Wireless Power Transfer (WPT) Fundamentals with Resonant Frequency-Dependent Parameters, Energy Transfer Efficiency, and Green Technology Applications

Allamehzadeh, Hamid

doi:10.1109/pvsc43889.2021.9518505

Cited by 10 publications

(4 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To improve the efficiency of the wireless charging system, we need to increase the frequency in the transmitter part, but there is a maximum limit for this phase. For this reason and based on [25,26], these simulation results show us the maximum allowable limit of the frequency. These were used to begin the simulation stage.…”

Section: Resultsmentioning

confidence: 69%

Inductive Power Transmission System for Electric Car Charging Phase: Modeling plus Frequency Analysis

Mohamed

Aymen

Alqarni

2021

WEVJ

View full text Add to dashboard Cite

The effectiveness of inductive power transfer (IPT) presents a serious challenge for improving the global recharge system performance. An electric vehicle (EVs) needs to be charged rapidly and have maximum power when it is charged with wireless technology. Based on various research, the performance of this recharge system is attached to several points and the frequency resonance is one of those parameters that can influence. In this paper, we try to explore the relationship between the obtained power and the signal input frequency for charging a lithium battery, solve the class imbalance problem and understand the maximum allowed frequency. To obtain the results, a mathematical model was first created to demonstrate the relationship, then the dynamic model was validated and tested using the Matlab Simulink platform. The performance of the worldwide wireless recharging system in terms of frequency variation is depicted in a summary graph.

show abstract

Section: Resultsmentioning

confidence: 69%

Inductive Power Transmission System for Electric Car Charging Phase: Modeling plus Frequency Analysis

Mohamed

Aymen

Alqarni

2021

WEVJ

View full text Add to dashboard Cite

show abstract

“…When the parameters of the resonant wireless power transmission system satisfy Equation (18), the frequency splitting at the maximum power point occurs in the overcoupling region. From Equation (22), it can be seen that the degree of frequency splitting at the end of maximum power is related to the coil quality factor, the equivalent load resistance on the secondary side, and the coupling coefficient of the two coils.…”

Section: Power-frequency Splitting Characteristicsmentioning

confidence: 99%

“…Furthermore, in the power transmission field, WPT technologies, including far-field methods like Magnetic Power Transfer (MPT) and Optical Power Transfer (OPT), offer long-distance energy transmission capabilities. These advancements successfully tackle challenges associated with transmission distance, supply range limitations, and the complexities of power line installation and maintenance in both urban and remote locales [22,23]. Lastly, WPT technology proves to be invaluable in extreme environments, such as underwater or in mining operations, ensuring the safety and operational efficiency of power supplies and electrical equipment under such conditions [24].…”

Section: Introductionmentioning

confidence: 99%

Research on Wireless Power Transfer Method for Intelligent Sensing Device of Non-Directly Buried Distribution Cables

He,

Zhang,

Zhou

et al. 2024

Electronics

View full text Add to dashboard Cite

This paper presents a study on the impact of circuit parameters on the transmission of electrical energy in wireless power transfer systems designed for intelligent sensing devices within the urban electric power Internet of Things (IoT). Relying on the essential principles of resonant mutual inductance models, the paper conducts an analytical investigation into the phenomena of power-frequency splitting characteristics, efficiency-frequency splitting characteristics, and efficacy synchronization characteristics within wireless energy transmission technologies. The investigation includes a detailed analysis of a wireless power transfer system model operating at 100 kHz, delineating how varying circuit parameters influence the system’s efficiency. Via the utilization of graphical software and computational programming for simulation modeling, this research delved into the dynamics between key parameters such as equivalent load and coupling coefficient and their influence on distinct splitting phenomena. This rigorous approach substantiated the validity of the proposed power-frequency and efficiency-frequency splitting characteristics outlined in the study. Based on the analytical results, it is shown that selecting an appropriate equivalent load or utilizing impedance matching networks to adjust the equivalent load to a suitable size is crucial in consideration of the system’s output power, voltage withstand level, and transmission efficiency. The research findings provide a theoretical basis for the design of wireless power supply systems for non-directly buried cable front-end sensing devices.

show abstract

“…Most of the research is on inductivewireless power transfer (IPT) and capacitive-wireless power transfer (CPT). IPT is widely applicable in the present market for its high-power transfer capability with a greater than 90% efficiency [6]. However, in recent years, capacitive-wireless power transfer (CPT) has gained attention because of its compact, cost-efficient, and flexible coupling nature [7].…”

Section: Introductionmentioning

confidence: 99%

8-Plate Multi-Resonant Coupling Using a Class-E2 Power Converter for Misalignments in Capacitive Wireless Power Transfer

Bezawada

Dhali

2022

Electronics

View full text Add to dashboard Cite

Misalignment is a common issue in wireless power transfer systems. It shifts the resonant frequency away from the operating frequency that affects the power flow and efficiency from the charging station to the load. This work proposes a novel capacitive wireless power transfer (CPT) using an 8-plate multi-resonant capacitive coupling to minimize the effect of misalignments. A single-active switch class-E2 power converter is utilized to achieve multi-resonance through the selection of different resonant inductors. Simulations show a widening of the resonant frequency band which offers better performance than a regular 4-plate capacitive coupling for misalignments. The hardware results of the 8-plate multi-resonant coupling show an efficiency of 88.5% for the 20.8 W test, which is 18.3% higher than that of the regular 4-plate coupling. Because of the wider resonant frequency band {455–485 kHz}, compared with the regular 4-plate coupling, the proposed design minimized the output voltage drop by 15% for a 10% misalignment. Even for large misalignments, the 8-plate performance improved by 40% compared with the 4-plate coupling.

show abstract

Wireless Power Transfer (WPT) Fundamentals with Resonant Frequency-Dependent Parameters, Energy Transfer Efficiency, and Green Technology Applications

Cited by 10 publications

References 18 publications

Inductive Power Transmission System for Electric Car Charging Phase: Modeling plus Frequency Analysis

Inductive Power Transmission System for Electric Car Charging Phase: Modeling plus Frequency Analysis

Research on Wireless Power Transfer Method for Intelligent Sensing Device of Non-Directly Buried Distribution Cables

8-Plate Multi-Resonant Coupling Using a Class-E2 Power Converter for Misalignments in Capacitive Wireless Power Transfer

Contact Info

Product

Resources

About