Výsledky vyhledávání - "Ahmad Salemnia"

Akademický článek

A high step‐up coupled‐inductor‐based dc‐dc converter with a wide duty cycle range and improved gain‐to‐element ratio

Autor: Mostafa Karimi Hajiabadi, Alireza Lahooti Eshkevari, Iman Abdoli, Ali Mosallanejad, Ahmad Salemnia

Publikováno v: IET Power Electronics, Vol 17, Iss 9, Pp 1005-1022 (2024)

Abstract Most high‐gain step‐up dc‐dc structures operate with a limited duty cycle and suffer from a high component count, limiting their application. This paper addresses these problems by proposing a new step‐up dc‐dc converter that provi

Externí odkaz: https://doaj.org/article/17d7c4192abd4197975023d51d4b0cd2

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Akademický článek

Ultra‐high gain quadratic boost DC–DC converter based on a three‐winding coupled inductor with reduced voltage stress for fuel cell‐based systems

Autor: Mostafa Karimi Hajiabadi, Ali Mosallanejad, Ahmad Salemnia

Publikováno v: IET Power Electronics, Vol 16, Iss 16, Pp 2666-2681 (2023)

Abstract Here, an ultra‐high gain quadratic boost DC–DC converter (UQBC) based on the conventional quadratic boost converter (CQBC) and a three‐winding coupled inductor (TWCI) has been proposed. It benefits from an extensive voltage gain range

Externí odkaz: https://doaj.org/article/b70472c8a90a41b98df521450d43f74a

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Akademický článek

A novel pulse multiplication circuit for reducing harmonic distortion of 12 pulse rectifiers in aircraft electrical power systems

Autor: Rohollah Abdollahi, Ahmad Salemnia, Morteza Abdolhosseini

Publikováno v: IET Electrical Systems in Transportation, Vol 13, Iss 2, Pp n/a-n/a (2023)

Abstract To improve the performance and reduce the total harmonic distortion (THD) of the autotransformer 12‐pulse rectifier, a novel pulse multiplication circuit (PMC) based on two tapped inter‐phase reactors (TIPRs) is proposed to improve perfo

Externí odkaz: https://doaj.org/article/26ad68d0c4ed4ba3804b5f93b16cbe7c

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Akademický článek

Transformer inter‐turn failure detection based on leakage flux and vibration analysis

Autor: Salman Hajiaghasi, Mohammad Milad Hosseini Ahmadi, Pedram Goleij, Ahmad Salemnia

Publikováno v: IET Electric Power Applications, Vol 15, Iss 8, Pp 998-1012 (2021)

Abstract Inter‐turn winding fault is one of the most critical failures of the transformers. Here, a comprehensive transformer leakage flux analysis under inter‐turn winding fault is presented, and the feasibility and sensitivity of leakage flux�

Externí odkaz: https://doaj.org/article/984b395f0da34a6b8dbc2aaa9fceb187

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Akademický článek

A new quasi‐Z‐source switched‐boost four‐switch three‐phase inverter with independent shoot‐through and non‐shoot‐through modulation indexes

Autor: Mohammad Babaee Vandishi, Alireza Lahooti Eshkevari, Ahmad Salemnia, Ali Mosallanejad

Publikováno v: IET Power Electronics, Vol 14, Iss 3, Pp 548-561 (2021)

Abstract Four‐switch three‐phase inverters (FSTPI) are the cost‐optimised version of two‐level voltage source inverters (TL‐VSI), promoted for low‐power/low‐voltage machine drive systems. Adding impedance‐based networks to the input o

Externí odkaz: https://doaj.org/article/29c91445bbe448a990b17db4d38d8f24

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