FEA-Based Optimisation of an Inserted-Shunt Integrated Planar Transformer for a Bidirectional CLLLC Resonant Converter

IF 1.7 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IET Power Electronics Pub Date : 2025-03-29 DOI:10.1049/pel2.70014

Sajad A. Ansari, Jonathan N. Davidson, Martin P. Foster

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Abstract

This paper presents an optimisation method for an inserted-shunt integrated planar transformer based on 3D simulation in Ansys Maxwell. The optimisation objective is enhanced efficiency and power density for the transformer. Thermal analysis verifies the optimisation to ensure the transformer's operability under limited temperature conditions when its size is reduced. The optimised integrated transformer is implemented for verification, with the presentation of experimental results, including AC resistance, efficiency, operating waveforms, and thermal imagery. Furthermore, the paper provides insight into the loss distribution of the transformer. The study shows that the optimisation enhances the power density of the inserted-shunt integrated planar transformer by 270% compared to the conventional design. Additionally, the CLLLC converter incorporating the optimised transformer achieves approximately 1.84 percentage points higher efficiency than the conventional design.

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双向CLLLC谐振变换器插入并联集成平面变压器的有限元优化

本文提出了一种基于Ansys Maxwell三维仿真的插入式并联集成平面变压器优化方法。优化的目标是提高变压器的效率和功率密度。热分析验证了优化，以确保变压器尺寸减小时在有限温度条件下的可操作性。对优化后的集成变压器进行了验证，并给出了实验结果，包括交流电阻、效率、工作波形和热图像。此外，本文还深入了解了变压器的损耗分布。研究表明，与传统设计相比，优化后的插入并联集成平面变压器的功率密度提高了270%。此外，采用优化变压器的CLLLC变换器的效率比传统设计高出约1.84个百分点。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IET Power Electronics ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

5.50

自引率

10.00%

发文量

195

审稿时长

5.1 months

期刊介绍： IET Power Electronics aims to attract original research papers, short communications, review articles and power electronics related educational studies. The scope covers applications and technologies in the field of power electronics with special focus on cost-effective, efficient, power dense, environmental friendly and robust solutions, which includes: Applications: Electric drives/generators, renewable energy, industrial and consumable applications (including lighting, welding, heating, sub-sea applications, drilling and others), medical and military apparatus, utility applications, transport and space application, energy harvesting, telecommunications, energy storage management systems, home appliances. Technologies: Circuits: all type of converter topologies for low and high power applications including but not limited to: inverter, rectifier, dc/dc converter, power supplies, UPS, ac/ac converter, resonant converter, high frequency converter, hybrid converter, multilevel converter, power factor correction circuits and other advanced topologies. Components and Materials: switching devices and their control, inductors, sensors, transformers, capacitors, resistors, thermal management, filters, fuses and protection elements and other novel low-cost efficient components/materials. Control: techniques for controlling, analysing, modelling and/or simulation of power electronics circuits and complete power electronics systems. Design/Manufacturing/Testing: new multi-domain modelling, assembling and packaging technologies, advanced testing techniques. Environmental Impact: Electromagnetic Interference (EMI) reduction techniques, Electromagnetic Compatibility (EMC), limiting acoustic noise and vibration, recycling techniques, use of non-rare material. Education: teaching methods, programme and course design, use of technology in power electronics teaching, virtual laboratory and e-learning and fields within the scope of interest. Special Issues. Current Call for papers: Harmonic Mitigation Techniques and Grid Robustness in Power Electronic-Based Power Systems - https://digital-library.theiet.org/files/IET_PEL_CFP_HMTGRPEPS.pdf