Design of the wireless power transfer system with uncompensated secondary to increase power transfer capability

Nutwong, Supapong; Sangswang, Anawach; Naetiladdanon, Sumate

doi:10.1049/cp.2016.0291

Cited by 8 publications

(2 citation statements)

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“…With the removal of the capacitor on the secondary coil, the effect of the reflected reactance is cancelled through a proper selection of the primary compensated capacitor. This means that the problem of frequency deviation due to the reflected impedance from the secondary circuit is minimized [120]. The important advantages of the S-compensation include less component count and the complexity of the WPT system with an increased power transfer capability and less distortion on the primary current compared with the SS topology.…”

Section: A Modification and Combination Of Classics Compensations Tomentioning

confidence: 99%

Compensation Topologies in IPT Systems: Standards, Requirements, Classification, Analysis, Comparison and Application

et al. 2019

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Wireless power transfer devices are becoming more relevant and widespread. Therefore, an article is devoted to a review, analysis and comparison of compensation topologies for an inductive power transfer. A new classification of topologies is developed. A lot of attention is paid to the problems of the physical fundamentals of compensation work, standards, safety, and five main topology requirements. It is determined, that topologies with the series primary compensating are the most effective in the IPT for charging devices among the four classical schemes. The series-parallel solution is recommended in case of the low output voltage, minimum size of a secondary side coil is achievable. The series-series solution does not depend on the magnetic coupling coefficient and the load on the resonance frequency. For the convenience of displaying and understanding the information, the comparison results are listed in the tables, graphs and dependencies. The main suitable topologies for a certain application are defined. The given conclusions provide a ''one-stop'' information source and a selection guide on the application of compensation topologies both in terms of devices and in terms of power level that is the main value of this paper. During literature analysis and recent trends in the market for wireless power transmission devices, the main possible further ways of developing topologies are underlined. First of all, it concerns increasing the frequency of resonance of compensation topologies, the use of multilevel / multi-pulse / multicoils structures, the study of existing high-frequency semiconductors and the development of the semiconductor and magnetic materials.

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Section: A Modification and Combination Of Classics Compensations Tomentioning

confidence: 99%

Compensation Topologies in IPT Systems: Standards, Requirements, Classification, Analysis, Comparison and Application

et al. 2019

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“…The commonly used compensation topologies are series-series (SS), series-parallel (SP), parallelseries (PS), and parallel-parallel (PP) as illustrated in Fig. 2 [4][5][6]. Parallel compensation on the primary side as in PP and PS requires an additional inductor to form a current source, which increases the cost and complexity of the system.…”

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confidence: 99%

Output Voltage Control of the SP topology IPT system based on Primary side Controller operating at ZVS

et al. 2017

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This paper presents a technique to control the output voltage of a series-parallel (SP) topology inductive power transfer (IPT) system using only a controller, located on the primary side. This reduces the cost, size, complexity and loss of the system compared to conventional IPT dual-side controllers. An asymmetrical duty cycle control (ADC) of full-bridge inverters was used to control the DC output voltage to its designed value. Additionally, a zero voltage switching (ZVS) operation can be obtained at all power levels by varying the switching frequency of the inverter. Theoretical analysis was performed through a mutual inductance coupling model and verified by computer simulation. Experimental results of the circular magnetic structure IPT system with an adjustable air-gap confirm the validity of the proposed controller. The system efficiency was improved throughout the operation and the improvement became obvious as the output power was decreased.

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Active Tuning of Wireless Power Transfer System for compensating coil misalignment and variable load conditions

Murliky

Porto

Brusamarello

et al. 2020

AEU - International Journal of Electronics and Communications

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Design of the wireless power transfer system with uncompensated secondary to increase power transfer capability

Cited by 8 publications

References 0 publications

Compensation Topologies in IPT Systems: Standards, Requirements, Classification, Analysis, Comparison and Application

Compensation Topologies in IPT Systems: Standards, Requirements, Classification, Analysis, Comparison and Application

Output Voltage Control of the SP topology IPT system based on Primary side Controller operating at ZVS

Active Tuning of Wireless Power Transfer System for compensating coil misalignment and variable load conditions

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