NDLI: Partly isolated three-port DC–DC converter based on impedance network

Content Provider	IET Digital Library
Author	Bayat, Pezhman Baghramian, Alfred
Abstract	This study proposed a novel partly isolated three port converter (PITPC) based on a quasi-Z source converter for photovoltaic applications. Compared with the conventional quasi-Z source converter, the proposed DC–DC converter has dual input sources and uses the switched capacitors and coupled inductor techniques, helping the converter to gain a high voltage. To achieve the power flow control, the proposed converter uses only three power switches with low voltage stress and it is developed for hybridising photovoltaic panels, rechargeable batteries and isolated loads. For this purpose, the proposed PITPC can be easily reconfigured into dual-input single-output, single-input dual-output and single-input single-output modes; so it can even operate when the photovoltaic panel fails to provide energy to the load. Moreover, the study thoroughly discusses various converter operating modes and provides explanations and necessary relationships for circuit operations. The study also explains the control strategy as well as the pulse width modulation waveforms for the proposed converter. Simulation results from MATLAB/Simulink examine the proposed topology performance. The experimental results confirm the advantages claimed for the proposed converter; the results also show a well-distributed efficiency curve and a peak of 96.3%.
Starting Page	2175
Ending Page	2193
Page Count	19
ISSN	17554535
Volume Number	13
e-ISSN	17554543
Issue Number	Issue 11, Aug (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/13/11
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2019.1348
Journal	IET Power Electronics
Publisher Date	2020-04-08
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Control of Electric Power System Conventional QuasiZ Source Converter Converter Operating Modes Coupled Inductor Technique DC-DC Power Converter Dual Input Sources Dual-input Single-output Modes Efficiency 96.3 Percent Hybridising Photovoltaic Panels Impedance Network Load Flow Control Low Voltage Stress MATLAB Simulink Environment Partly Isolated Three-port DC–DC Converter Photovoltaic Application Photovoltaic Panel PITPC Port Converter Power Electronics Power Flow Control Power Supply Power Switch Power System Control Pulse Width Modulation Waveform Rechargeable Batteries Secondary Cell Single-input Dual-output Mode Single-input Single-output Mode Solar Cell Array Supervisory Circuit Switched Capacitor Switching Converter Topology Performance
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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