Maximum Efficiency Tracking for Multitransmitter Multireceiver Wireless Power Transfer System on the Submerged Buoy

Xu, Jian; Li, Xingfei; Li, Hongyu; Xie, Ziming; Ma, Qingfeng

doi:10.1109/tie.2021.3063982

Cited by 22 publications

(8 citation statements)

References 33 publications

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“…The eddy current loss caused by seawater is another consumption that can be calculated by comparing the input power in air and water environments. Therefore, the overall efficiency is further reduced and can be calculated as follows: η water = P out P P in-water = P out P in +P eddy +P cir (19) where P in-water denotes the input power of the system in seawater; P eddy and P cir represent the eddy current loss and circuit loss, respectively.…”

Section: Circuit Characteristics Analysismentioning

confidence: 99%

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Design of a Highly Compatible Underwater Wireless Power Transfer Station for Seafloor Observation Equipment

Cai

Lyu

Wang

et al. 2023

JMSE

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Conventional cabled seafloor observatories (CSOs) power in-situ instruments via wet-mated or dry-mated direct electrical contact (DEC) connectors to achieve long-term and real-time observation. However, the DEC connectors have high risks of water leakage and short circuits in power feeding, especially under high water pressure. This paper proposes a highly compatible underwater station based on inductive wireless power transfer (IPT) technology to address the above reliability issue. A novel energy transmitter with runway-structure coils is applied to the proposed underwater station to cover a sufficient power feeding area so that various in-situ equipment can be powered with desirable misalignment tolerance. The magnetic field distribution is analyzed by both derivation and finite element analysis (FEA) methods, and the principal parameters of the transmitter are further optimized and compared with both the mixed-integer sequential quadratic programming (MISQP) algorithm and the evolutionary algorithm (EA) for better performance. The same results show a reliable optimization process. The WPT circuit characteristics are also investigated to power different loads and improve the power transmission efficiency. The output power decreases, and the transmission efficiency rises and then decreases as the load increases. In addition, receivers with higher mutual inductance have better transmission performance. A prototype of the underwater station has been tested both in air and in water, and the experimental results have proven it can power multiple seafloor observation instruments stably and achieve compatibility requirements. The maximum output power of the station prototype for testing is 100 W, and the maximum overall transmission efficiency is 61%.

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Section: Circuit Characteristics Analysismentioning

confidence: 99%

“…McGinnis et al detailed an IPT system for vertical mooring cabled McLane Mooring Profiler (MMP) vehicles deployed in the ALOHA-MARS Mooring (AMM) system [17]. Huang et al proposed a WPT system installed on a buoy [18,19]. Zhou et al built a 300 W IPT system for ocean observation.…”

Section: Introductionmentioning

confidence: 99%

Design of a Highly Compatible Underwater Wireless Power Transfer Station for Seafloor Observation Equipment

Cai

Lyu

Wang

et al. 2023

JMSE

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“…Compared with the traditional plug-in method, WPT has the advantages of safety, convenience and environmental adaptability [1]. Due to the superior characteristics, over the decade, it has been successfully used in medical devices [2], consumer electronics [3], drones [4], underwater equipment [5], electric vehicles [6,7] and so on.…”

Section: Introductionmentioning

confidence: 99%

An LCC‐S compensated wireless power transfer system using receiver‐side switched‐controlled capacitor combined semi‐active rectifier for constant voltage charging with misalignment tolerance

Wang

Deng

Chen

2023

IET Power Electronics

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The output characteristics of wireless power transfer systems are strongly susceptible to coupling and load variations. To achieve a constant voltage output under varying coupling and load, a voltage regulation method based on a combination of a semi‐active rectifier (SAR) and a switched‐controlled capacitor (SCC) is proposed for the LCC‐S topology. Adjusting the SAR can effectively regulate the voltage, and the introduction of SCC compensates the impedance brought by SAR, ensuring that the resonance condition is fully satisfied at the receiver side. Thus, the proposed wireless power transfer system can achieve zero phase angle over the entire load and coupling range, minimizing reactive power losses. This control method only needs to collect the signal from the receiver side, which enables single‐side control as well as avoids the wireless communication. The situation of coupler parameter drift due to misalignment is also considered. Even if the self‐inductance changes, the zero phase angle can be guaranteed on the receiving side by adjusting the SCC, and the zero voltage switching of the transmitter side can still be achieved. The principle prototype of 3 kW is constructed and the experimental results prove the effectiveness of the proposed method.

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“…The eddy current loss is detailed and analyzed in [8] and [9] to provide the design guidance for underwater inductive wireless power transfer systems. A multitransmitter multi-receiver (MT-MR) WPT system was presented in [10] for the application of the submerged buoy with the maximum efficiency tracking method, and a number of beacons could be charged at the same time to send more data. L. Yang, et.al, described a new design method to deal with the misalignment and the changeable distance between the transmitter side and receiver side of the UWPT system to get stable load regulation with the one-cycle control method [11].…”

Section: Iintroductionmentioning

confidence: 99%

Comparison Survey of Effects of Hull on AUVs for Underwater Capacitive Wireless Power Transfer System and Underwater Inductive Wireless Power Transfer System

Yang¹,

Zhang²,

Li³

et al. 2022

IEEE Access

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Underwater wireless power transfer (UWPT) system has attracted widespread attention. It has been used for power delivery for underwater equipment in the marine environment with high safety and convenience. However, the material of metal plates and the shape which will affect the high frequency alternating electromagnetic fields and the high frequency alternating electric fields for the inductive wireless power transfer (IPT) system and the capacitive wireless power transfer (CPT) system. This paper presents the effects of the hull of the autonomous underwater vehicle (AUV) on the underwater wireless power transfer system including the underwater capacitive wireless power transfer (UCWPT) system and underwater inductive wireless power transfer (UIWPT) system. The features of underwater wireless power transfer systems have been carefully studied with simulation and experimental work. The experimental water tank has been constructed with the 35‰ salinity water. The hull of AUVs has been respectively simulated and built with rectangle metal plates and curved metal plates. The original experimental data and phenomenon have been presented in this paper. The different performance of the UCWPT system and UIWPT system is provided and discussed in this paper. The comparison work with the related paper has been analyzed. This paper could be acted as the reference for designing the underwater wireless power transfer system for AUVs.INDEX TERMS Underwater wireless power transfer (UWPT), capacitive, material, shape, autonomous underwater vehicles (AUVs)

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Maximum Efficiency Tracking for Multitransmitter Multireceiver Wireless Power Transfer System on the Submerged Buoy

Cited by 22 publications

References 33 publications

Design of a Highly Compatible Underwater Wireless Power Transfer Station for Seafloor Observation Equipment

Design of a Highly Compatible Underwater Wireless Power Transfer Station for Seafloor Observation Equipment

An LCC‐S compensated wireless power transfer system using receiver‐side switched‐controlled capacitor combined semi‐active rectifier for constant voltage charging with misalignment tolerance

Comparison Survey of Effects of Hull on AUVs for Underwater Capacitive Wireless Power Transfer System and Underwater Inductive Wireless Power Transfer System

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