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Extracting DC bus current information for optimal phase correction and current ripple in sensorless brushless DC motor drive

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Journal of Zhejiang University-Science C(Computers and Electronics) 2014年第4期15卷 312-320页

作者： Zu-sheng HO Chii-maw UANG Ping-chieh WANG Department of Electronic Engineering I-Shou University

brushless DC motor(BLDCM) sensorless driving technology is becoming increasingly established. However, optimal phase correction still relies on complex calculations or algorithms. In finding the correct commutation point, the problem of phase lag is introduced. In this paper, we extract DC bus current information for auto-calibrating the phase shift to obtain the correct commutation point and optimize the control of BLDC sensorless driving. As we capture only DC bus current information, the original shunt resistor is used in the BLDCM driver and there is no need to add further current sensor components. Software processing using only simple arithmetic operations successfully accomplishes the phase correction. Experimental results show that the proposed method can operate accurately and stably at low or high speed, with light or heavy load, and is suitable for practical applications. This approach will not increase cost but will achieve the best performance/cost ratio and meet market expectations.

关键词： brushless motors Electric motors Motor drives Phase control Phase estimation Sensorless control

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Rapid Prototyping and Validation of Mars 0913 brushless Motor to Develop Mild HEV

Rapid Prototyping and Validation of Mars 0913 Brushless Moto...

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2015中国汽车工程学会年会

作者： Mohamed Awadallah Peter Tawadros Nong Zhang University of Technology Sydney

We discuss a mild hybrid powertrain based on a solution placing a small electric motor behind the first reduction *** electric motor may be used for power supplementation,and is controlled in both power and *** the primary use of the motor is for torque-hole fill-in in an AMT-equipped *** motor is controlled to reduce clutch slip,and provide torque fill-in during gear *** paper will describe the real-time control and the validation of Mars 0913 BLDC *** validation process involves specific implementation techniques for model processing and interfaces in real-time with electrical hardware *** tools and interfaces necessary to that validation are also presented,and include KHB 12601 BLDC Kelly Controller,dSPACE MicroAutoBox II,for hybrid vehicle *** will include a design processes for handling real-time control using Simulink,DSPACE RTI＆Control Desk environment and finally,the validation based on Dynamometer testing to get all performance data of BLDC motor and mechanical parts as designed by *** paper is based on the technique of Rapid Controller Prototyping（RCP）.It is an efficient method for solving motor control problems such as *** this design,we connect the universal controller（MicroAutoBox）to the KHB *** interface signals are configured and then the two controllers are connected by Relays and CAN line according to the specifications of the real system.

关键词： automotive applications brushless motors control design hybrid systems motor drives permanent magnet motors

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