Damping of Vibration in an Electric Drive System with a Long Elastic Coupling

Published by Andrzej POPENDA, Czestochowa University of Technology Abstract. In the paper the uncomplicated structure of the active limiter of current reference for a BLDC motor control system is proposed. The limiter allows for uninterruptible operation of a speed controller due to the automatically adjusted rate of change of angular velocity reference depending on actualContinue reading “Damping of Vibration in an Electric Drive System with a Long Elastic Coupling”

Direct-Phase Variable Modelling and Analysis of Five-Phase Synchronous Reluctance Motor for Direct-on-Line Starting

Published by Gideon UMOH1, Chinedu OBE2, Cosmas OGBUKA2, George EKPO3, Emeka OBE2, Department of Electrical Engineering, Maritime Academy of Nigeria, Oron, Akwa-Ibom State, Nigeria(1),Department of Electrical Engineering, University of Nigeria, Nsukka, Enugu State, Nigeria(2)Department of Electrical and Electronic Engineering, Akwa Ibom State Polytechnic, Ikot Osurua, Nigeria(3) Abstract. The direct-phase variable (DPV) model of a five-phaseContinue reading “Direct-Phase Variable Modelling and Analysis of Five-Phase Synchronous Reluctance Motor for Direct-on-Line Starting”

Inter-Turns Short Circuits in Stator Winding of Squirrel-Cage Induction Motor

Published by Maciej ANTAL, Wrocław University of Science and Technology, Department of Electrical Machines, Drives and Measurements Abstract. A physical model of a squirrel-cage induction drive, allowing to stimulate coil short circuits in the front part of the motor, was used to investigate the phenomena accompanying short circuits. Assuming that a short circuit occurs duringContinue reading “Inter-Turns Short Circuits in Stator Winding of Squirrel-Cage Induction Motor”

Large-Power Synchronous Motor Braking by Field Current

Published by Marian HYLA, Silesian University of Technology, Department of Power Electronics, Electrical Drives and Robotics Abstract. The paper presents the braking process of a large-power salient-pole synchronous motor forced by field current. The motor control was carried out using a microprocessor block for the excitation of large-power synchronous motors. Cases of free retardation andContinue reading “Large-Power Synchronous Motor Braking by Field Current”

Faults Detection in PMSM Drive using Artificial Neural Network

Published by Konrad URBAŃSKI, Dariusz MAJCHRZAK,Poznań University of Technology Abstract. In this paper, simulation research results of PMSM drive with open phase fault detection are presented. Proposed fault detection system is implemented using two artificial neural networks. One of them is neural model of healthy PMSM and another one generates diagnostic signals. When the faultContinue reading “Faults Detection in PMSM Drive using Artificial Neural Network”

Incheon Airport Maglev Line

Published by Doh-Young PARK1, Jacek F. GIERAS2,3Korea Institute of Machinery and Materials, Daejeon, Korea (1), UTP University of Science and Technology, Bydgoszcz, Poland (2), Korea Electrotechnology Research Institute, Changwon, Korea (3), Abstract. The paper presents the Incheon Airport Maglev Line (IAML) in South Korea connecting Incheon Airport with Yeongjong Island. The paper focuses on constructionContinue reading “Incheon Airport Maglev Line”

Converter-Fed Electric Vehicle (Car) Drives – A Critical Review

Published by Konrad DĄBAŁA1, Marian P. KAZMIERKOWSKI1,2,The Łukasiewicz Research Network – Electrotechnical Institute, Warsaw (1)Warsaw University of Technology, Faculty Electrical Engineering (2) Abstract In this paper the basic requirements and current developments of converter-fed drives for electric vehicles, particularly for electric cars, are reviewed and compared. The basic parts of the powertrain have been presentedContinue reading “Converter-Fed Electric Vehicle (Car) Drives – A Critical Review”

Start-up of PM Synchronous Motors

Published by Stanisław GAWRON, Jakub BERNATT, Artur POLAK,Sieć Badawcza Łukasiewicz – Instytut Napędów i Maszyn Elektrycznych KOMEL Abstract. Three variants of starting synchronous motors are presented. In simplest solution, cage winding is placed in rotor, asynchronous start-up is obtained. This method generates large surge currents adversely affecting power grid and motor (impact forces/impact torque areContinue reading “Start-up of PM Synchronous Motors”

Enclosure-Less Six-Phase Induction Motor

Published by Maciej GWOZDZIEWICZ1, Piotr KISIELEWSKI2, Wroclaw University of Science and Technology (1), KISIELEWSKI Sp. z o.o. (2) Abstract. The papers deals with six-phase 2 kW 2-pole induction motor without enclosure. The motor is made of laser-cut construction steel , electrical steel and copper sheets. Shaft, two flange cartridge bearing units are machined by theContinue reading “Enclosure-Less Six-Phase Induction Motor”

Resource-Saving Protection of Powerful Electric Motors

Published by Mark KLETSEL1, Abdulla KALTAYEV2, Bauyrzhan MASHRAPOV2,National Research Tomsk Polytechnic University (1), Pavlodar State University (2) Abstract.The article presents the disadvantages of traditional and some new electric protections of powerful electric motors. It is proposed to eliminate these drawbacks by constructing phase-sensitive protection that does not use current transformers, with a majority circuit andContinue reading “Resource-Saving Protection of Powerful Electric Motors”