Investigation of microwave power transfer near sea surface with 2D parabolic equation method

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

IET Power Electronics Pub Date : 2024-10-19 DOI:10.1049/pel2.12770

Jinyi Hui, Rong Bao, Jingkuan Mu, Xiang Chi, Chunliang Liu

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Abstract

Due to the existence of the evaporation duct near-sea-surface described as an inhomogeneous refractive index of atmosphere, microwaves can be trapped in the duct and propagate along it. To investigate wireless power transfer (WPT) over the sea surface, we utilize the two-dimensional parabolic equation to calculate the electric field distribution and to obtain the transferred power. By analysing the propagation results with specific evaluation functions, we obtained the proper conditions for long-distance WPT over the sea surface. When the initial field distributes uniformly on the one-meter aperture, the frequency is 12 GHz, and the centre position is 4 m, a unique focusing spot can be obtained in the duct and nearly 5%, 8%, and 12% of the initial power remains at a distance of 10 km with a receiving aperture of 1, 2, and 3 m, respectively. The presented WPT scheme near the sea surface has potential applications in the power supply or charging for ships or small islands.

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用二维抛物线方程法研究海面附近的微波功率传输

由于近海表面存在被描述为大气不均匀折射率的蒸发管道，微波会被困在管道中并沿着管道传播。为了研究海面上的无线功率传输（WPT），我们利用二维抛物线方程来计算电场分布并获得传输功率。通过用特定的评估函数分析传播结果，我们得到了海面上长距离 WPT 的适当条件。当初始电场在一米孔径上均匀分布、频率为 12 GHz、中心位置为 4 米时，可在导管中获得一个独特的聚焦点，并且在接收孔径为 1 米、2 米和 3 米的情况下，在 10 千米的距离上分别保留了近 5%、8% 和 12% 的初始功率。所提出的海面附近 WPT 方案有望应用于船舶或小岛屿的供电或充电。

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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