NDLI: Family of single-phase isolated high-frequency transformer integrated improved magnetically coupled Z-source ac

Content Provider	IET Digital Library
Author	Ahmed, Hafiz Furqan Moursi, Mohamed Shawky El Irshad, Tooba Saadany, Ehab El Hosani, Khalifa Al
Abstract	This study proposes single-phase improved coupled-inductor (CL) Z-source (ZS) ac–ac converters with integrated high-frequency transformer (HFT) isolation. They can provide wide range of buck–boost voltage with same/reversed phase angle, similar to the existing ZS ac–ac converters. Meanwhile, integrating a HFT with CL in proposed converters benefit in two-fold: (i) the CL enhances the voltage gain, which in turn reduces the voltage stresses/ratings of active switches. Moreover, the turns ratio of CL add another degree of freedom to gain adjustment beside the duty ratio; (ii) the HFT (20 kHz) is integrated with CL by adding only one winding to the same magnetic core, which provides electrical isolation for applications such as dynamic voltage restore, saving extra bulky line frequency (60 Hz) transformer. In addition, the proposed converters provide both continuous input/output currents. The commutation strategy is also implemented to eliminate the switch voltage spikes. A proposed HFT isolated improved three-winding Δ-CL ZS (Δ-ZS) ac–ac converter is introduced at first, and its operation, circuit analysis and component design/selection are discussed in detail along with comparisons with counterpart converters. Various different CL structures based proposed HFT isolated ZS ac–ac converters are presented afterwards. Experimental results on 200 W prototype converter are provided finally to verify their merits.
Starting Page	1901
Ending Page	1910
Page Count	10
ISSN	17554535
Volume Number	13
e-ISSN	17554543
Issue Number	Issue 9, Jul (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/13/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2019.1568
Journal	IET Power Electronics
Publisher Date	2020-03-20
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	AC-AC Power Converter Control of Electric Power System Coupled-inductor Z-source Ac–ac Converters DC-DC Power Converter Existing ZS Ac–ac Converters Extra Bulky Line Frequency Transformer Frequency 20.0 KHz Frequency 60.0 Hz HFT High-frequency Transformer Inductor Inductors And Transformer Integrated High-frequency Transformer Isolation Power 200 W Power Converter Power Electronics Power Supplies to Apparatus Power Supply Power Supply Quality Power Transformer Proposed Converter Supervisory Circuit Switching Converter Transformer And Reactors Transformer Windings Δ-CL ZS Ac–ac Converter Δ-ZS
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Design of coupled inductors using split winding scheme for bridgeless SEPIC

Design optimisation of an inductor-integrated MF transformer for a high-power isolated dual-active-bridge DC–DC converter

AC–DC boost converter based on T-type multi-state switching cell and output voltage balancing

High step-up DC–DC converter with coupled inductor suitable for renewable applications

Derivation, analysis and development of coupled-inductor-based non-isolated DC converters with ultra-high voltage-conversion ratio

High step-up dc–dc converter based on modified active switched-inductor and switched-capacitor cells

Quasi-Y-Source Boost DC–DC Converter

High step-up DC/DC converters based on coupled inductor and switched capacitors

Step-up/down three-phase resonant high-frequency ac-link inverters

Family of single-phase isolated high-frequency transformer integrated improved magnetically coupled Z-source ac–ac converters

Similar Documents

Design of coupled inductors using split winding scheme for bridgeless SEPIC

Design optimisation of an inductor-integrated MF transformer for a high-power isolated dual-active-bridge DC–DC converter

AC–DC boost converter based on T-type multi-state switching cell and output voltage balancing

High step-up DC–DC converter with coupled inductor suitable for renewable applications

Derivation, analysis and development of coupled-inductor-based non-isolated DC converters with ultra-high voltage-conversion ratio

High step-up dc–dc converter based on modified active switched-inductor and switched-capacitor cells

Quasi-Y-Source Boost DC–DC Converter

High step-up DC/DC converters based on coupled inductor and switched capacitors

Step-up/down three-phase resonant high-frequency ac-link inverters

Family of single-phase isolated high-frequency transformer integrated improved magnetically coupled Z-source ac–ac converters