Journal Article10.1109/TPEL.2014.2332503
An Interleaved High-Power Flyback Inverter for Photovoltaic Applications
146
TL;DR: In this paper, an isolated grid-connected inverter for photovoltaic (PV) applications based on interleaved flyback converter topology operating in discontinuous current mode is presented.
read more
Abstract: This paper presents analysis, design, and implementation of an isolated grid-connected inverter for photovoltaic (PV) applications based on interleaved flyback converter topology operating in discontinuous current mode In today's PV inverter technology, the simple and the low-cost advantage of the flyback topology is promoted only at very low power as microinverter Therefore, the primary objective of this study is to design the flyback converter at high power and demonstrate its practicality with good performance as a central-type PV inverter For this purpose, an inverter system rated at 2 kW is developed by interleaving of only three flyback cells with added benefit of reduced size of passive filtering elements A simulation model is developed in the piecewise linear electrical circuit simulator Then, the design is verified and optimized for the best performance based on the simulation results Finally, a prototype at rated power is built and evaluated under the realistic conditions The efficiency of the inverter, the total harmonic distortion of the grid current, and the power factor are measured as 9016%, 442%, and 0998, respectively Consequently, it is demonstrated that the performance of the proposed system is comparable to the commercial isolated PV inverters in the market, but it may have some cost advantage
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Converter topologies in photovoltaic applications – A review
R. Reshma Gopi,S. Sreejith +1 more
TL;DR: A detailed review of various converter topologies such as SEPIC (single-ended primary-inductance converter), boost, buck-boost and flyback which are used to achieve the desired voltage level on grid output are presented.
131
Medium Voltage Large-Scale Grid-Connected Photovoltaic Systems Using Cascaded H-Bridge and Modular Multilevel Converters: A Review
Ahmed Elsanabary,Georgios Konstantinou,Saad Mekhilef,Christopher D. Townsend,Mehdi Seyedmahmoudian,Alex Stojcevski +5 more
TL;DR: In this paper, the authors focus on reviewing the different structures and the technical challenges of modular multilevel topologies and their submodule circuit design for PV applications and compare several balancing strategies to solve this problem.
Cascaded H-Bridge Multilevel PV Topology for Alleviation of Per-Phase Power Imbalances and Reduction of Second Harmonic Voltage Ripple
TL;DR: In this article, the authors proposed a converter topology that avoids the cost of extra series connected H-bridges by extending the function of dc-dc converters that provide isolation.
112
A PV Micro-inverter With PV Current Decoupling Strategy
TL;DR: In this article, a photovoltaic micro-inverter with PV current decoupling (PVCD) strategy was proposed to achieve maximum power point tracking (MPPT) performance without using large electrolytic capacitors.
84
Photovoltaic AC Module Based on a Cuk Converter With a Switched-Inductor Structure
TL;DR: The development of a photovoltaic ac module composed of a high static gain nonisolated dc–dc converter with current source output characteristic followed by an unfolding low-frequency inverter is presented in this paper.
74
References
A Three-port Flyback for PV Microinverter Applications With Power Pulsation Decoupling Capability
TL;DR: In this paper, a single-stage photovoltaic (PV) microinverter with power decoupling capability is proposed, and the proposed topology is based on three-port flyback with one port dedicated to decoupled function.
160
A New Control Strategy for Improving Weighted Efficiency in Photovoltaic AC Module-Type Interleaved Flyback Inverters
TL;DR: A new control strategy for improving weighted efficiency in photovoltaic (PV) ac module-type interleaved flyback inverters (ILFIs) according to the output of the PV module is proposed, which can improve the efficiency of an ILFI as a PV power conditioner in all power ranges.
143
A Weighted-Efficiency-Oriented Design Methodology of Flyback Inverter for AC Photovoltaic Modules
TL;DR: In this paper, an innovative design methodology that optimizes the weighted efficiency of a single-phase, single-stage flyback inverter for ac-photovoltaic (PV) module applications is proposed.
142
Efficiency Optimization in Digitally Controlled Flyback DC–DC Converters Over Wide Ranges of Operating Conditions
TL;DR: In this article, a lookup table-based digital controller is applied to achieve on-line efficiency optimization by programming switching frequencies and operating modes based on the efficiency optimization processes, which is verified by experimental results on a low cost 65 W flyback dc-dc prototype.
118
Soft-switching flyback inverter with enhanced power decoupling for photovoltaic applications
TL;DR: In this paper, a single-phase flyback inverter for photovoltaic applications is proposed to achieve low-frequency ripple current reduction on the DC busbar and to draw sinusoidal current into the AC grid.
110