Transients of electrical and mechanical quantities of a brushless DC motor - computations, measurements

• Autorzy: Ciurys M. , Dudzikowski I.
• Języki publikacji: EN

Abstrakty

EN

The paper presents a method of computing electrical and mechanical variables of BLDC motors. It takes into account electrical, magnetic and mechanical phenomena in the power supply-converter-BLDC motor-load machine system. The solution to the problem is the so-called circuit-field method. The results determined with the use of time stepping finite element method were used as the parameters of equations of the developed mathematical model. Losses in the motor, losses in transistors and diodes of the converter as well as the actual back EMF waveforms, variable moment of inertia and variable load torque are accounted for. The designed laboratory stand and the test results are presented in the paper. The experimental verification shows the correctness of the developed method, algorithm and program. The developed computational method is universal with respect to different electromechanical systems with cylindrical BLDC motors. It can be applied to electromechanical systems with BLDC motors operating at constant but also variable load torque and moment of inertia.

Słowa kluczowe

EN

electrical machines; BLDC motors; permanent magnets; computations; measurements

PL

maszyna elektryczna; silnik bezszczotkowy; magnes trwały; silnik BLDC; obliczenia; pomiary

• Wydawca: Polish Academy of Sciences, Committee on Electrical Engineering
• Czasopismo: Archives of Electrical Engineering
• Rocznik: 2011
• Tom: Vol. 60, nr 1
• Strony: 23--34
• Opis fizyczny: Bibliogr. 6 poz., rys., tab.

Twórcy

autor

Ciurys M.

autor

Dudzikowski I.

• Institute of Electrical Machines, Drives and Measurements, Wroclaw University of Technology, Smoluchowskiego 19, 50-372 Wrocław,

Bibliografia

• [1] Ciurys M., Analysis of a BLDC motor operation at variable load on the example of a car starter. (In Polish), Wroclaw University of Technology, Institute of Electrical Machines, Drives and Measurements Report (PhD thesis), PRE Nr 4 (2009).
• [2] Chen J., Guo Y., Zhu J., Jin J., Performance analysis of a surface mounted permanent magnet brushless DC motor using an improved phase variable model. Industry Applications Conference, 42nd IAS Annual Meeting. Conference Record of the 2007 IEEE, pp. 2169-2174 (2007).
• [3] Gieras J.F., Permanent Magnet Motor Technology, Design and Applications. 3rd ed., CRC Press Taylor & Francis Group, NY (2009).
• [4] Jeon Y.S., Mok H.S., Choe G.H. et al., A new simulation model of BLDC motor with real back EMF waveform. Proc. of the 7th Workshop on Computers in Power Electronics, Blacksburg, VA, USA, pp. 217-220 (2000).
• [5] Krishnan R., Permanent Magnet Synchronous and Brushless DC Motor Drives. CRC Press, Taylor & Francis Group, NY (2009).
• [6] Xiangjun Z., Boshi C., The different influences of four PWM modes on the commutation torque ripples in sensorless brushless DC motors control system. Proceedings of the Fifth International Conference on Electrical Machines and Systems ICEMS 2001 1: 579-582 (2001).