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IEEE 21st International Power Electronics and Motion control Conference (PEMC)

作者： Mikami, Taiki Kawarazaki, Keitaro Hoshi, Nobukazu Tokyo Univ Sci Dept Elect Engn Chiba Japan

ISBN: (纸本)9798350385236;9798350385243

Several torque ripple suppression controls for interior permanent magnet synchronous motors have been explored due to undesired effects of torque ripple on mechanical systems, including increased vibration and noise. Two distinct controls exist for torque ripple suppression: a method utilizes a torque meter to measure the torque ripple and reduce it directly. Another method involves using a mathematical model to estimate the torque ripple and mitigate its effect. Additionally, position sensorless methods, such as extended induced voltage or adaptive control, have been proposed. However, research on torque ripple suppression control with position sensorless control remains limited. Then, this paper proposes a novel method to enhance position estimation accuracy using q-axis inductance estimation. Notably, the proposed method requires simple controller modification and pre-measurement data;it relies solely on pre-obtained data used in the torque ripple suppression control. Experimental results demonstrate that the proposed method achieves approximately a 40% reduction in 6th-order torque ripple.

关键词： Torque ripple suppression control position sensorless control PMSM

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A Current Self-Injection Based position sensorless control for DSEG With controlled Rectification

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IEEE TRANSACTIONS ON POWER ELECTRONICS 2022年第3期37卷 3308-3320页

作者： Wang, Kaimiao Zhou, Bo Zhou, Xingwei Wei, Jiadan Zhou, Zhenggui Nanjing Univ Aeronaut & Astronaut Coll Automat Engn Nanjing 210016 Peoples R China Hohai Univ Coll Energy & Elect Engn Nanjing 211100 Peoples R China Nanjing Univ Aeronaut & Astronaut Coll Energy & Power Engn Nanjing 210016 Peoples R China

The controlled rectification method with positon sensor can effectively improve the output power of the doubly salient electromagnetic generator (DSEG), but weakens the advantage of no position sensor for the traditional DSEG with uncontrolled rectification. To solve this problem, a current self-injection based position sensorless control method is proposed for DSEG with H-bridge semi-controlled rectifier (HBSCR) in this article. Based on the operation principle of DSEG and HBSCR, the position estimation method is developed from the positive zero-crossing point of inductive electromotive force (EMF), which is indirectly observed through the test current self-injected by the inductive EMF. According to the relationship between generation current and test current, a test current self-injection method without presetting injection width is put forward, and the corresponding sensorless control strategy is established with the combination of angular position semi-control. Then, the compensation strategy is further presented to improve the accuracy of the proposed position estimation method. Finally, the simulations and experiments are implemented on a three-phase DSEG to validate the feasibility and correctness of the proposed sensorless control strategy.

关键词： Rotors Windings Rectifiers sensorless control Inductance Estimation Generators controlled rectification current self-injection doubly salient electromagnetic generator (DSEG) position sensorless control

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position sensorless control of Switched Reluctance Motors Using Reference and Virtual Flux Linkage With One-Phase Current Sensor in Medium and High Speed

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IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 2020年第4期67卷 2595-2606页

作者： Ding, Wen Song, Kaidi Xi An Jiao Tong Univ Sch Elect Engn Xian 710049 Peoples R China

This paper presents a novel position sensorless control for 64 switched reluctance motors (SRMs) using only one-phase current sensor in medium and high speed. In order to eliminate phase voltage sensors, a virtual phase voltage is established to replace the real-time phase voltage in the whole conduction cycle, so as to calculate the phase flux linkage which is called virtual flux linkage. A nonlinear model is utilized to estimate the reference flux linkage-curve of any rotor position. With only one-phase current sensor, the determination of turn off angle position and phase commutation position is achieved by the comparison of reference flux linkage and virtual flux linkage. The speed estimation is performed by two reference flux linkage-current curves at particular rotor positions. Based on the obtained turn off pulse of the present phase and the turn on pulse of next phase, the remaining trigger pulse signals of three phases are derived from a delay-time strategy. The proposed scheme requires only one-phase current sensor, without any pulse injection or complicated decoupling algorithm, achieving a simple and cost-effective drive. Simulations and experiments are carried out on a 64-pole prototype SRM drive system to verify the correctness and effectiveness of the proposed sensorless control scheme.

关键词： Couplings Reluctance motors Rotors sensorless control Estimation Inductance Delay-time strategy one-phase current sensor position sensorless control reference flux linkage switched reluctance motor (SRM) virtual flux linkage

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position sensorless control of Synchronous Reluctance Machines Based on Magnetic Saturation Depending on Current Phase Angles

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IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS 2020年第3期56卷 2171-2179页

作者： Kojima, Tetsuya Suzuki, Toshiki Hazeyama, Moriyuki Kayano, Shinsuke Mitsubishi Electr Corp Adv Technol R&D Ctr Amagasaki Hyogo 6618661 Japan Mitsubishi Electr Corp Himeji Works Himeji Hyogo 6700993 Japan

position sensorless control of synchronous reluctance machines is not easy due to nonlinear correlations caused by extensive magnetic saturation. This article investigates stability of a conventional saliency-based method and, for the first time, shows that the method becomes unstable at high torque with high magnetic saturation not due to cross-coupling effect itself but due to expansion of the cross-coupling effect through feedback of the estimated position. This instability occurs even when neither disappearance of the saliency nor reversal of the estimated dand q- axes arises. A novel method to overcome this instability is proposed, which utilizes magnetic saturation depending on current phase angles. The proposed method was verified by simulations and experiment using a prototype machine. The results demonstrated that the proposed method achieved stable sensorless operation at the maximum torque, and thus, surpassed the conventional saliency-based method, the feasible torque of which was limited to 60% of the maximum for the prototype machine.

关键词： High frequency sensorless control Stators Rotors Torque Couplings Saturation magnetization Cross-coupling effect position sensorless control synchronous reluctance machine (SynRM)

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Performance analysis of position sensorless control of antagonistic shape memory alloy actuators

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SMART MATERIALS AND STRUCTURES 2024年第12期33卷 125033-125033页

作者： Bai, Fengqiang Zhang, Xiangjun Xu, Dianguo Harbin Inst Technol Sch Elect Engn & Automat Harbin Peoples R China

This paper presents a comprehensive performance analysis of position sensorless control of antagonistic shape memory alloy actuators (ASMAA), focusing on enhancing the sensorless position sensing capabilities and servo performance. The mechanisms and influencing factors of ASMAA self-sensing characteristics are comprehensively analyzed. A self-sensing model framework based on the constitutive model of ASMAA is proposed, and a self-sensing model based on differential resistance feedback is developed. An experimental platform based on the ASMAA motion mechanism is established to test and analyze SMA wires of two different materials under various pretension force conditions. The experimental results show that the antagonistic configuration mitigates hysteresis and improves linearity. A simple polynomial fitting is employed to establish the resistance-displacement relationship, achieving good accuracy with minimal residuals. The system identification is employed to avoid the parameter complexity and time-varying in the constitutive model. Based on the identified transfer function, a traditional PID controller is designed for position sensorless servo control. However, the inherent nonlinear hysteresis of ASMAA is difficult to suppress using a linear PID controller. Furthermore, a compound control strategy based on the Duhem model and PID controller is proposed, which utilizes the particle swarm optimization algorithm to identify the Duhem inverse model controller. Experimental results demonstrate that the compound controller significantly enhances position tracking accuracy and response speed compared to a standalone PID controller.

关键词： antagonistic shape memory alloy actuators position sensorless control system identification duhem inverse model particle swarm optimization

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Research on position sensorless control of Doubly Salient Electro-magnetic Generator Based on Phase Induced Electromotive Force 25

Research on Position Sensorless Control of Doubly Salient El...

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25th International Conference on Electrical Machines and Systems (ICEMS)

作者： Zhang, Minghui Zhou, Bo Wang, Kaimiao Huang, Jingchen Nanjing Univ Aeronaut & Astronaut Dept Elect Engn Nanjing Peoples R China

ISBN: (纸本)9781665493024

Compared with uncontrolled rectification power generation, doubly salient electro-magnetic generator (DSEG) controlled rectification power generation can effectively improve its power generation, but it needs to introduce a position sensor, which will increase the cost of the system and seriously threaten the stability of the whole system in bad environments. To solve this problem, this paper proposes a DSEG sensorless control method based on phase induced potential based on bridge converter topology, which extracts rotor position information from the negative zero crossing point of phase voltage. Finally, the method is validated on the 12 / 8 pole DSEG experimental platform, which proves the effectiveness of the proposed method.

关键词： doubly salient electromagnetic generator (DSEG) position sensorless control controlled rectification phase voltage

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Peak Current Detection Starting Based position sensorless control of BLDC Motor Drive for PV Array Fed Irrigation Pump

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IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS 2021年第3期57卷 2569-2577页

作者： Sen, Aryadip Singh, Bhim Indian Inst Technol Delhi Dept Elect Engn New Delhi 110016 India

The generation of exact commutation to start the permanent magnet brushless direct current (PMBLDC) motor in position sensorless control mode is the most challenging task. A peak current detection starting algorithm based wide speed range position sensorless control for solar photovoltaic array fed PMBLDC motor drive for the irrigation water pumping is presented here. This starting algorithm controls the exact starting commutation along with the peak staring current. An elimination of position sensor and current sensor for rotor position estimation makes the implemented drive compact and cost effective for agricultural application. The operation of the drive is first tested with simulation and the reliability is tested in the laboratory prototype as well as in compact industrial product prototype with cost-effective digital signal processor. The robustness of the system is verified with different simulation and test results at various operating conditions. The compact cost-effective solution fits perfect for low cost, demanding both irrigation and domestic water pumping.

关键词： Brushless DC motors DC motors Commutation Sensors Sensor arrays sensorless control Water pumps Incremental conductance (INC) maximum power point tracking (MPPT) algorithm peak current detection based starting permanent magnet brushless direct current (PMBLDC) motor drive position sensorless control water pumping

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position sensorless control for Triple Three-phase Permanent Magnet Synchronous Motor Based on Extended Electromotive Force Model 23

Position Sensorless Control for Triple Three-phase Permanent...

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23rd International Conference on Electrical Machines and Systems (ICEMS)

作者： Imai, Koji Valente, Giorgio Gerada, David Nagoya Univ Dept Informat & Commun Engn Chikusa Ku Furo Cho Nagoya Aichi Japan Univ Nottingham Fac Engn Nottingham England

ISBN: (纸本)9784886864192

Triple Three-phase Permanent Magnet Synchronous Motor is one of Multiphase Motors, which is strongly expected to be applied to many fields. Triple Three-phase Synchronous Motor drive systems, however, require position sensors whose risk, costs, and installation spaces are concerned. Therefore, position sensorless control for Triple Three-phase Motors is expected. This paper presents the EEMF model for the considered motors and verify its effectiveness through the simulation and the experiment.

关键词： Triple Three-phase Permanent Magnet Synchronous Motor position sensorless control EEMF observer SPMSM

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position sensorless control of Synchronous Reluctance Machines Based on Magnetic Saturation Depending on Current Phase Angles 23

Position Sensorless Control of Synchronous Reluctance Machin...

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13th International Conference on Electrical Machines (ICEM)

ISBN: (纸本)9781538624784

关键词： High frequency sensorless control Stators Rotors Torque Couplings Saturation magnetization Cross-coupling effect position sensorless control synchronous reluctance machine (SynRM)

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Discrete-Time position sensorless Current control for Interior Permanent Magnet Synchronous Motors Based on Modified Back-Electromotive Force

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IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS 2024年第2期12卷 2017-2026页

作者： Liu, Ye Lu, Mingwei Jiang, Wen Zhang, Weiqiu Nanjing Normal Univ Sch Elect & Automat Engn Nanjing 210046 Peoples R China Qingdao Univ Coll Elect Engn Qingdao 266071 Peoples R China Nanjing Univ Aeronaut & Astronaut Ctr More Elect Aircraft Power Syst Nanjing 211106 Peoples R China

A discrete-time sensorless current control method is proposed for the interior permanent magnet synchronous motor (IPMSM) in this article. Due to the inconsistent $dq$ -axis inductance of IPMSMs, the design of the discrete-time current control method and sensorless control method is complicated. The control methods are therefore widely designed in the continuous-time domain, while the performance of these continuous-time methods is poor. In the proposed scheme, the current regulator is designed in the discrete-frequency domain based on an entirely discretized state-space model, which improves the dynamic and steady-state performance of the current control system. In terms of the electrical angle estimation method, the continuous-time model-based method leads to a significant estimation error. To improve the accuracy of the estimated back-EMF, a state-space model with a modified back-EMF (MBEMF) model is derived in the discrete-time domain. Then the observer of MBEMF and a phase-locked loop (PLL) with phase compensation are proposed based on the discrete-time state-space model. The proposal improves the accuracy of the estimated electrical angle. The proposal is designed directly in the discrete-time domain, which avoids significant performance deterioration in digital implementations. Finally, the proposed method is implemented on an IPMSM drive test rig to verify its improvement.

关键词： Observers Rotors Regulators Current control sensorless control Phase locked loops Proposals discrete-time domain interior permanent magnet synchronous motor (IPMSM) position sensorless control

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