Control system proposal for detection of optimal operational point of series–series compensated wireless power transfer system

Frivaldský, Michal; Jaros, Viliam; Špánik, Pavol; Pavelek, Miroslav

doi:10.1007/s00202-020-00963-2

Cited by 5 publications

(3 citation statements)

References 20 publications

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“…Load current can be estimated using (17). However, due to the purely resistive nature of the load, the load current characteristic is actually a linear scale of the load voltage and load resistance.…”

Section: B Experimental Resultsmentioning

confidence: 99%

“…Among them, the primary-side control method is gaining more popularity. Such control configuration is a trade-off between the system's cost, complexity, and size, including energy efficiency performance [17]. Specifically, the power flow and battery charging process are accomplished by adjusting the primary-side voltage and/or operating frequency.…”

Section: Introductionmentioning

confidence: 99%

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Steady-State Multiple Parameters Estimation of the Inductive Power Transfer System

et al. 2022

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In this paper, we proposed a novel steady-state multiple parameters estimation method of the two-coil inductive power transfer (IPT) system based on the measurement of the primary-side voltage and current fundamentals. The method is used to estimate key parameters, such as mutual inductance and equivalent load resistance, as well as receiver self-inductance and compensation capacitance values, and the total parasitic resistance of the secondary side. The method also allows the identification of the secondaryside resonant frequency. The parameters estimation procedure involves three operating modes of the IPT system: 1) open-circuit of the secondary side, 2) short-circuit of the secondary side, and 3) load connection. Each of these modes allows the identification of different parameters. To make the system operate in predefined modes, two switches are added to the receiver circuit. These switches are controlled from the secondary side, while the parameters estimation process, including load voltage and/or current control, is fully conducted on the primary side. The experimental tests on the prototype have validated the proposed method and demonstrated its effectiveness. The method can be applied to a new generation of highperformance wireless battery charging systems, where the single transmitter unit can be used to charge the battery pack in different devices.INDEX TERMS Inductive power transmission, parameters estimation, mutual coupling.

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Section: B Experimental Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Steady-State Multiple Parameters Estimation of the Inductive Power Transfer System

et al. 2022

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“…The separate receiver and transceiver parts of the wireless charging station lead to the two microcontroller and blocks interfaces (the measure and semiconductor drive). Problems related to proper control have already been discussed in detail in [31], while the described techniques are relevant for the proposed design of the WPT system.…”

Section: Control and Drive Methodsmentioning

confidence: 99%

Generalized Design Approach on Industrial Wireless Chargers

et al. 2020

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The paper briefly discusses the most important standards and regulations established for high-power wireless power transfer systems and introduces the main issues concerned with the conceptual design process. It analyses the electromagnetic design of the inductive magnetic coupler and proposes key formulas to optimize its electrical parameters for a particular load. The method applies to both the resistive load and the battery charging. It also suggests basic topologies for conceptual design of power electronics and discusses its proper connection to the grid. The proposed design strategy is verified by experimental laboratory measurement including analyses of the leakage magnetic field.

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Comparison of power transistors for WPT power inverter 44kW

Škorvaga,

Frivaldský

2023

Transportation Research Procedia

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Control system proposal for detection of optimal operational point of series–series compensated wireless power transfer system

Cited by 5 publications

References 20 publications

Steady-State Multiple Parameters Estimation of the Inductive Power Transfer System

Steady-State Multiple Parameters Estimation of the Inductive Power Transfer System

Generalized Design Approach on Industrial Wireless Chargers

Comparison of power transistors for WPT power inverter 44kW

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