ELECTROTECHNIC AND COMPUTER SYSTEMS, Odessa national polytechnic university

IMPROVEMENT OF POWER SUPPLY ELECTROMAGNETIC COMPATIBILITY OF FREQUENCY CONVERTERS BY APPLICATION OF ACTIVE RECTIFIERS

Abstract:

Mediumandhighpowerfrequencyconvertersaresourcesofhigherharmonicsinthesupply network. ThereareRussianandinternationalstandards (GOST 51317.3.12-2006, IEC 61000-3-14, IEC-555, IEEE-519) thatimposerequirementsforissuingtheharmoniccomponentsofcurrentsconsumedbytechnicalmeans.Pressingissueisemissionsreductionofhigherharmonicsandimprovethepowerfactor.Promisingistheuseoffrequencyconverterswith two-and three-levelactiverectifierwithpowerfactorcorrection. Application ofactiverectifierwithpowerfactorcorrectionwillallowtheimplementationoftheinputphasecurrentswithlowcontentofhigherharmonicsandpowerfactorclosetounity, thepossibilityofimplementingenergyrecovery, andtheabilitytocontrolthevoltageonthe DC bus.The articleprovidesananalysisoftheemissionlevelhigherharmoniccomponentsoffrequencyconverterswith two-and three-levelactiverectifiers, powerqualityanalysisofthe DC andthepowerdissipatedintheIGBT keysofactiverectifiers.

Authors:

Plakhtiy Alexandr A. ( 83et@mail.ru )
Shcherbak Yakov V. ScD ( sherbak47@mail.ru )
Tsekhovskoy Maksim V. PhD

Keywords

inverter, active rectifier, power factor correction, electromagnetic compatibility

DOI

10.15276/etks.15.91.2014.79

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