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Comparison of Inverter Topologies Suited for Integrated Modular Motor Drive Applications
Date
2018-08-30
Author
Ugur, Mesut
Sarac, Hakan
Keysan, Ozan
Metadata
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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In this paper, various inverter topologies are compared for integrated modular motor drive (IMMD) applications. Two-level voltage source inverter (2L-VSI), three level voltage source inverter (3L-VSI) and series/parallel combinations of these topologies with system level modularity are compared in terms of voltage and current harmonic spectrum, passive component sizes and motor drive efficiency. New generation wide band-gap GaN power semiconductor devices are utilized in modular topologies and they are compared with a conventional IGBT motor drive. The effect of phase-shifting between the PWM carrier signals of parallel connected modules and its contribution to size reduction is investigated. IMMD structure has proven to have a superior efficiency compared to conventional motor drives, thanks to the utilization of GaNs. It has been shown that over 98% motor drive efficiency can be achieved for 8kW IMMD by using a newly proposed topology where 2L-VSI converters are connected both in series and parallel on the DC link.
Subject Keywords
Gallium nitride
,
Modular motor drive topologies
,
Integrated motor drive
,
Voltage source inverter
,
Motor drive efficiency
URI
https://hdl.handle.net/11511/53410
Conference Name
18th IEEE International Power Electronics and Motion Control Conference (IEEE PEMC)
Collections
Department of Electrical and Electronics Engineering, Conference / Seminar
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In this study, design procedure of an Integrated Modular Motor Drive (IMMD) is presented focusing on high power density. The design is based on a permanent magnet synchronous motor (PMSM) and GaN FETs. Fractional slot concentrated windings are used on the stator. Slot/pole combination and winding configuration is selected based on having low cogging torque and high winding factor. An extended motor drive inverter topology is proposed where 2-level voltage source inverters are connected both in series and pa...
Tümleşik Modüler Motor Sürücü Sistemi Tasarımı
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Bu çalışmada, bir Tümleşik Modüler Motor Sürücü (TMMS) sistemi tasarımı gerçekleştirilmiştir. TMMS sistemi için modüler bir kesirli oluklu, konsantre sargılı (FSCW), sabit mıknatıslı senkron motor (PMSM) ile birlikte Galyum Nitrat (GaN) teknolojisine dayalı modüler motor sürücü güç katı tasarımı yapılmıştır. Konvansiyonel sistemlere göre %2’lik verim artışı sağlanmıştır. Tümleşik motor sürücü sistemine uygun DA bara kondansatör seçimi gerçekleştirilmiştir. Interleaving tekniği kullanılarak kondansatör boyut...
Multi-physics design optimisation of a GaN-based integrated modular motor drive system
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DC Link Capacitor Optimization for Integrated Modular Motor Drives
Ugur, Mesut; Keysan, Ozan (2017-06-21)
In this paper, selection of optimum DC link capacitor for Integrated Modular Motor Drives (IMMD) is presented. First, a review of IMMD technologies is given and current research and future prospects are studied. Inverter topologies and gate drive techniques are evaluated in terms of DC link performance. The urge for volume reduction in IMMD poses a challenge for the selection of optimum DC link capacitor. DC Link capacitor types are discussed and critical aspects in selecting the DC links capacitor are list...
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In this study, fault tolerance and redundancy capabilities of different phase and winding configurations of an Integrated Modular Motor Drive (IMMD) system are investigated. This is made possible by manipulating gate drive signals of the inverter and phase connections. Three and four phase connections as well as symmetric and asymmetric six-phase topologies are described. Control strategies and redundancy possibilities of these different topologies under an open circuit fault condition are examined in MATLA...
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M. Ugur, H. Sarac, and O. Keysan, “Comparison of Inverter Topologies Suited for Integrated Modular Motor Drive Applications,” presented at the 18th IEEE International Power Electronics and Motion Control Conference (IEEE PEMC), World Trade Ctr, Budapest, HUNGARY, 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/53410.
