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Scientific paper ID 1004 : 2014/3
FREQUENCY CONVERTER ELDI-M EXAMINATIONS
Georgi Pavlov, Vasil Dimitrov A big part of contemporary electrical drive systems are designed on the base of highly efficient asynchronous motors and microprocessor safety and control systems. Frequency Control provides a wide range of speed regulation and relatively high values of energy indicators (power factor and efficiency). Inverters built on IGBT elements are used for the realization of such regulation that provides achieving a high power and low losses in power circuit of the converter. ELDI family Frequency converters have wide application in many drives in various areas of industry because they are designed for speed control on standard induction motors.
In this paper, methodology and algorithm of tests of single phase frequency converter ELDI-M are developed. A laboratory stand has been designed and built, load torque variations have been ensured. The regulation characteristics of the converter, as well as the mechanical characteristics of the motor at linear U/f control are experimentally plotted. The values of the energy indicators are shown. Thus an experimental verification of such of converters applicability in drives in various areas of industry and transport, where a wide range of speed regulation is necessary, is done. асинхронно задвижване честотно управление инверторAsynchronous drives Frequency control InverterGeorgi Pavlov Vasil Dimitrov BIBLIOGRAPHY [1] Balgaranov L., I. Milenov, G. Pavlov, Ch. Dzhambazki, Elektrozadvizhvane, Sofiya, ISSN 978-954-8640-10-7, 2009 ( [1] Българанов Л., И. Миленов, Г. Павлов, Ч. Джамбазки, Електрозадвижване, София, ISSN 978-954-8640-10-7, 2009 ) [2] Davidov S., I.Milenov, H.Ivanov, Malki elektromobili, ISBN 978-954-8640-16-9, Sofiya, 2012, ( [2] Давидов С., И.Миленов, Х.Иванов, Малки електромобили, ISBN 978-954-8640-16-9, София, 2012, ) [3] Frequency Inverters ELDI, Technical Specifications, Electroinvent, 2007 [4] Gama tranzistorni chestotni preobrazuvateli seriya ELDI – tehnichesko opisanie i instruktsiya za montazh i eksploatatsiya, Elektroinvent, 2007 ( [4] Гама транзисторни честотни преобразуватели серия ELDI – техническо описание и инструкция за монтаж и експлоатация, Електроинвент, 2007 ) [5] AC Vector Control Drive ELDI/V, Technical Specifications, Electroinvent, 2010 [6] Net Vision 2010 Three-phase network analyzer, http://bg.emsyst.com/netvision |
