Journal ArticleDOI
Weighted Efficiency Optimization of Flyback Microinverter Under Improved Boundary Conduction Mode (i-BCM)
TLDR
In this paper, a design methodology is presented, that maximizes the weighted efficiency of the converter through an optimization algorithm, and the inverter operation is investigated and the behavior under the improved boundary condition mode is documented by analytical equations followed by the power loss calculations for each component.Abstract:
The flyback topology is proven to be a very strong candidate solution for use in ac-PV module applications. Operation in the boundary condition mode (BCM) provides high power density, while maintaining the characteristics of a current source inverter. In this paper, a design methodology is presented, that maximizes the weighted efficiency of the converter through an optimization algorithm. The inverter operation is investigated and the behavior under the improved BCM is documented by analytical equations followed by the power loss calculations for each component. This enables to accurately define the relation between the design parameters and the efficiency of the implemented converter and so, an optimization algorithm is established, that takes into consideration the design specifications and constraints. The proposed methodology is also verified with an experimental prototype.read more
Citations
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Journal ArticleDOI
Grid-connected isolated PV microinverters: A review
TL;DR: A comprehensive review of the most recent isolated topologies of grid-connected photovoltaic (PV) microinverters is presented in this article, where the power losses at different stages, control techniques, position of the decoupling capacitor, and cost analysis are analyzed.
Journal ArticleDOI
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.
Journal ArticleDOI
A comprehensive overview of the dc-dc converter-based battery charge balancing methods in electric vehicles
TL;DR: This paper presents a comprehensive overview of the DC-DC converter-based battery balancing system because of the impactful contribution to the charge balancing control and the design of balancing control algorithms.
Journal ArticleDOI
Hybrid Discontinuous/Boundary Conduction Mode of Flyback Microinverter for AC–PV Modules
TL;DR: In this article, a hybrid operating mode that combines both discontinuous conduction mode (DCM) and boundary conduction (BCM) during a utility grid period is presented, which improves converter performance as well as the efficiency and the power density on a wider power range.
Journal ArticleDOI
An Efficient and Cost-Effective Hybrid MPPT Method for a Photovoltaic Flyback Microinverter
TL;DR: The results prove the effectiveness of the proposed hybrid MPPT compared with the P$\&$ O method under uniform and dynamic weather conditions.
References
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Book
Table of Integrals, Series, and Products
TL;DR: Combinations involving trigonometric and hyperbolic functions and power 5 Indefinite Integrals of Special Functions 6 Definite Integral Integral Functions 7.Associated Legendre Functions 8 Special Functions 9 Hypergeometric Functions 10 Vector Field Theory 11 Algebraic Inequalities 12 Integral Inequality 13 Matrices and related results 14 Determinants 15 Norms 16 Ordinary differential equations 17 Fourier, Laplace, and Mellin Transforms 18 The z-transform
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Fundamentals of Power Electronics
TL;DR: Converters in Equilibrium, Steady-State Equivalent Circuit Modeling, Losses, and Efficiency, and Power and Harmonics in Nonsinusoidal Systems.
Journal ArticleDOI
A review of single-phase grid-connected inverters for photovoltaic modules
TL;DR: In this article, the authors focus on inverter technologies for connecting photovoltaic (PV) modules to a single-phase grid and categorize the inverters into four classifications: 1) the number of power processing stages in cascade; 2) the type of power decoupling between the PV module(s) and the single phase grid; 3) whether they utilizes a transformer (either line or high frequency) or not; and 4) the kind of grid-connected power stage.
Journal ArticleDOI
A Review of the Single Phase Photovoltaic Module Integrated Converter Topologies With Three Different DC Link Configurations
Quan Li,Peter Wolfs +1 more
TL;DR: In this paper, a topology study of the PV MICs in the power range below 500 W and covers most topologies recently proposed for MIC applications is presented, where the MIC topologies are classified into three different arrangements based on the dc link configurations.
Proceedings ArticleDOI
Accurate prediction of ferrite core loss with nonsinusoidal waveforms using only Steinmetz parameters
TL;DR: An improved calculation of ferrite core loss for nonsinusoidal waveforms separates a flux trajectory into major and minor loops via a new recursive algorithm that is highly accurate and outperforms two previous methods for measured data.