Electrical excitation of the local earth for resonant, wireless energy transfer

A decade ago, non-radiative wireless power transmission re-emerged as a promising alternative to deliver electrical power to devices where a physical wiring proved impracticable. However, conventional "coupling-based" approaches face performance issues when multiple devices are involved, as they are restricted by factors like coupling and external environments. Zenneck waves are excited at interfaces, like surface plasmons and have the potential to deliver electrical power to devices placed on a conducting surface. Here, we demonstrate, efficient and long range delivery of electrical power by exciting non-radiative waves over metal surfaces to multiple loads. our modeling and simulation using Maxwell's equation with proper boundary conditions shows Zenneck type behavior for the excited waves and are in excellent agreement with experimental results. in conclusion, we physically realize a radically different class of power transfer system, based on a wave, whose existence has been fiercely debated for over a century.

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“…This pulls the reference potential of the metal to the same level as the grid ground. Thus, metal is transformed into a neutral entity 26 .…”

Section: Resultsmentioning

confidence: 99%

“…There exist many practical scenarios consisting of metallic infrastructures, such as nuclear plants, railway tracks, space ships, steel building structures, pipelines, etc. Practical applications include powering Internet of things (IoT) devices, charging for -marine vessels, smart manufacturing floors, and secured shipping containers [24][25][26] .…”

mentioning

confidence: 99%

Experimental Realization of Zenneck Type Wave-based Non-Radiative, Non-Coupled Wireless Power Transmission

Oruganti

Liu

Paul

et al. 2020

Sci Rep

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“…This pulls the reference potential of the metal to the same level as the grid ground. Thus, metal is transformed into a neutral entity 28 . The metal's behavior as a neutral point is covered in the supplementary material(section 3).…”

Section: Resultsmentioning

confidence: 99%

Experimental and Theoretical Realization of Zenneck Wave-based Non-Radiative, Non-Coupled Wireless Power Transmission

Oruganti¹,

Malik²,

Lee³

et al. 2019

Preprint

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A decade ago, non-radiative wireless power transmission re-emerged as a promising alternative to deliver electrical power to devices where a physical wiring proved to be unfeasible. However, existing approaches are neither scalable nor efficient when multiple devices are involved, as they are restricted by factors like coupling and external environments. Zenneck waves are excited at interfaces, like surface plasmons and have the potential to deliver electrical power to devices placed on a conducting surface. Here, we demonstrate, efficient and long range delivery of electrical power by exciting nonradiative waves over metal surfaces to multiple loads. Our modeling and simulation using Maxwells equation with proper boundary conditions shows Zenneck type behavior for the excited waves and are in excellent agreement with experimental results. In conclusion, we 1 arXiv:1903.10294v1 [physics.app-ph]

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“…Conservatively, the current density should not exceed 200 A/m 2 , in the vicinity of the grounded electrode for more than one second (Meijer, 1995). The efficient grounding was experimentally shown to result to maximum and efficient power transfer (Neste et al, 2016), albeit that was a wireless system.…”

Section: …………………… (8)mentioning

confidence: 99%

Potential for Increased Rural Electrification Rate in Sub-Saharan Africa using SWER Power Distribution Networks

Irechukwu

Mushi

2020

TJET

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Rural electrification rate (RER) in Africa is still low to date. Several countries in Sub-Saharan Africa have tried to address this problem using conventional single- phase two-wire or three-phase three-wire systems, however at large costs due to the nature of dispersed rural load centres, low load demand, and low population density. Another solution of off-grid generation creates associated health problems. Therefore, this paper undertakes a review of a single wire earth return (SWER) network as a RER improvement solution. The paper undertakes intensive literature review to elucidate challenges and solutions to the implementation of SWER technology. Advantages of SWER technology discussed make it the choice for RER improvement in Sub-Saharan African countries. After that, a case study is selected in rural Tanzania, and a preliminary SWER network design is undertaken.

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Electrical excitation of the local earth for resonant, wireless energy transfer

Cited by 16 publications

References 24 publications

Experimental Realization of Zenneck Type Wave-based Non-Radiative, Non-Coupled Wireless Power Transmission

Experimental Realization of Zenneck Type Wave-based Non-Radiative, Non-Coupled Wireless Power Transmission

Experimental and Theoretical Realization of Zenneck Wave-based Non-Radiative, Non-Coupled Wireless Power Transmission

Potential for Increased Rural Electrification Rate in Sub-Saharan Africa using SWER Power Distribution Networks

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