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Improved position signal demodulation method for sensorless control based on HF sinusoidal pulsating voltage injectionInspec keywordsOther keywords

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IET ELECTRIC POWER APPLICATIONS 2020年第14期14卷 2780-2787页

作者： Liu, Jiali Zhang, Yongchang Yang, Haitao North China Univ Technol Inverter Technol Engn Res Ctr Beijing Beijing 100144 Peoples R China North China Elect Power Univ Sch Elect & Elect Engn Beijing 102206 Peoples R China

High frequency (HF) sinusoidal pulsating voltage injection is a reliable method for position sensorless control in low speed range. For HF voltage injection based methods, position signal demodulation plays a key role. However, the conventional sinusoidal demodulation suffers from long settling time and limited bandwidth because of requirement of a low-pass filter (LPF) to suppress HF harmonics in the estimated position. Additionally, the overall performance is deteriorated due to the characteristic of linear demodulation. To address these issues, the cube of q-axis HF current instead of itself is used as the carrier of position estimation error. In this way, the input variable for phase-locked loop (PLL) is the cube function with respect to the position deviation. During steady state, the equivalent gain in PLL is very small and thus the estimated position is non-sensitive against high-frequency harmonics, thereby the LPF is no longer required in the proposed method. While during dynamic process, the equivalent gain is increased leading to a fast converging rate when compared with the conventional method. The stability and dynamic performance are theoretically analysed by the magnitude-frequency diagram. The superiority of the proposed method was experimentally justified and the obtained results show that both steady-state and dynamic performance are improved when compared with the prior art.

关键词： demodulation machine control demodulators permanent magnet motors low‐ pass filters sensorless machine control position control phase locked loops voltage control conventional sinusoidal demodulation suffers long settling time limited bandwidth low‐ pass filter LPF linear demodulation position estimation error phase‐ locked loop PLL cube function position deviation equivalent gain high‐ frequency harmonics stability dynamic performance magnitude– frequency diagram improved position signal demodulation method HF sinusoidal pulsating voltage injection position sensorless control low speed range HF voltage injection based methods

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position sensorless control of IPMSMs based on a novel flux model suitable for maximum torque control

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ELECTRICAL ENGINEERING IN JAPAN 2013年第3期184卷 55-66页

作者： Matsumoto, Atsushi Hasegawa, Masaru Matsui, Keiju Nagoya Univ Nagoya Aichi 4648601 Japan Chubu Univ Kasugai Aichi 487 Japan

In this paper, a novel position sensorless control method for interior permanent magnet synchronous motors (IPMSMs) that is based on a novel FLux model suitable for maximum torque control has been proposed. Maximum torque per ampere (MTPA) control is often utilized for driving IPMSMs with the maximum eciency. In order to implement this control, generally, the accurate motor parameters are required. However, the inductance varies dramatically because of magnetic saturation, which has been one of the most important problems in recent years. Therefore, the conventional MTPA control method fails to achieve maximum eciency for IPMSMs because of parameter mismatches. In this paper, first, a novel FLux model has been proposed for realizing the position sensorless control of IPMSMs, which is insensitive to Lq. In addition, in this paper it is shown that the proposed FLux model can approximately estimate the maximum torque control (MTC) frame, which is a new coordinate aligned with the current vector for MTPA control. Next, in this paper, a precise estimation method for the MTC frame has been proposed. By this method, highly accurate maximum torque control can be achieved. A decoupling control algorithm based on the proposed model is also addressed in this paper. Finally, some experimental results demonstrate the feasibility and effectiveness of the proposed method. (c) 2013 Wiley Periodicals, Inc. Electr Eng Jpn, 184(3): 5566, 2013;Published online in Wiley Online Library (***). DOI 10.1002/eej.22380

关键词： IPMSM position sensorless control maximum torque per ampere control FLux model

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Quick-Response Technique for Simplified position sensorless Vector control in Permanent Magnet Synchronous Motors

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IEEJ JOURNAL OF INDUSTRY APPLICATIONS 2015年第5期4卷 582-588页

作者： Tobari, Kazuaki Iwaji, Yositaka Hitachi Ltd Hitachi Res Lab 7-1-1 Omika Cho Hitachi Ibaraki 3191292 Japan

We developed a quick-response technique for simplified vector control without using position sensors for permanent magnet synchronous motor drives. Our original simplified vector control has neither current control nor speed control, and the speed estimation response is limited by motor constants. We developed a highly stable method that equivalently increases the damping ratio, which is related to motor constants by the control side. Time domain simulations and experiments were perfomed to demonstrate the effectiveness of the proposed method.

关键词： permanent magnet synchronous motor simplified vector control position sensorless control damping ratio control

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position sensorless control Method at Zero Speed Region for Permanent Magnet Synchronous Motors Based on Block Commutation Drive

Position Sensorless Control Method at Zero Speed Region for ...

引用

IEEE International Electric Machines and Drives Conference (IEMDC)

作者： Iwaji, Y. Aoyagi, S. Takahata, R. Tobari, K. Suzuki, I. Hano, M. Hitachi Ltd Hitachi Res Lab Hitachi Ibaraki 3191292 Japan

ISBN: (纸本)9781467349741;9781467349758

A new position sensor-less method has been developed for permanent magnet synchronous motor (PMSM) drives in zero speed regions. This method utilizes the induced voltage caused by magnetic saturation (IVMS) of PMSM. The rotor position can be detected by IVMS. Furthermore, we introduce a bi-polar pulse modulation to the zero-speed region. By this modulation, both the normal and reversal direction IVMS can be detected and the bi-direction drive achieved. The principle of the proposed method and the experimental results are discussed in this paper.

关键词： permanent magnet synchronous motor magnetic saturation block commutation drive position sensorless control

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Design of buck-type current source inverter fed brushless DC motor drive and its application to position sensorless control with square-wave current

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IET ELECTRIC POWER APPLICATIONS 2013年第5期7卷 416-426页

作者： Chen, Hung-Chi Huang, Hung-He Natl Chiao Tung Univ Dept Elect & Comp Engn Hsinchu Taiwan

Owing to the widely used brushless DC motors (BDCMs) in high-efficiency applications, many position sensorless control methods based on voltage source inverters had been developed in the literature. Recently, current source inverters (CSIs) are receiving more and more attention because of their inherent short-circuit protection characteristics. But no position sensorless control for buck-type CSI with square-wave current had been found in the literature. In this study, the buck-type CSI-fed BDCM drive is designed and its application to the square-current position sensorless control is first proposed. The provided simulation and experimental results verify the effectiveness of the proposed CSI-based position sensorless control.

关键词： brushless DC motors DC motor drives invertors position control short-circuit currents sensorless machine control position sensorless control square-wave current buck-type CSI-fed BDCM drive brushless DC motors high-efficiency applications position sensorless control methods voltage source inverters short-circuit protection characteristics short-circuit protection characteristics buck-type current source inverter inverter fed brushless DC motor drive design

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Simultaneous Online Inductance Identification and position sensorless for PMSM at Low Speed Based on Arbitrary Amplitude Square-Wave Injection

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IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS 2025年第1期13卷 576-588页

作者： Xu, Shihan Zhu, Yuan Meng, Ling Guo, Yingqing Xu, Shihua Yang, Kewen Tongji Univ Dept Sch Automot Studies Shanghai 201804 Peoples R China Jiangling Motors Co Ltd Nanchang 330200 Jiangxi Peoples R China

High-frequency (HF) injection is widely adopted for inductance identification or position sensorless control, but few studies have achieved both functions at the same time. In this article, both functions are achieved simultaneously using the same injection sequence. This article analyzes the features of the conventional inductive reactance model with cross-coupling effects. Then, the HF square-wave voltage with arbitrary amplitude is presented. Later, the separation paradigm for self-excited and coupled-excited currents is proposed, alongside an online cross-coupling angle calculation method. To achieve simultaneous online inductance identification and position estimation, the sensorless control object is corrected using a look-up table. As a result, the dq-axis incremental inductances and cross-coupling incremental inductance estimators are performed without offline cross-coupling angle calibration values. The proposed method is validated on both the simulation platform and the drive motor bench. Different operating conditions illustrate the effectiveness of inductance identification and sensorless control.

关键词： High-frequency (HF) square-wave injection online inductance identification online inductance identification permanent magnet synchronous motor (PMSM) permanent magnet synchronous motor (PMSM) position sensorless control position sensorless control position sensorless control

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Relative Speed Compensation for sensorless control of Magnetic Screw Motor Based on an Improved Pulsating Current Injection Method

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IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION 2025年第1期11卷 121-134页

作者： Zhang, Jiahao Liu, Zhengmeng Liu, Guohai Chen, Qian Jatskevich, Juri Zhao, Meiling Qiu, Xianqun Farahat, Abdallah Jiangsu Univ Sch Elect & Informat Engn Zhenjiang 212013 Peoples R China Jiangsu Key Lab Drive & Intelligent Control Elect Zhenjiang 212013 Peoples R China Univ British Columbia Dept Elect & Comp Engn Vancouver BC V6T 1Z4 Canada Nantong Univ Sch Elect Engn & Automat Nantong 226019 Peoples R China Yangzhou Univ Coll Elect Energy & Power Engn Yangzhou 225127 Peoples R China

The magnetic screw motor (MSM) drive systems often require both a rotary encoder and a linear encoder for their precise positioning, which makes the design of such systems very challenging and costly. This article proposes a novel position sensorless control strategy. First, an improved pulsating current injection (IPCI) sensorless control is proposed to replace the rotary encoder. This method associates the amplitude of the injection signal with the q-axis current by introducing a transformation matrix. In the proposed method, the amplitude of the injection signal increases with the load/speed variation, which enhances the rotary speed estimation accuracy in transients. Meanwhile, when the motor operates in a steady state, the amplitude of the injection signal is maintained in a low range, which reduces the audible noise. Second, the linear encoder is eliminated using a relative speed compensation based on a lookup table (LUT) method. The relative speed under different linear speeds can be obtained and tabulated from several experimental tests. The presented experimental results verify the proposed method and its performance.

关键词： Fasteners sensorless control Motors Hafnium Rotors Magnetic levitation Permanent magnets Magnetic screw motor (MSM) position sensorless control pulsating current injection speed estimation accuracy

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sensorless control of IPMSM Equipped With LC Sinusoidal Filter Based on Full-Order Sliding Mode Observer and Feedforward QPLL

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IEEE TRANSACTIONS ON POWER ELECTRONICS 2024年第7期39卷 8072-8085页

作者： Wu, Xiang Li, Chao Zhang, Yuyang Chen, Shuo Ma, Zhixun Han, Yaofei Zhang, Xiao Tan, Guojun China Univ Min & Technol Sch Elect Engn Xuzhou 221008 Peoples R China Harbin Inst Technol Sch Elect & Engn Harbin 150001 Peoples R China Xi An Jiao Tong Univ Xian 710049 Peoples R China Tongji Univ Natl Maglev Transportat Engn R&D Ctr Shanghai 200070 Peoples R China

A position sensorless control of interior permanent synchronous motor (IPMSM) equipped with LC sinusoidal filter based on the full-order sliding mode observer (FOSMO) and feedforward quadrature phase-locked loop (FQPLL) is proposed in this article. The FOSMO is designed to estimate stator currents, stator voltages, and extended back electromotive forces of IPMSM. To enhance the rapidity of the convergence and accuracy of the estimation of the FOSMO, an adaptive gain matrix is designed by adopting equivalent control theory and Lyapunov stability theory. In order to suppress the dc deviation in the position estimation error under acceleration or deceleration operations, a robust and anti-interference feedforward loop without differentiator and motor parameters is added to the conventional quadrature phase-locked loop. The parameter design method of the proposed FQPLL is studied by analysis of the frequency characteristics. The experimental results verify the effectiveness of the proposed strategy.

关键词： Observers Filtering theory Estimation Motors Stators Rotors Feedforward systems Feedforward quadrature phase-locked loop full-order sliding mode observer (FOSMO) interior permanent synchronous motor (IPMSM) position sensorless control

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

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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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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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