Output voltage control for series-series compensated wireless power transfer system without direct feedback from measurement or communication

Chung, Euihoon; Lim, Gyu Cheol; Ha, Jung‐Ik; Kim, Ki Young

doi:10.1109/ecce.2017.8096704

Cited by 7 publications

(6 citation statements)

References 8 publications

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“…Similarly, using (18) and (20), and ( 7) and ( 10), we obtained the following sensitivity coefficients of the function F 2 and each estimated parameter:…”

Section: Sensitivity Analysismentioning

confidence: 99%

“…However, these methods have certain drawbacks. The use of communication devices makes the system more complex and expensive [20], and increases energy consumption. In addition, the generated electromagnetic field from the IPT system may influence the radio-frequency link and disrupt the communication process, thus affecting the system reliability.…”

Section: Introductionmentioning

confidence: 99%

“…This could be particularly troublesome in high-power applications. Furthermore, data transmission time delay, caused by the communication link, leads to dynamic performance degradation of the IPT system [20]. Specifically, in certain conditions, such as underwater environments, high-speed wireless communication is not viable [21].…”

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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“…Similarly, using (18) and (20), and ( 7) and ( 10), we obtained the following sensitivity coefficients of the function F 2 and each estimated parameter:…”

Section: Sensitivity Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

et al. 2022

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“…In order to overcome the inherent problem on these systems, additional communication equipment has been commonly utilized to monitor and regulate output voltage [7]. However, due to the growing demand for miniaturization and cost reduction of receivers, a number of techniques have been studied for monitoring the load conditions and regulating the output voltage without a communication link [8][9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

“…This paper proposes a control method in an SS WPT system in order to overcome the limitation of digital controllers. Based on the previous research [16], further explanation and implementation are described in detail. Including a super-sampling and sub-sampling concept, several current reconstruction methods with limited sampling rates are investigated.…”

Section: Introductionmentioning

confidence: 99%

Cost-Effective High-Performance Digital Control Method in Series-Series Compensated Wireless Power Transfer System

Shin¹,

Chung²,

Park³

2020

Electronics

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This paper proposes a control method for a digital signal processor based series-series (SS) compensated wireless power transfer system. In the control method, load resistance and mutual inductance are identified simultaneously, and output voltage can be estimated by using only the primary side voltage and current without direct feedback from the secondary side circuit. Since this estimation method requires a complex mathematical calculation procedure, a digital signal processor is used in this system. One of the major disadvantages of using a digital controller in this system is a limitation of sampling rates. Therefore, in this paper, several current reconstruction methods with limited sampling rates are investigated and applied. As a result, this controller not only reduces the cost of the system but also shows good estimation performance within the limited digital controller unit resource. The proposed control concept is verified by experimental results with a 48W laboratory prototype.

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Dual Side Control of Wireless Power Transfer with Mutual Inductance Estimation

Sung

Min

2020

2020 IEEE Energy Conversion Congress and Exposition (ECCE)

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Output voltage control for series-series compensated wireless power transfer system without direct feedback from measurement or communication

Cited by 7 publications

References 8 publications

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

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

Cost-Effective High-Performance Digital Control Method in Series-Series Compensated Wireless Power Transfer System

Dual Side Control of Wireless Power Transfer with Mutual Inductance Estimation

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