Start-Up and Saturation Optimization of High-Power Energy Harvester With Compound Topologies Overhead AC Transmission Line

Wang, Wei; Xu, Chenjin; Zhang, Cun; Chen, Chen

doi:10.1109/jestpe.2019.2941970

Cited by 8 publications

(3 citation statements)

References 16 publications

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“…However, in most designs, the demagnetization factor and energy density are challenging issues [45]. This has been an inspiration for researchers to propose a harvester that captures the maximum energy when the core is placed in saturation [48][49][50]. Authors in [46][47] explored the advantages of independent MEH methods and proposed a novel harvester, in which the path of the magnetic flux is directed in a helical core leading to a lengthened flux path.…”

Section: Independent Meh Methodsmentioning

confidence: 99%

Review and Analysis of Magnetic Energy Harvesters: A Case Study for Vehicular Applications

Enayati

Asef

2022

IEEE Access

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Energy harvesting (EH), as an enabling technology of energy derivation from ambient sources, has attracted much research attention in wireless sensor network (WSN) context. The magnetic energy harvester (MEH) introduces ambient energy harvesters' most promising technological development. This paper presents a review and analysis of MEH applications in WSN like vehicular systems and technologies. The successful approaches are introduced and classified based on technical characteristics and working principles. The fundamentals of their operation are discussed in detail, and the power points of each method are reviewed. To select the optimal energy harvester, in this work a case study is provided for feeding navigational sensors mounted on a rotating wheel of vehicles. Finally, the performance of the developed MEH model is evaluated and discussed for harvesting energy at the rotating wheels of a ground vehicle. To offer electromagnetic field analysis of the studied MEH, the simulations are performed in Ansys Maxwell software for further harvested power evaluation.

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Section: Independent Meh Methodsmentioning

confidence: 99%

Review and Analysis of Magnetic Energy Harvesters: A Case Study for Vehicular Applications

Enayati

Asef

2022

IEEE Access

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“…Where, the frequency is 50Hz, and the equivalent permeability of the iron core μ The cross sectional area S is calculated from the initial permeability of the core and the inner and outer side length, r1 ≈ 5mm, r2 ≈ 0.3 (R-r), N is the turn value, assuming the core mass is 7kg, and the conductor current Iin is 1A, so there is a problem of solving the conditional extremum of the binary function in determining the core parameters. The binary function and its constraint conditions and variable range are as follows (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15). Here, it is assumed that the iron core works in an unsaturated state.…”

Section: Physical Field Analysis (1) Model Establishmentmentioning

confidence: 99%

An adaptive energy acquisition power supply for power transmission line

Zhang¹,

Zong

Yin

et al. 2023

IEICE Electron. Express

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Reliable power supply is of great significance to the stable operation of the online monitoring device. This paper studies a kind of electric energy collection power supply based on the principle of current mutual inductance. The iron core is made of nanocrystalline alloy with high permeability, and the relationship between the number of turns and the energy consumption power is analyzed by equivalent circuit. A discharge circuit is formed by connecting multiple diodes in series to avoid oversaturation of the iron core, and the residual voltage on the diode supplies the load electric energy. Combined with simulation and experiment, the number of turns and the number of diodes in series are optimized, so that the power supply has high efficiency and is not easy to be deeply saturated. The rectifier bridge and DC-DC voltage regulator module are used to stabilize the output voltage. The test shows that the power supply can support reliable energy extraction within the range of wire current of 17A at least and 1000A at most, and can be applied to lines of various voltage levels.

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“…This method is not affected by the external environment, and it is a reliable and stable power supply method for online monitoring equipment. Meanwhile, the research on wireless power supply of transmission towers mainly focuses on improving the power taken by magnetic field energy harvester (Wang et al, 2019;Yan et al, 2022;Zeng et al, 2021), while there are relatively few researches on the long-distance, efficient and stable transmission of energy from transmission lines to monitoring equipment. Cai et al (2018) designed a new WPT system based on magnetic resonance coupling for 110 kV transmission tower monitoring equipment charging.…”

Section: Introductionmentioning

confidence: 99%

Research on optimal coil configuration scheme of insulator relay WPT system

et al. 2023

Self Cite

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This paper presents the optimized structure of the multi-relay coils insulator of WPT system. With the rapid development of the smart grid, on-line monitoring devices in the transmission tower have been widely used. However, the power supply problem has become an important bottleneck in the development of transmission tower intelligent sensing technology. Hence, the multi-relay coils wireless power transfer technology has been proposed to supply for the tower monitoring equipment in this paper. Compared with traditional multi-relay coils, the effects of the number, arrangement position and turns of relay coils on the performance of WPT system are further explored. The simulation results show that the operation performance of WPT can be significantly improved by optimizing the coil arrangement position and turns. Moreover, there are multiple configuration schemes that the design indexes of the system could be achieved. The experiment results show that in the 110 kV high-voltage transmission with the insulator length of 1.015 m, the transmitting power and efficiency of the WPT system could be increased to 1.81 W and 60.11% respectively by parameters optimization, which ensures the continuous and stable work of the monitoring equipment.

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Start-Up and Saturation Optimization of High-Power Energy Harvester With Compound Topologies Overhead AC Transmission Line

Cited by 8 publications

References 16 publications

Review and Analysis of Magnetic Energy Harvesters: A Case Study for Vehicular Applications

Review and Analysis of Magnetic Energy Harvesters: A Case Study for Vehicular Applications

An adaptive energy acquisition power supply for power transmission line

Research on optimal coil configuration scheme of insulator relay WPT system

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