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SYNCHRONOUS PWM CONTROL OF SYMMETRICAL DUAL THREE-PHASE DRIVE IN THE OVERMODULATION ZONE / REGLAREA SINCRONĂ A ACŢIONARULII ELECRTIC SIMETRIC DUBLU TRIFAZAT ÎN ZONA DE SUPRAMODULARE / СИНХРОННОЕ РЕГУЛИРОВАНИЕ СИММЕТРИЧНОГО СДВОЕННОГО ТРЕХФАЗНОГО ЭЛЕКТРОПРИВОДА В ЗОНЕ СВЕРХМОДУЛЯЦИИ

The analysis of operation of symmetrical six-phase (dual three-phase) ac drive system (which is a promising solution for the medium-power and high-power applications) with synchronized pulse-width modulation (PWM) during overmodulation has been performed. The induction machine of this system topolog...

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Published in:Problems of the regional energetics 2013-01, Vol.2013 (1)
Main Authors: Oleschuk, V, Sizov, A
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description The analysis of operation of symmetrical six-phase (dual three-phase) ac drive system (which is a promising solution for the medium-power and high-power applications) with synchronized pulse-width modulation (PWM) during overmodulation has been performed. The induction machine of this system topology has two sets of windings spatially shifted by 60 electrical degrees with isolated neutral points, which are connected with two standard three-phase inverters. Algorithms of synchronized PWM provide continuous synchronization of the phase voltage of the system in the zone of overmodulation. Simulation results are given for dual three-phase systems with two discontinuous versions of synchronized PWM, and with combined synchronized scheme of pulsewidth modulation. A fost efectuată analiza funcţionării actionarului elecrtic simetric dublu trifazat (şase faze) în zona de supramodulare (fiind de perspectiva pentru aplicare în sisteme de putere medie şi mare), reglate în baza algoritmilor modulaţiei sincrone prin impulsuri de durată variabilă. Motorul electric asincron al sistemului include în acest caz două grupuri de înfăşurări trifazate cu fir neutru izolat, cu decalaj de 60 grade electrice faţă de celelalt, care sunt conectate prin doua invertoare trifazate standard. Algoritmi modulaţiei sincrone asigură sincronizarea continuă a curbelor tensiunii fazice ale sistemului în zona de supramodulare. Sunt prezentare rezultatele simulării proceselor în sisteme cu două versiuni a modulatiei sincrone discontinue, precum şi într-un sistem cu modulare sincronă combinată. Выполнен анализ функционирования в зоне сверхмодуляции шестифазного (сдвоенного трехфазного) электропривода переменного тока (перспективного для использования в системах средней и большой мощности), регулируемого на базе алгоритмов синхронной широтно-импульсной модуляции (ШИМ). Асинхронный электродвигатель системы включает в этом случае две трехфазные группы обмоток с изолированными нейтралями, пространственно сдвинутых на 60 эл. градусов относительно друг друга, и соединенных с двумя стандартными инверторами напряжения. Алгоритмы синхронной ШИМ обеспечивают при этом непрерывную синхронизацию кривых фазных напряжений в системе в зоне сверхмодуляции. Приведены результаты моделирования процессов в системах с двумя разновидностями прерывистой синхронной ШИМ, а также в системе с комбинированной синхронной модуляцией.
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Асинхронный электродвигатель системы включает в этом случае две трехфазные группы обмоток с изолированными нейтралями, пространственно сдвинутых на 60 эл. градусов относительно друг друга, и соединенных с двумя стандартными инверторами напряжения. Алгоритмы синхронной ШИМ обеспечивают при этом непрерывную синхронизацию кривых фазных напряжений в системе в зоне сверхмодуляции. Приведены результаты моделирования процессов в системах с двумя разновидностями прерывистой синхронной ШИМ, а также в системе с комбинированной синхронной модуляцией.</description><identifier>ISSN: 1857-0070</identifier><language>eng ; rum ; rus</language><publisher>Chişinău: Institute of Power Engineering</publisher><subject>Algorithms ; Coils (windings) ; Computer simulation ; Induction motors ; Product design ; Pulse duration modulation ; Synchronism ; Topology</subject><ispartof>Problems of the regional energetics, 2013-01, Vol.2013 (1)</ispartof><rights>2013. 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The induction machine of this system topology has two sets of windings spatially shifted by 60 electrical degrees with isolated neutral points, which are connected with two standard three-phase inverters. Algorithms of synchronized PWM provide continuous synchronization of the phase voltage of the system in the zone of overmodulation. Simulation results are given for dual three-phase systems with two discontinuous versions of synchronized PWM, and with combined synchronized scheme of pulsewidth modulation. A fost efectuată analiza funcţionării actionarului elecrtic simetric dublu trifazat (şase faze) în zona de supramodulare (fiind de perspectiva pentru aplicare în sisteme de putere medie şi mare), reglate în baza algoritmilor modulaţiei sincrone prin impulsuri de durată variabilă. Motorul electric asincron al sistemului include în acest caz două grupuri de înfăşurări trifazate cu fir neutru izolat, cu decalaj de 60 grade electrice faţă de celelalt, care sunt conectate prin doua invertoare trifazate standard. Algoritmi modulaţiei sincrone asigură sincronizarea continuă a curbelor tensiunii fazice ale sistemului în zona de supramodulare. Sunt prezentare rezultatele simulării proceselor în sisteme cu două versiuni a modulatiei sincrone discontinue, precum şi într-un sistem cu modulare sincronă combinată. Выполнен анализ функционирования в зоне сверхмодуляции шестифазного (сдвоенного трехфазного) электропривода переменного тока (перспективного для использования в системах средней и большой мощности), регулируемого на базе алгоритмов синхронной широтно-импульсной модуляции (ШИМ). Асинхронный электродвигатель системы включает в этом случае две трехфазные группы обмоток с изолированными нейтралями, пространственно сдвинутых на 60 эл. градусов относительно друг друга, и соединенных с двумя стандартными инверторами напряжения. Алгоритмы синхронной ШИМ обеспечивают при этом непрерывную синхронизацию кривых фазных напряжений в системе в зоне сверхмодуляции. Приведены результаты моделирования процессов в системах с двумя разновидностями прерывистой синхронной ШИМ, а также в системе с комбинированной синхронной модуляцией.</abstract><cop>Chişinău</cop><pub>Institute of Power Engineering</pub><oa>free_for_read</oa></addata></record>
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subjects Algorithms
Coils (windings)
Computer simulation
Induction motors
Product design
Pulse duration modulation
Synchronism
Topology
title SYNCHRONOUS PWM CONTROL OF SYMMETRICAL DUAL THREE-PHASE DRIVE IN THE OVERMODULATION ZONE / REGLAREA SINCRONĂ A ACŢIONARULII ELECRTIC SIMETRIC DUBLU TRIFAZAT ÎN ZONA DE SUPRAMODULARE / СИНХРОННОЕ РЕГУЛИРОВАНИЕ СИММЕТРИЧНОГО СДВОЕННОГО ТРЕХФАЗНОГО ЭЛЕКТРОПРИВОДА В ЗОНЕ СВЕРХМОДУЛЯЦИИ
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