A receiver position estimation scheme in wireless power transfer system

Jiang, Qi; Yuan-nian, Qin; Zhao, Y. B.; Xu, Cheng‐Zhong; Wang, Xiaodong

doi:10.1109/icce.2018.8326251

Cited by 2 publications

(3 citation statements)

References 6 publications

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“…The main advantages of the proposed technique were low cost; however, the transfer distance was short. Jiang et al [16] implemented WPT employing an MRC to enhance the transfer power efficiency between coils for small household appliances and implanted devices with a 6.78 MHz operating frequency. The system included a power source and coils in the receiver and transmitter.…”

Section: Related Workmentioning

confidence: 99%

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Design of Powering Wireless Medical Sensor Based on Spiral-Spider Coils

Mahmood

Gharghan

Mohammed

et al. 2021

Designs

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Biomedical sensors help patients monitor their health conditions and receive assistance anywhere and at any time. However, the limited battery capacity of medical devices limits their functionality. One advantageous method to tackle this limited-capacity issue is to employ the wireless power transfer (WPT) technique. In this paper, a WPT technique using a magnetic resonance coupling (MRC-WPT)-based wireless heart rate (WHR) monitoring system—which continuously records the heart rate of patients—has been designed, and its efficiency is confirmed through real-time implementation. The MRC-WPT involves three main units: the transmitter, receiver, and observing units. In this research, a new design of spiral-spider coil was designed and implemented for transmitter and receiver units, respectively, to supply the measurement unit, which includes a heart rate sensor, microcontroller, and wireless protocol (nRF24L01) with the operating voltage. The experimental results found that an adequate voltage of 5 V was achieved by the power component to operate the measurement unit at a 20 cm air gap between the receiver and transmitter coils. Further, the measurement accuracy of the WHR was 99.65% comparative to the benchmark (BM) instrument. Moreover, the measurements of the WHR were validated based on statistical analyses. The results of this study are superior to those of leading works in terms of measurement accuracy, power transfer, and Transfer efficiency.

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Section: Related Workmentioning

confidence: 99%

“…Most research on IC-WPT uses it to enhance power transfer and efficiency at different air-gap distances between coils [12][13][14][15]. One study used MRC-WPT to improve the Transfer efficiency for small household appliances and implanted devices [16].…”

Section: Introductionmentioning

confidence: 99%

Design of Powering Wireless Medical Sensor Based on Spiral-Spider Coils

Mahmood

Gharghan

Mohammed

et al. 2021

Designs

View full text Add to dashboard Cite

show abstract

“…This technology requires that the resonance frequency of the transmitting coil and the receiving coil is the same [6,7]. In addition, load change and transmission distance change and other factors may cause system detuning [8,9]. In reference [10], an adaptive tuning method of the magnetic amplifier is adopted, which tracks the phase difference between the power supply and the load voltage, and adjusts the controllable inductance at the same time.…”

Section: Introductionmentioning

confidence: 99%

Detuning Control of Resonant Wireless Energy Transmission System Based on CGI-PLL

Qian¹,

Wang²,

Zhang³

2019

JEEE

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At present, in the practical application of magnetic resonance wireless transmission technology, because of the change of distance, relative position between transmitting coil and receiving coil and load, the output power and transmission efficiency of transmission system will be greatly affected. Therefore, in order to improve the output power and transmission efficiency. In this paper, a new frequency tracking control algorithm based on Cascaded Generalized Integrator PLL (CGI-PLL) structure is proposed. The new frequency tracking control algorithm is used in the series-series circuit of magnetic resonance. It is planned to use this algorithm when the transmitting coil is detuning to a certain extent and the receiving coil is resonant at the same time. The phase compensation and soft switch are realized by controlling the phase difference between the output voltage and the output current of the primary side inverter. The experimental results show that the phase between the output voltage and the output current of the primary measurement inverter can remain unchanged when the load and mutual inductance are changed. Therefore, the CGI-PLL detuning control algorithm can actively track the frequency of the system, improve the output power and transmission efficiency of the system, and provide conditions for the operation of ZVS soft switch. It is proved that the new control algorithm proposed in this paper is feasible and correct.

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A receiver position estimation scheme in wireless power transfer system

Cited by 2 publications

References 6 publications

Design of Powering Wireless Medical Sensor Based on Spiral-Spider Coils

Design of Powering Wireless Medical Sensor Based on Spiral-Spider Coils

Detuning Control of Resonant Wireless Energy Transmission System Based on CGI-PLL

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