Analysis of 4th-order LCLC resonant power converters

Ang, Yong-Ann; Foster, M. P.; Bingham, C.M.; Stone, D.A.; Sewell, Harry; Howe, D.

doi:10.1049/ip-epa:20040218

Cited by 16 publications

(6 citation statements)

References 8 publications

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“…The classification and a comparison of different topologies of multi-element RPCs are presented in Huang et al (2011) and Outeiro and Buja (2015). The LCLC topology of fourth-order RTs is presented in Ang (2006) and Outeiro et al (2016b). This topology combines the LLC and LCC properties.…”

Section: Multi-element Resonant Power Converters Topologiesmentioning

confidence: 99%

Resonant Power Converters for Renewable Energy Applications: A Comprehensive Review

et al. 2022

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Studies on resonant power converters (RPCs) have received much attention due to the rapid growth of their potential in modern power and renewable energy applications such as photovoltaic, electric vehicles, wind, and fuel cells. Consequently, a significant number of studies focusing on RPC topologies for renewable energy applications is available. Generally, these studies have addressed several aspects, such as the development of their soft switching feature, smooth waveforms, high power density, and high efficiency. With this in mind, the present paper aims to review the development of the RPCs, challenges in their development, and comparison between common topologies as highlighted in literature. In addition, the use of RPCs in various applications of renewable energy is highlighted, focusing on some of the recently utilized topologies based on their constructions and achievements. There are still several issues and challenges in research that need to be considered for future improvement of the RPC performance in renewable energy applications. The improvement may require modifications on the circuit design or control strategies.

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Section: Multi-element Resonant Power Converters Topologiesmentioning

confidence: 99%

Resonant Power Converters for Renewable Energy Applications: A Comprehensive Review

et al. 2022

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“…Primary side can be supplied from low voltage source; and the secondary side can serve as HF power supply for hardening of materials (up to 100 kHz), HV source for X-ray equipment (Cavalante and da, 2006) or as a first stage for matrix converter system (Dobrucky et al, 2012). Basic operation in "linear mode" of LCTLC converter is already known and was published in Ang et al (2004).…”

Section: Modeling and Analysis Of Lctlc Invertermentioning

confidence: 99%

Analysis of non-linear inverter circuitry of LCTLC topologie

Dobrucký

Frivaldský

Koscelnik

2015

COMPEL

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Purpose -Many electric circuits feature some type of non-linearity of their used devices. Non-linear resistors or inductors could be typical examples. Also, all semiconductor devices are in their nature non-linear ones. The simulation models are very important parts of the design of the devices in various fields of industry. Multiply (multiple) simulation, verified by the measurement on the physical sample, help to improve the converter design by understanding the current and voltage behavior of non-linear elements. The paper aims to discuss these issues. Design/methodology/approach -Mathematical model of LCTLC inverter was made. Fictitious exciting function was applied on LCTLC inverter model. The non-linear inductance with the real core EFD model has been created and consequentially used for MatLab simulation experiments. MatLab and OrCAD/PSpice simulation results were compared with experimental measurements carried out on physical sample. Findings -The authors have found how to simulate non-linear resonant circuits within mathematical apparatus using fictitious exciting function method. The authors provided comparisons between proposed simulation mathematical model and relevant physical sample. Multiply simulations can help to improve the converter design by understanding the current and voltage behavior of non-linear elements.Research limitations/implications -The proposed method is applicable for simulation purposes. The only limitation is that MatLab model does not include hysteresis curve of the core, therefore it has to be modeled. Practical implications -The design of power supplies (switched mode power supplies, UPS and resonant inverter). Originality/value -Research in the area of behaviors of non-linear components in resonant circuits.

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“…The dynamical model of resonant inverter can be created by using of different approaches [2], [3]. State-space operation of the LCLC filter is investigated in [4], [5].The state-space equations for equivalent circuit with R-L load yield where -currents through the inductors and , respectively -current through the load -capacitors voltages of and , respectively -output voltage of the converter (filterś input voltage).…”

Section: Figure I Equivalent Circuit Of Lctlc Inverter With Rl Loadmentioning

confidence: 99%

Modelling of Dynamical Properties of a Resonant Converter under Step Frequence- and Loaded Converter Changes

Prazenica¹,

Kascak²,

Koscelnik³

et al. 2015

Proceedings of the 2015 International Conference on Modeling, Simulation and Applied Mathematics

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Paper deals with investigation of two problems: frequency step changes, and step switching-off of the load of LCTLC resonant inverter. Since the changes of frequency in the range from f min to f max are desirable to be the input current of the LCTLC circuit not greater than nominal one, the load changes cause dangerous overvoltage spikes. Modelling, theoretical analysis and computer simulation are used for the solution of those phenomena. Simulation experiment results confirming theoretical assumptions are given in the paper.

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Analysis of 4th-order LCLC resonant power converters

Cited by 16 publications

References 8 publications

Resonant Power Converters for Renewable Energy Applications: A Comprehensive Review

Resonant Power Converters for Renewable Energy Applications: A Comprehensive Review

Analysis of non-linear inverter circuitry of LCTLC topologie

Modelling of Dynamical Properties of a Resonant Converter under Step Frequence- and Loaded Converter Changes

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