Dead-Time Analysis in Three-Phase Two-Level Inverters using the SVPWM Technique

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Özet

Inverters have many application areas including the variable frequency drives applications of the motor industry. Three-phase inverters based on the three-phase system that we are using are becoming more common. The implementation of the space vector PWM (SVPWM) modulation technique in three-phase inverters is more advantageous than other modulation techniques due to the lower harmonic content and higher DC bus utilization it provides. A delay time, also called the dead-time, is added to the rising edge of the PWM signals for triggering the gates of the switches to avoid shoot-through faults in the inverters. Although it has a protection advantage, it has some disadvantages such as output voltage drop, phase shift, zero current clamping and increase in total harmonic distortion (THD) of the output current. In this study, these effects of dead-time are compensated by employing the simple yet effective feedforward method using the SVPWM technique. Moreover, the relationship between the effects of the dead-time and switching frequency is investigated. The results exhibit that the THD of the current is optimized when the switching frequency is controlled rather than kept constant.

Orijinal dilİngilizce
Ana bilgisayar yayını başlığıProceedings - 2022 IEEE 4th Global Power, Energy and Communication Conference, GPECOM 2022
YayınlayanInstitute of Electrical and Electronics Engineers Inc.
Sayfalar210-215
Sayfa sayısı6
ISBN (Elektronik)9781665469258
DOI'lar
Yayın durumuYayınlandı - 2022
Etkinlik4th IEEE Global Power, Energy and Communication Conference, GPECOM 2022 - Cappadocia, Turkey
Süre: 14 Haz 202217 Haz 2022

Yayın serisi

AdıProceedings - 2022 IEEE 4th Global Power, Energy and Communication Conference, GPECOM 2022

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???event.eventtypes.event.conference???4th IEEE Global Power, Energy and Communication Conference, GPECOM 2022
Ülke/BölgeTurkey
ŞehirCappadocia
Periyot14/06/2217/06/22

Bibliyografik not

Publisher Copyright:
© 2022 IEEE.

Finansman

This work is financially supported by The Scientific and Technological Research Council of Turkey (TUBITAK) (Grant No: 120E375) and Istanbul Technical University (ITU-BAP Grant No: 43142).

FinansörlerFinansör numarası
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu120E375
Istanbul Teknik Üniversitesi
Bilimsel Araştırma Projeleri Birimi, İstanbul Teknik Üniversitesi43142

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