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A neural network-based commutation optimization strategy and drive system design for brushless dc motor

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High Technology Letters 2021年第4期27卷 448-453页

作者： Liu Yuxiang Yao Zhaolin Yuan Fang Liu Ming Li Xiang Zhang Xu State Key Laboratory on Integrated Optoelectronics Institute of SemiconductorsChinese Academy of SciencesBeijing 100083P.R.China

An optimized commutation method based on backpropagation(BP)neural network is proposed to resolve the low stability and high-power consumption caused by inaccurate commutation point prediction in conventional commutation strategy during acceleration and *** article also builds a complete brushless dc motor drive system based on the GD32F103 micro control unit(MCU),with an Artix-7 XC7A35T field programmable gate array(FPGA)to meet the performance requirements of neural network calculation for real-time motor commutation *** results show that the proposed optimization strategy can effectively improve the system stability during system acceleration and deceleration,and reduce the current spikes generated during speed *** system power consumption is reduced by about 11.7%on average.

关键词： brushless dc motor senseless control back electromotive force neural network hardware implantation field programmable gate array(FPGA)

High temperature brushless dc motor system and its operation mode control

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Journal of Harbin Institute of Technology(New Series) 2001年第4期8卷 320-323页

作者：邹继斌胡建辉徐永向 Dept. of Elec. Eng. Harbin Inst. of Technol. Harbin 150001 China

The high temperature (175 ℃) operation of a motor spells out special requirements for control algorithms, materials and elements. The stability of motor characteristic is guaranteed by the digital control strategy. Constant velocity operation is achieved by phase locked loop (PLL), and constant power operation is achieved by a current restricting circuit. A motor for constant speed and constant power operation has been built and the speed control system is tuned by MATLAB simulation. Experimental and simulation results for operation mode control of brushless dc motor are presented.

关键词： brushless dc motor high temperature PLL PWM

Research and Design of Electric Vehicle Controller Based on brushless dc motor 36

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Research and Design of Electric Vehicle Controller Based on ...

第36届中国控制会议

作者： Junhui Cheng Chengling Lu Gang Zhang Congbing Wu Yourui Huang School of Electrical and Optoelectronic Engineering West Anhui University School of Electrical and Information Engineering Anhui University of Science and Technology

ISBN: (纸本)9781538629185

This article deals how to design a complete e-bike controller system by STM32 chip *** circuit is mainly used for controlling the brushless dc motor,when we design the power inverted circuit,we usually check resistors voltage to detect the current and then send the data to CPU to complete the current closed loop ***,when the controller is used in high power levers,the heavy current will cause some power *** order to improve this problem,we can detect the current according to the MOSFET tube resistance,and then we put the signal into the differential amplifier to make the signal *** we may make the controller available on aluminum base board.

关键词： e-bike controller system brushless dc motor MOSFET tube resistance sampling aluminum base board

Fast and accurate speed regulation of brushless dc motor servo systems via robust composite nonlinear control 36

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Fast and accurate speed regulation of brushless DC motor ser...

第36届中国控制会议

作者： Yubin Zhang Guoyang Cheng Jin-gao Hu Yanwei Huang College of Electrical Engineering and Automation Fuzhou University

ISBN: (纸本)9781538629185

A parameterized design of speed servo controller for brushless dc motors is presented based on a robust composite nonlinear control *** servo controller consists of a linear control part for achieving fast response,a nonlinear feedback part for suppressing the overshoot,and a disturbance compensation mechanism for erasing the steady-state error.A reduced-order extended state observer is adopted to estimate the un-measurable state variables and unknown *** are first carried out in MATLAB/Simulink,followed by real-time experiment using a TMS320F28335 digital signal controller *** results confirm that the proposed control scheme can achieve fast,smooth and accurate tracking of target speed,and has a good performance robustness against the load disturbance and parameter variations.

关键词： brushless dc motor robust control nonlinear control observer disturbance rejection

PWM Control Mode for Four-Quadrant Operation of brushless dc motor 36

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PWM Control Mode for Four-Quadrant Operation of Brushless DC...

第36届中国控制会议

作者： Xuliang Yao Yan Zhang Xiaoming Jiang Harbin Engineering University

ISBN: (纸本)9781538629185

brushless dc motor has been becoming more popular in industry,electric and aerospace applications,making the control for four-quadrant operation of brushless dc motor greatly *** paper presents pulse width modulation（PWM）control mode for four-quadrant operation of brushless dc motor,which can realize both motoring and braking operation at the same rotation *** on the forward motoring and braking operation,current process and torque ripple are analyzed during non-commutation and commutation *** simulation results in MATLAB verify the correctness of the theoretical analysis and the feasibility of the proposed PWM control mode.

关键词： brushless dc motor PWM control mode four-quadrant operation torque ripple

brushless dc motor Control via Fuzzy Systems with Variable Contraction-expansion factors

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Brushless DC Motor Control via Fuzzy Systems with Variable C...

第30届中国控制与决策会议

作者： Hong Zhao Peng Luo Ning Wang Zhongjiu Zheng Derun Zhao Marine Electrical Engineering College Dalian Maritime University

The brushless dc motor（BLdcM） is non-linear, multi-variable, tightly coupled. It has been widely researched in the field of motor control. However, the traditional PI controller method is vulnerable to uncertain factors in the BLdcM drive system, for instance, load disturbance and the motor parameters change, which have an impact on obtaining satisfactory control effects. This paper proposes an adaptive variable universe fuzzy PI compound control strategy with contraction-expansion factors. The self-adjustment of PI control parameters and control rules can be acquired by using variable universe adaptive fuzzy control. Finally, a double closed-loop control system of the BLdcM based on the adaptive variable universe fuzzy control algorithm is designed in Matlab/Simulink environment. Simulation results show that the BLdcM drive system based on the proposed method has faster dynamic response, stronger robustness and anti-interference ability.

关键词： brushless dc motor Fuzzy PI Variable Universe Contraction-expansion Factor

Anti-reverse rotation startup method for sensorless brushless dc motor

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Journal of Southeast University(English Edition) 2009年第2期25卷 199-202页

作者：林明耀张智尧林克曼周谷庆东南大学电气工程学院南京210096

In order to start up the brushless dc motor （BLdcM） without reverse rotation and smoothly switch the running state of the motor, a novel startup and smoothly switching method for a sensodess BLdcM is presented. Based on the saturation effect of the stator iron, six short voltage pulses are applied to determine the initial rotor position and the rotor can be found within 60°. After that, a series of short and long voltage pulses are used to accelerate the motor and the variation of the response current is utilized to detect the rotor position dynamically. When the motor reaches a certain speed at which the back-electromotive force （EMF） method can be applied, all the power devices are turned off and the running state of the motor is smoothly switched at the moment determined by the relationship between the terminal voltage waveform and the commutation phases. The experimental results verify the feasibility and validity of the proposed method.

关键词： brushless dc motor sensorless control anti-reverse rotation back-electromotive force switch

New Method to Restrain Pumping Voltage of Braking Procedure for brushless dc motor of Electric Armored Vehicle

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Journal of Beijing Institute of Technology 2002年第2期11卷 137-141页

作者：郑慕侨宋小庆孙德福臧克茂北京理工大学车辆与交通工程学院北京100081 装甲兵工程学院控制工程系北京100072

In order to restrain the high pumping voltage of braking procedure which is harmful to the system of electric armored vehicle. Based on the analysis of pumping voltage of the braking procedure, the relation between pumping voltage and PWM ratio is derived and a new digital control method to restrain the pumping voltage by changing PWM ratio is put forward. Because the capacitance is decreased effectively, the volume of controller is reduced and the performance to price ratio is improved. The results of computer simulation and experiment proved that this method is feasible and valid.

关键词： electrical armored vehicle brushless dc motor regenerative braking

Highly Effective brushless dc motor in Which Unidirectional Current Flows in

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Journal of Energy and Power Engineering 2010年第10期4卷 58-64页

作者： Y. Komatsu T.A. Amarsanaa Y. Araki S.A.K. Zawawi Department of Electrical and Electronic Engineering Ritsumeikan University Shiga Prefecture 525-8577 Japan

Authors developed a highly effective brushless dc motor with a simple operation principle. If the operation principle of the motor is simple, a drive circuit will also become simple and its production cost will be lower. From the above fact, Minato motor was noticed. In this motor, a unidirectional current flows in the electromagnets. In other words, unidirectional windings are used. In this motor, only strong repulsive force is utilized when a permanent magnet of a rotor and an electromagnet of a stator are adjacent. Hence, torque constant becomes higher and the efficiency of the motor is high. However, an effective value of the electromagnetic current increases because a large current flows in a short period. Therefore, copper loss increases and the efficiency of the motor decreases. In order to solve above defects, a new motor is proposed. From the experiment, it is clarified that the efficiency of the proposed motor is higher than that of the commercial motors.

关键词： brushless dc motor Minato motor repulsive force unidirectional current back-EMF.