Development of a laboratory bench for determining the characteristics of a brush-less dc motor
DOI:
https://doi.org/10.31498/2225-6733.41.2020.226185Keywords:
безколекторний двигун постійного струму, інвертор напруги, лабораторний стендAbstract
The article discusses the advantages of brushless direct current motors (BLDC). Compared with conventional DC motors, the efficiency of the BLDC motor can reach 93-95%. This determines their use in electric transport systems: electric vehicles, electric bicycles, etc. It is proposed to include the study of BLDC in the educational process, for which it is proposed to develop and create a laboratory bench for the study of mechanical and control characteristics of BLDC. The article discusses the principle of operation of brushless DC motors, methods of controlling a voltage inverter driving such a motor. Three versions of a laboratory bench for researching brushless DC motors have been developed. The bench contains two BLDC motors with excitation from permanent magnets of the CG48V 1000W 50 type, the shafts of which are interconnected. One of the motors is a test subject, the other acts as an electromagnetic brake. The motor shafts are rigidly fixed to each other. This kinematics allows us to measure the torque developed by the motor under study. The motors are powered from independent regulated AC power supplies – controllers, which are connected to a common 48 V DC bus supported by the lithium battery. The battery is charged from the dedicated charger, which is powered from a single-phase 220 V 50 Hz grid. A digital frequency meter (tachometer) is used to measure the rotational speed. A research methodology has been developed for the investigation of the mechanical and control characteristics of BLDC with their subsequent analysis. The use of the developed bench will allow to introduce modern equipment into the educational process and ensure an improvement in the quality of education
References
AN047 Brushless DC motor fundamentals Application Note. – 2014. – 19 p. – Mode of access: https://www.monolithicpower.com/pub/media/document/Brushless_DC_Motor_Fundamentals.pdf.
Speed Torque characteristics of Brushless DC motor in either direction on load using ARM controller / M.V. Ramesh, J. Amarnath, S. Kamakshaiah, B. Jawaharlal, Gorantla S. Rao // Journal of Energy Technologies and Policy. – 2011. – Vol. 2, no.1. – Pp. 37-48. DOI: 10.1109/ISET-India.2011.6145385
Степанковський Ю.В. Методичні вказівки до лабораторних робіт з дисципліни «Перетворюючи пристрої» («Електричні мікромашини») / Ю.В. Степанковський. – К. : НТУУ «КПІ», 2013. – 74 с.
Степанковский Ю.В. Преобразующие устройства приборов. Т. 1. Электродвигатели (силовые микромашины) / Ю.В. Степанковский. – К. : Корнійчук, 2002. – 207 с.
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Copyright (c) 2020 С.К. Поднебенна , В.В. Бурлака , І.С. Корольов
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