO

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Direct decoupling current demodulation algorithm-based improved high-frequency rotating voltage injection method

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JOURNAL OF POWER ELECTRONICS 2024年第5期24卷 734-744页

作者： Mu, Yalu Liu, Jilong Mai, Zhiqin Fei, Xiao Fu, Kangzhuang PLA Naval Univ Engn Natl Key Lab Electromagnet Energy Wuhan Peoples R China Southeast Univ Sch Elect Engn Nanjing Peoples R China

In the permanent magnet synchronous motor (PMSM) high-frequency (HF) rotating voltage injection method, a current demodulation process is usually used to improve the rotor position estimation accuracy. Current demodulation is usually realized by the synchronous frame high-pass filter (SFHF) algorithm. However, the current demodulation process is complicated, and the position estimation error changes with the rotation speed. To this end, an improved HF rotating voltage injection method based on the direct decoupling (DD) current demodulation algorithm is proposed. This method takes into account the comprehensive matching optimization of both the position error cancelation compensation and the current demodulation simplification. In addition, it completely solves the problems of insufficient position estimation accuracy and complex algorithm implementation. Finally, a three-phase PMSM is taken as the research object to verify the effectiveness of the proposed method.

关键词： Permanent magnet synchronous motor High-frequency rotating voltage injection method Current demodulation position sensorless control Fundamental modulation

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Commutation Point Optimization Method for sensorless BLdc Motor control Using Vector Phase Difference of Back EMF and Current

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IEEE-ASME TRANSACTIONS ON MECHATRONICS 2024年第1期29卷 423-433页

作者： Zhang, Haifeng Deng, Lirong Li, Haitao Zheng, Shiqiang Jin, Hao Chen, Baodong Beihang Univ Sch Instrumentat & Optoelect Engn Key Lab Ultraweak Magnet Field Measurement Technol Minist Educ Beijing 100191 Peoples R China Beihang Univ Beijing Engn Res Ctr High Speed Magnet Suspended M Beijing 100191 Peoples R China Beihang Univ Ningbo Inst Technol Zhejiang Engn Res Ctr Precis Electromagnet Control Ningbo 315800 Peoples R China Beihang Univ Hangzhou Innovat Inst Zhejiang Prov Key Lab Ultraweak Magnet Field Space Hangzhou 310051 Peoples R China

Commutation error is a crucial factor that reduces the efficiency of brushless dc (BLdc) motors. This article presents a commutation point optimization method for a sensorless BLdc motor. First, the sources of commutation error under position sensorless control are analyzed, and a conclusion is drawn that the phase difference between the back electromotive force vector and phase current vector equals the total commutation error. Second, a fundamental waveform extractor is used to eliminate the influence of harmonics on the equivalent commutation error. Third, the phase difference of the fundamental waveforms is extracted by a combined phase-locked loop, and the real-time commutation error is obtained consequently. Finally, accurate commutation is achieved by compensating for the phase difference, and experimental results on a reaction flywheel prototype evaluate the presented method.

关键词： Brushless dc (BLdc) motor commutation point optimization high-precision commutation position sensorless control

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sensorless control of IPMSM in Zero- and Low-Speed Regions Using Dual Random High-Frequency Square-Wave Voltage Injection to Reduce Audible Noise

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IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 2024年第10期71卷 11864-11875页

作者： Zhang, Peiran Wang, Shanming Li, Yituo Tsinghua Univ Dept Elect Engn State Key Lab Control & Simulat Power Syst & Gene Beijing 100084 Peoples R China

To accurately estimate the rotor position of an interior permanent magnet synchronous motor (IPMSM), high-frequency square-wave voltage injection (HFSVI) method has been widely used in position sensorless IPMSM drives at zero-low speed domain. However, dominant HFSVI harmonics and PWM harmonics will generate audible HF noises, which limits the practical application of the HFSVI method. Therefore, a dual random scheme proposed in this article simultaneously performs random phase signal injection (RPSI) and random N-state space vector modulation with nine segments (RNSVM9) to significantly disperse HFSVI harmonics and PWM harmonics. Since the HFSVI signal and PWM scheme are ultimately reflected on the three-phase output pulses, this article applies two-dimensional Fourier analysis to the output pulses. The principle of HF harmonics cancellation is intuitively explained by extracting the harmonic dispersion coefficient from the derivation results. Mathematical analysis shows that the proposed RPSI-RNSVM9 scheme can significantly disperse HFSVI harmonics and PWM harmonics at the same time. Finally, experimental results verify that RPSI-RNSVM9 significantly disperses all HF harmonics and has a smooth spectrum.

关键词： High-frequency (HF) harmonics dispersion high-frequency square-wave voltage injection (HFSVI) interior permanent magnet synchronous motor (IPMSM) position sensorless control

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A Novel Vector Magnetic Circuit Based position Observer for IPMSM Drives Using High-Frequency Signal Injection

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IEEE TRANSACTIONS ON POWER ELECTRONICS 2024年第1期39卷 1333-1342页

作者： Wang, Zheng Gao, Chenglei Gu, Minrui Cheng, Ming Southeast Univ Sch Elect Engn Nanjing 210096 Peoples R China

The accuracy of mathematical model of interior permanent magnet synchronous motors (IPMSMs) is of great importance for high-performance position sensorless control. However, the eddy-current reaction has not been modeled accurately in existing position sensorless control, in particular for the high-frequency (HF) voltage signal injection based position sensorless control. In this article, a novel HF signal injection based position sensorless control method is proposed for IPMSMs under the low-speed region. The key is to design a new HF position observation model of IPMSM with the vector magnetic circuit. By incorporating the magductance in magnetic circuit, the eddy-current reaction can be taken into account effectively in the proposed HF position observation model for IPMSMs. On this basis, the perturbation items due to eddy-current reaction in HF position observer are revealed and compensated to improve the accuracy of position estimation. Finally, the proposed HF signal injection based position sensorless control strategy is verified by experiments on an IPMSM drive platform.

关键词： sensorless control Observers Magnetic circuits Voltage control Rotors Iron Stators Eddy-current reaction high-frequency (HF) square-wave voltage injection interior permanent magnet synchronous motor (IPMSM) magductance position sensorless control

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A Novel IPMSM Model for Robust position sensorless control to Magnetic Saturation

A Novel IPMSM Model for Robust Position Sensorless Control t...

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International Power Electronics Conference

作者： Atsushi Matsumoto Masaru Hasegawa Shinji Doki Department of Electrical Engineering and Computer Science Nagoya University Department of Electrical Engineering Chubu University

ISBN: (纸本)9781479927067

This paper presents a novel interior permanent synchronous motors (IPMSMs) model for position sensorless control. The proposed model has robustness with respect to magnetic saturation. Furthermore, this model can approximately estimate the maximum torque control (MTC) frame, which is possible to realize simple and robust sensorless control system. In addition, the sensitivity of inductance parameters in this model has also been discussed. Moreover, a position sensorless control system based on this model has been shown.

关键词： IPMSM position sensorless control Magnetic Saturation Maximum Torque Per Ampere control

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Hybrid Active-Flux and Arbitrary Injection position sensorless control of Reluctance Synchronous Machines

Hybrid Active-Flux and Arbitrary Injection Position Sensorle...

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International Symposium on Power Electronics, Electrical Drives, Automation and Motion

作者： Francois J. W. Barnard Wikus T. Villet Maarten J. Kamper Department of Electrical & Electronic Engineering University of Stellenbosch

ISBN: (纸本)9781479947485

A new hybrid position sensorless control method for reluctance synchronous machine drives is presented in this paper. The active-flux and arbitrary injection position estimation techniques are combined for the first time in this hybrid controller. The controller switches between estimation techniques depending on speed and load. A hysteresis region is implemented with phase-locked loop synchronisation for dynamic and stable changeover between estimators. Implementation of the active-flux method at high loads allows for extended sensorless torque capabilities at high speed.

关键词： position sensorless control Hybrid controller Reluctance Synchronous Machine Drives

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Noise Reduction Method by Injected Frequency control for position sensorless control of Permanent Magnet Synchronous Motor

Noise Reduction Method by Injected Frequency Control for Pos...

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International Power Electronics Conference

作者： Shun Taniguchi Kazuya Yasui Kazuaki Yuki TOSHIBA Corporation

ISBN: (纸本)9781479927067

This paper proposes a novel noise reduction method by injected frequency control for position sensorless control of permanent magnet synchronous motor (PMSM). The proposed method reduces acoustic noise caused by injected high-frequency voltage without reducing the accuracy of rotor position estimation. The proposed method is verified by numerical simulations and experiments using a 0.8kW-PMSM.

关键词： Permanent Magnet Synchronous Motor position sensorless control Acoustic Noise Random PWM

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Design and control of an Analog Optical Switch Based on the Coupling of an Electrothermal Actuator and a Mass-Spring System

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IEEE-ASME TRANSACTIONS ON MECHATRONICS 2023年第5期28卷 2517-2528页

作者： Dai, Jun Feng, Changlei Xie, Jin Gao, Mingyuan Zhen, Tao Beijing Inst Technol Sch Mechatron Engn Beijing 100081 Peoples R China China Acad Engn Phys Inst Elect Engn Mianyang 621999 Peoples R China Southwest Univ Coll Engn & Technol Chongqing 400716 Peoples R China Australian Natl Univ Coll Engn & Comp Sci Canberra ACT 2601 Australia

Extending the analog output function has become an important trend in current MEMS optical switches. The electrothermal actuator is a potential candidate for realizing the analog optical switch since the output displacement can be continuously controlled throughout its driving range. However, since most existing micromirrors employ the out-of-plane motion, which is directly driven by the actuator, the design flexibility is limited and the temperature effect cannot be ignored. In this article, an analog optical switch is designed based on the coupling of an electrothermal actuator, a mass-spring system, and a sidewall reflective optical path. The in-plane reciprocating motion of the sidewall reflection micromirror is realized through the coupling, with the load analysis of the optical switch being significantly simplified. A temperature decrease as high as 305.5 K can be achieved by the integration at an applied voltage of 15 V. The dynamic coupling mechanism is well explained by a multibody electro-thermal-mechanical model. Furthermore, a position sensorless control scheme is proposed to realize the analog output function and anti-interference of the coupling optical switch. The linear analog output is presented throughout the micromirror's displacement of 0-90.57 mu m. We believe that this work is significant for providing a novel functional device in intelligent optical window, laser ignition system, optical neural computing, etc.

关键词： Optical switches Optical sensors Couplings Optical coupling Electrothermal actuators Actuators Microactuators Analog output in-plane motion optical switch position sensorless control temperature effect

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