Research on Energy Harvesting Method Without Blind Spots for a Two-dimensional Omni-directional Wireless Power Transfer System With Integrated LCC-S Topology

DOI link: 10.13334/j.0258-8013.PCSEE.230520

Keywords: Wireless Power Transfer, Two-Dimensional Omnidirectional Energy Capture, Integrated LCC-S Topology, Magnetic Field Integrity, Zero-Phase Angle.

What - Clarification of the Core Content:

• This study focuses on a method to capture wireless power in a two-dimensional omnidirectional and blind spot-free manner.
• An integrated LCC-S topology approach is proposed to achieve this, by using two-dimensional orthogonal coils, addressing the balance between spatial magnetic field integrity and the complexity of current control strategies in WPT technology.

Why - Analysis of the Purpose:

• The study aims to solve the inherent issue of energy capture blind spots in two-dimensional WPT systems by proposing a novel topology that ensures a uniform magnetic field distribution.
• The study strives to simplify current control strategies necessary for achieving omnidirectional energy transfer without compromising the spatial magnetic field’s integrity.

How - Description of the Methods Used:

• A finite element model was used to simulate and analyze the proposed system, providing theoretical support for the design and validating the topological integration parameters necessary for the uniform magnetic field.
• The paper presents experimental results that corroborate the theoretical models and simulations, showing the system’s effectiveness in maintaining a consistent power transfer efficiency across various positions.

Key Findings and Insights:

• The prototype achieved a maximum system transfer efficiency when the receiving coil was at a specific rotation angle, indicating the success of the LCC-S topology in creating a uniform magnetic field.
• The system maintains over 60% efficiency across different positions of the receiving coil, ensuring reliable energy transfer without blind spots.

Examples of Critical Solutions Proposed:

• The study offers a practical solution to the challenge of blind spots in energy capture by adjusting system parameters dynamically to maintain optimal magnetic field distribution.

Research Gaps and Future Work:

• While the study demonstrates successful omnidirectional energy capture, there may be potential for further optimization of the system’s parameters and physical design for varying distances and orientations.
• Future studies may consider the scalability of the proposed system for different power levels and the integration into real-world applications.

Recommended citation: Xian Zhang, Ran Wang, Fengxian Wang*, Chaoyang Yuan, Mousong Li, Qingxin Yang, Zhongyu Dai. Research on Energy Harvesting Method Without Blind Spots for a Two-dimensional Omni-directional Wireless Power Transfer System With Integrated LCC-S Topology. Proceedings of the CSEE. 44(10).
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