Baza Publikacji Pracowników Politechniki Lubelskiej

Status:
Autorzy:	R. S. Vivek, Debnath Tutan, Gopakumar Kumarukattan Nair, Umanand Loganathan, Zieliński Dariusz
Dyscypliny:
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Rok wydania:	2024
Wersja dokumentu:	Elektroniczna
Język:	angielski
Numer czasopisma:	1
Wolumen/Tom:	12
Strony:	876 - 885
Impact Factor:	4,6
Web of Science® Times Cited:	2
Scopus® Cytowania:	1
Bazy:	Web of Science \| Scopus \| IEEE Xplore
Efekt badań statutowych	NIE
Materiał konferencyjny:	NIE
Publikacja OA:	NIE
Abstrakty:	angielski
	This article proposes an 18-switch five-level inverter topology for induction motor (IM) drives, enabling an extended linear modulation range (LMR) till full base speed. The power circuit consists of a conventional NPC three-level inverter and a standard two-level inverter feeding the opposite phase winding ends of an open-ended winding IM. The proposed inverter achieves a voltage space vector radius of 0.955 Vdc and a maximum peak fundamental phase voltage of 0.637 Vdc in its LMR compared to a conventional five-level inverter with the corresponding figures of 0.866 and 0.577 Vdc , respectively. This improvement arises from the fact that in the overmodulation region spanning from 0.577 to 0.637 Vdc , the standard five-level inverter operates in a six-step mode, resulting in the voltage space vector trace a hexagonal path producing a lower-order harmonic-rich phase voltage. The proposed power circuit effectively addresses this issue by ensuring a circular locus for the voltage space vector up to a radius of 0.955 Vdc resulting in a maximum peak fundamental voltage of 0.637 Vdc . Consequently, it extends the linear speed range of the motor to the full base speed without lower-order harmonic problems.

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A Reduced Switch Count Five Level Inverter With Extended Linear Modulation Range Up to Full Base Speed

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