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논문 기본 정보

자료유형
학술저널
저자정보
Mostafa Barzegar Kalashani (Urmia University) Behrouz-Tousi (Urmia University Iran)
저널정보
한국전기전자재료학회 Transactions on Electrical and Electronic Materials Transactions on Electrical and Electronic Materials 제19권 제6호
발행연도
2018.12
수록면
433 - 446 (14page)
DOI
https://doi.org/10.1007/s42341-018-0066-0

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초록· 키워드

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Incapability under faulty conditions is one of the most important problems of induction motor drives which are controlledby multilevel inverters. This paper investigates a modular multilevel inverter which is employed as an induction motor drivewith capability of operation under normal and faulty conditions. For this aim, diff erent switching scenarios have been defi nedfor each switch under faulty conditions. In this method, when one of the switches is faulted, the switching scenario is alteredand the motor operates in its normal mode although a percent of output power is lost. One of the most important factors inmultilevel inverter design is the number of the power electronic elements which directly infl uences the cost of the system. From this view point, the presented multilevel inverter structure employs fewer number of power electronic elements in comparisonwith other conventional multilevel inverter topologies. The other advantage of the presented topology is its capabilityto cascade diff erent units which can be used for high power motor applications. To illustrate the effi ciency of the proposedsystem, a closed loop indirect fi eld oriented control method has been applied to the suggested topology. Diff erent scenariosincluding normal and abnormal conditions have been applied to the system. To verify the valid operation of the presentedsystem, a 15 kW three phase induction motor is selected and simulated using MATLAB/Simulink software. According tothe analysis and simulation results, the presented system shows a good performance under various conditions. In addition,good voltage balancing and low total harmonic distortion are the main features of the proposed system.

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