DIRECT FREQUENCY CONVERTER WITH ARTIFICIAL AND NATURAL COMMUTATION FOR BRUSHLESS ASYNCHRONIZED MACHINES

The comparative analysis of direct frequency converters with artificial and natural- switching term of the cyclical control algorithm is presented; the recommendations for their using in brushless asynchronized machines with three-phase winding are developed. Converters with a limited number of full...

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Autores principales:	А.М. Galynovskiy, E.А. Lenskaya, N.P. Melnik
Formato:	article
Lenguaje:	EN RU UK
Publicado:	National Technical University "Kharkiv Polytechnic Institute" 2015
Materias:	brushless asynchronized machine inverter diode transistor thyristor Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/76d8d5bd4fed471d826743cf19996439
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spelling	oai:doaj.org-article:76d8d5bd4fed471d826743cf199964392021-12-02T18:17:40ZDIRECT FREQUENCY CONVERTER WITH ARTIFICIAL AND NATURAL COMMUTATION FOR BRUSHLESS ASYNCHRONIZED MACHINES2074-272X2309-3404https://doaj.org/article/76d8d5bd4fed471d826743cf199964392015-11-01T00:00:00Zhttp://eie.khpi.edu.ua/article/view/52341/48474https://doaj.org/toc/2074-272Xhttps://doaj.org/toc/2309-3404The comparative analysis of direct frequency converters with artificial and natural- switching term of the cyclical control algorithm is presented; the recommendations for their using in brushless asynchronized machines with three-phase winding are developed. Converters with a limited number of full-controlled valves have large losses in safety circuits of gates, they can be used in system of automatic excitation control. The best quality of voltage and current load are provided by converters with natural commutation using modulated input voltage, the combined potential compounds windings supply and the combined method of thyristor controlling. When the load is divided into two three-phase groups, an even number of phases of the power supply for single phase of the load are applied the bridge converter circuit. Regulation of the load current is carried out by the excitation current of field exciters and by the control angle of thyristor. Converters can be used in high-power asynchronized motors and generators. In asynchronized compensators it is possible to use diode-thyristor converters without transmitting the control signals to the rotating part. The frequency converters without modulation of input voltage have the smallest increase in rated capacity of power supply. However, they have a low quality form of the output voltage at high power factor of load.А.М. GalynovskiyE.А. LenskayaN.P. MelnikNational Technical University "Kharkiv Polytechnic Institute"articlebrushless asynchronized machineinverterdiodetransistorthyristorElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENRUUKElectrical engineering & Electromechanics, Iss 5, Pp 23-30 (2015)
institution	DOAJ
collection	DOAJ
language	EN RU UK
topic	brushless asynchronized machine inverter diode transistor thyristor Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	brushless asynchronized machine inverter diode transistor thyristor Electrical engineering. Electronics. Nuclear engineering TK1-9971 А.М. Galynovskiy E.А. Lenskaya N.P. Melnik DIRECT FREQUENCY CONVERTER WITH ARTIFICIAL AND NATURAL COMMUTATION FOR BRUSHLESS ASYNCHRONIZED MACHINES
description	The comparative analysis of direct frequency converters with artificial and natural- switching term of the cyclical control algorithm is presented; the recommendations for their using in brushless asynchronized machines with three-phase winding are developed. Converters with a limited number of full-controlled valves have large losses in safety circuits of gates, they can be used in system of automatic excitation control. The best quality of voltage and current load are provided by converters with natural commutation using modulated input voltage, the combined potential compounds windings supply and the combined method of thyristor controlling. When the load is divided into two three-phase groups, an even number of phases of the power supply for single phase of the load are applied the bridge converter circuit. Regulation of the load current is carried out by the excitation current of field exciters and by the control angle of thyristor. Converters can be used in high-power asynchronized motors and generators. In asynchronized compensators it is possible to use diode-thyristor converters without transmitting the control signals to the rotating part. The frequency converters without modulation of input voltage have the smallest increase in rated capacity of power supply. However, they have a low quality form of the output voltage at high power factor of load.
format	article
author	А.М. Galynovskiy E.А. Lenskaya N.P. Melnik
author_facet	А.М. Galynovskiy E.А. Lenskaya N.P. Melnik
author_sort	А.М. Galynovskiy
title	DIRECT FREQUENCY CONVERTER WITH ARTIFICIAL AND NATURAL COMMUTATION FOR BRUSHLESS ASYNCHRONIZED MACHINES
title_short	DIRECT FREQUENCY CONVERTER WITH ARTIFICIAL AND NATURAL COMMUTATION FOR BRUSHLESS ASYNCHRONIZED MACHINES
title_full	DIRECT FREQUENCY CONVERTER WITH ARTIFICIAL AND NATURAL COMMUTATION FOR BRUSHLESS ASYNCHRONIZED MACHINES
title_fullStr	DIRECT FREQUENCY CONVERTER WITH ARTIFICIAL AND NATURAL COMMUTATION FOR BRUSHLESS ASYNCHRONIZED MACHINES
title_full_unstemmed	DIRECT FREQUENCY CONVERTER WITH ARTIFICIAL AND NATURAL COMMUTATION FOR BRUSHLESS ASYNCHRONIZED MACHINES
title_sort	direct frequency converter with artificial and natural commutation for brushless asynchronized machines
publisher	National Technical University "Kharkiv Polytechnic Institute"
publishDate	2015
url	https://doaj.org/article/76d8d5bd4fed471d826743cf19996439
work_keys_str_mv	AT amgalynovskiy directfrequencyconverterwithartificialandnaturalcommutationforbrushlessasynchronizedmachines AT ealenskaya directfrequencyconverterwithartificialandnaturalcommutationforbrushlessasynchronizedmachines AT npmelnik directfrequencyconverterwithartificialandnaturalcommutationforbrushlessasynchronizedmachines
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DIRECT FREQUENCY CONVERTER WITH ARTIFICIAL AND NATURAL COMMUTATION FOR BRUSHLESS ASYNCHRONIZED MACHINES

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