Self-oscillating half bridge series resonant converter at high efficiency

2012 ◽  
Author(s):  
Hamed Belloumi ◽  
Ferid Kourda
Keyword(s):  
High Efficiency ◽  
Resonant Converter ◽  
Series Resonant

Computer-Aided Design and Optimization of High-Efficiency LLC Series Resonant Converter

2012 ◽  
Vol 27 (7) ◽  
pp. 3243-3256 ◽  
Author(s):  
Ruiyang Yu ◽  
Godwin Kwun Yuan Ho ◽  
Bryan Man Hay Pong ◽  
Bingo Wing-Kuen Ling ◽  
James Lam
Keyword(s):  
Computer Aided Design ◽  
High Efficiency ◽  
Resonant Converter ◽  
Design And Optimization ◽  
Series Resonant ◽  
Computer Aided ◽  
Aided Design

scholarly journals A bidirectional resonant converter based on wide input range and high efficiency for photovoltaic application

2019 ◽  
Vol 10 (3) ◽  
pp. 1469 ◽  
Author(s):  
Ibrahim Alhamrouni ◽  
M. R. Bin Hamzah ◽  
Mohamed Salem ◽  
Awang Jusoh ◽  
Azhar Bin Khairuddin ◽  
...  
Keyword(s):  
High Efficiency ◽  
Voltage Regulation ◽  
Resonant Converter ◽  
Power Conditioning ◽  
Dc Voltage ◽  
Switching Losses ◽  
Photovoltaic Application ◽  
Series Resonant ◽  
Input Range ◽  
Selection Of

<span lang="EN-US">This work highlights a modular power conditioning system (PCS) in photovoltaic (PV) applications which consists with a DC-DC converter. The converter is able to regulate and amplify the input DC voltage produced by the PV panal. The implementation of Mosfet as bidirectional switch on the converter yields greater conversion ratio and better voltage regulation than a conventional DC-DC step up converter and PWM resonant converter. It also reduces the switching losses on the output DC voltage of the converter, as the MOSFET switches on primary winding of converter switch on under ZVS conditions. The proposed resonant converter has been designed, with the modification of series resonant converter and PWM boost converter that utilizes the high frequency of AC bidirectional switch to eliminate the weaknesses of used converters. The topology of the proposed converter includes the mode of operations, designing procedure and components selection of the new converter elements. This topology provides a DC output voltage to the inverter at range of about 120Vac-208 Vac. </span>

scholarly journals A Piecewise Control Strategy for a Bidirectional Series Resonant Converter

Electronics ◽  
2018 ◽  
Vol 7 (12) ◽  
pp. 374 ◽  
Author(s):  
Sheng-Zhi Zhou ◽  
Xiaodong Li ◽  
Guo Chen ◽  
Song Hu
Keyword(s):  
Control Strategy ◽  
High Efficiency ◽  
Low Voltage ◽  
Storage System ◽  
Design Procedure ◽  
Energy Storage System ◽  
Current Control ◽  
Resonant Converter ◽  
Analysis And Design ◽  
Series Resonant

An energy storage system (ESS) plays an important part in a renewable energy generation system for stable and efficient power harvesting. To realize the function of an ESS, a bidirectional DC/DC converter with high power density and high efficiency is highly desired. In this paper, a high-frequency (HF) isolated dual-bridge series resonant converter (DBSRC) with a piecewise control strategy is proposed for an application with a wide variation of voltage gain. The proposed control strategy is based on dual-phase-shift modulation for a balance between complexity and flexibility. With this proposed control strategy, zero-voltage switching is kept for all switches on the low-voltage side and half of switches on the high-voltage side. Besides, there is no circulation energy on the low-voltage high-current side for full load operation. A step-by-step design procedure is also included to calculate the converter components and control parameters. Verification of the analysis and design are performed successfully through simulation and n experimental test. Comparisons with some existing control methods are also made experimentally, which highlights that the proposed control strategy is able to achieve comparable performance as the reported optimal current control with simpler calculation and implementation.

DEVELOPMENT OF A FAST WIRELESS BATTERY CHARGING TECHNOLOGY FOR ACCUMULATORS USED IN CLEAN ENERGY TRANSPORT VEHICLES. STATIC CHARACTERISTICS OF A SERIES-TO-SERIES RESONANT CONVERTER FOR CONTACTLESS INDUCTIVE ENERGY TRANSMISSION

2019 ◽  
pp. 56-61
Author(s):  
Huang ChunXiang ◽  
Henadiy Pavlov ◽  
Mykhailo Pokrovskyi ◽  
Andriy Obrubov ◽  
Iryna Vinnychenko
Keyword(s):  
Supply Voltage ◽  
Clean Energy ◽  
Resonant Converters ◽  
Resonant Converter ◽  
Output Current ◽  
Energy Transmission ◽  
Battery Charging ◽  
Electromagnetic Processes ◽  
Series Resonant ◽  
Pulse Count

The research object is the electromagnetic processes in the semiconductor power converters based on the schemes with circuit commutation and containing resonant circuits of reactive elements and transformers with a small coupling coefficient. The research aim is to develop a technology for a fast wireless battery charging for the use in clean energy vehicles, which would be based on a resonant converter with a pulse-count adjustment with a phase shift control. The latter provides a high energy performance in a wide range of regulation and a low sensitivity to changes in the magnetic system parameters. This is a final report. The report presents the results of the work performed in accordance with the Terms of Reference for the second stage of the scientific and research work. The following theoretical problems have been solved: development of a mathematical model of a series resonant converter with a pulse-count adjustment for contactless inductive energy transmission, which provided a high accuracy for the studies of the electromagnetic processes in the power section of multi-circuit resonant converters for contactless energy transmission, as well as an opportunity to assess the energy parameters of multi-circuit converters at pulse-count adjustment; compilation of mathematical dependencies of the average input and output current values on the number of half-cycles of resonant oscillations during energy transmission to the circuit and energy dissipation, the supply voltage and the resonant circuit’s parameters, which allowed assessing the converter’s energy parameters over a wide control range; compilation of the dependencies of the converter’s output power and coefficient of efficiency on the number of halfcycles of resonant oscillations during energy transmission to the circuit and energy dissipation, on supply voltage and on the resonant circuit’s parameters, which made it possible to evaluate the efficiency of the pulse-count adjustment of resonant converters for contactless energy transmission; realization of a dynamic model of a resonant converter for contactless energy transmission in the form of transfer functions for small disturbances caused by fluctuations in supply voltage, which made it possible to estimate the effect of its instability on the quality of output current stabilization.

scholarly journals Analysis and Pareto Frontier Based Tradeoff Design of an Integrated Magnetic Structure for a CLLC Resonant Converter

Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1756
Author(s):  
Gang Wang ◽  
Qiyu Hu ◽  
Chunyu Xu ◽  
Bin Zhao ◽  
Xiaobao Su
Keyword(s):  
Magnetic Structure ◽  
Power Density ◽  
High Efficiency ◽  
Pareto Frontier ◽  
Optimization Procedure ◽  
Magnetic Core ◽  
Pareto Optimization ◽  
High Power Density ◽  
Resonant Converter ◽  
Conduction Loss

This paper proposes an integrated magnetic structure for a CLLC resonant converter. With the proposed integrated magnetic structure, two resonant inductances and the transformer are integrated into one magnetic core, which improves the power density of the CLLC resonant converter. In the proposed integrated magnetic structure, two resonant inductances are decoupled with the transformer and can be adjusted by the number of turns in each inductance. Furthermore, two resonant inductances are coupled to reduce the number of turns in each inductance. As a result, the conduction loss can be reduced. The trade-off design of the integrated magnetic structure is carried out based on the Pareto optimization procedure. With the Pareto optimization procedure, both high efficiency and high-power density can be achieved. The proposed integrated magnetic structure is validated by theoretical analysis, simulations, and experiments.

Sign in / Sign up

Export Citation Format

Share Document