Adaptive Frequency Control of a Sensorless-Receiver Inductive Wireless Power Transfer System Based on Mixed-Compensation Topology

Koran, Ahmed; Badran, Khaled

doi:10.1109/tpel.2020.3000455

“…To this end, adding a gyrator in form of resonant T-block with a large enough impedance Xmp following requirement of (7) can improve the transfer efficiency, especially for weakcoupling conditions. Furthermore, the efficiency can be improved by adjusting the optimal load resistance for TTsystems determined by (9).…”

Section: B Loss-separation Strategy and Optimized Tt-systemsmentioning

confidence: 99%

“…Control methods for optimal efficiency tracking was introduced in [14], [15]. Most of the published works stands on predefined topologies such as SSsystems, LCCL/S systems, doubled LCC-systems, etc., to conduct the analyses on optimizing the power efficiency via frequency selecting [7]- [9], component designs [12], [13], [16] or control approach [14], [15]. These approaches lack comparative analyses on different topologies which may lead to missed guidance on choosing appropriate topologies for practical wireless transfer applications.…”

Section: Introductionmentioning

confidence: 99%

Loss-Separation Strategy to Improve Efficiency of Wireless High-Power Transfer Systems in Weak-Coupling Conditions

Hoach¹

2022

Preprint

0

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This paper proposes a loss-separation strategy to improve efficiency of inductive wireless high-power transfer systems (WPTs) in weak-coupling conditions. Wireless power transfer efficiency of inductive systems significantly reduces under weak-coupling states due to the increased losses associated with low mutual inductance. To overcome the challenge, this paper proposes a strategy to separate primary loss components from each other and from the weak-coupling stage. In the proposed strategy, a gyrator in form of a double-resonance T-block is added just before the weak-coupling stage to improve the overall efficiency. Then the strategy is realized by various topologies such as compensating circuits, added coils, isolated transformers, and integrated-/split- inductors/coils. Comparative analyses of the topologies are presented by considering practical aspects including component designs, power flows, transfer efficiency, resonance frequency shifting, and optimal loads. The comparative experiments show an efficiency increment of about four percent for the case with a coupling factor of 0.1. The proposed strategy offers suggestions for industrial designs of high-power wireless battery charging systems using resonant inductive coils. Loss-Separation Strategy to Improve Efficiency of Wireless High-Power Transfer Systems in Weak-Coupling Conditions

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“…The mentioned drawbacks have been addressed by several research efforts. That is, optimal resonance frequency tracking technique was proposed in [7]- [9]. Impedance matching techniques was introduced in [10], [11].…”

Section: Introductionmentioning

confidence: 99%

Loss-Separation Strategy to Improve Efficiency of Wireless High-Power Transfer Systems in Weak-Coupling Conditions

Hoach¹

2022

Preprint

0

View full text Add to dashboard Cite

This paper proposes a loss-separation strategy to improve efficiency of inductive wireless high-power transfer systems (WPTs) in weak-coupling conditions. Wireless power transfer efficiency of inductive systems significantly reduces under weak-coupling states due to the increased losses associated with low mutual inductance. To overcome the challenge, this paper proposes a strategy to separate primary loss components from each other and from the weak-coupling stage. In the proposed strategy, a gyrator in form of a double-resonance T-block is added just before the weak-coupling stage to improve the overall efficiency. Then the strategy is realized by various topologies such as compensating circuits, added coils, isolated transformers, and integrated-/split- inductors/coils. Comparative analyses of the topologies are presented by considering practical aspects including component designs, power flows, transfer efficiency, resonance frequency shifting, and optimal loads. The comparative experiments show an efficiency increment of about four percent for the case with a coupling factor of 0.1. The proposed strategy offers suggestions for industrial designs of high-power wireless battery charging systems using resonant inductive coils. Loss-Separation Strategy to Improve Efficiency of Wireless High-Power Transfer Systems in Weak-Coupling Conditions

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“…The key propulsion component in electric vehicles is the traction motor, which must have excellent power density and torque, a wide speed range, excellent performance, high dependability, and low distortion [25]. A hybrid control system improves the charging range and stability of electric vehicles under dynamic settings [26]. For EVs charging applications, L2CL-LCL Fig.…”

Section: Introductionmentioning

confidence: 99%

Novel L2CL-LCL Topology for Wireless Power Transmission PMSM Powered Electrical Vehicle

Jose¹,

Therattil²

2022

Intelligent Automation &Amp; Soft Computing

3

0

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The Wireless Power Transmission (WPT) technology is a significant source of operation in the field of power transmission with tremendous potential in a wide range of applications. This paper proposes a novel strategy for L2CL-LCL topology, which comprises two capacitors and one inductor in the essential and one capacitor and one inductor in the auxiliary. Using MATLAB simulation, this paper compares the traditional DSLCL system and the proposed L2CL-LCL. The various parameters of this system are simulated. In the current system, input and output power are set to 200.1 and 182.4 W. The common framework's start to finish efficiency can be estimated as 90.10%. The input and output power for the proposed framework is 224.2 and 211.05 W. The proposed framework has a general efficiency of 95.2%, which is greater than the traditional system. The output of this topology is taken care of to an electric vehicle powered by Permanent Magnet Synchronous Motor. The efficiency of the electric vehicle gets improved to about 65.5%, which is better than the average efficiency of an electric vehicle. The various parameters of the electric vehicle are simulated. The experimental analysis also proves that the results provided closely resemble theoretical research, demonstrating the superiority of the proposed system.

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Adaptive Frequency Control of a Sensorless-Receiver Inductive Wireless Power Transfer System Based on Mixed-Compensation Topology

Cited by 26 publications

References 31 publications

Loss-Separation Strategy to Improve Efficiency of Wireless High-Power Transfer Systems in Weak-Coupling Conditions

Loss-Separation Strategy to Improve Efficiency of Wireless High-Power Transfer Systems in Weak-Coupling Conditions

Loss-Separation Strategy to Improve Efficiency of Wireless High-Power Transfer Systems in Weak-Coupling Conditions

Novel L2CL-LCL Topology for Wireless Power Transmission PMSM Powered Electrical Vehicle

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