Innovative Inductive Power Transfer Solutions for Electric Vehicles: A Focus on Electrified Roadways

Citation Author(s):
Franck Soleil
Mpio Mviri
Member, IEEE Power Electronics Society (PELS)
Submitted by:
Franck Soleil M...
Last updated:
Wed, 02/12/2025 - 03:39
DOI:
10.21227/wbbh-vx79
License:
Creative Commons Attribution
50 Views
Categories:
Power and Energy
Transportation
Keywords:
In-Motion Charging, Inductive Power Transfer (IPT), Inductive Coupler, Wireless Power Transfer (WPT), Dynamic Charging of Electric Vehicles
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Abstract 

This paper introduces an innovative inductive power transfer (IPT) system tailored for electric vehicle (EV) charging, emphasizing dynamic IPT implementations that utilize electrified roadways with integrated couplers. To tackle the challenges of complexity and reliability associated with current systems, we propose a Push-Pull Driven Coupler Array (PPCA) architecture. This design employs only N+1 switches to independently energize N primary couplers, enabling simultaneous activation of multiple couplers while mitigating current stress on the switches.

 The performance of the system is analyzed through a state-space model implemented in PLECS, which assesses efficiency and power transfer capabilities under varying conditions of coupling and self-inductance. Furthermore, a scaled prototype rated at 3.3 kW, featuring three primary and two secondary couplers, has been developed to validate the proposed configuration's effectiveness. This innovative approach promises enhanced reliability and efficiency in dynamic EV charging systems, paving the way for more accessible and efficient wireless charging infrastructures.

Instructions: 

  • Project instructions:

    1. Define Project Objectives: Focus on improving efficiency and reliability of dynamic IPT systems for EV charging.
    2. Conduct Literature Review: Identify limitations of existing IPT systems.
    3. Design System:
      • Create a push-pull driven coupler array using N+1 switches.
      • Ensure multiple primary couplers can be activated without increasing current stress.
    4. Simulation and Modeling:
      • Develop a state-space model in PLECS.
      • Simulate efficiency and power transfer under varying conditions.
    5. Prototype Development:
      • Build a scaled 3.3 kW prototype with three primary and two secondary couplers.
    6. Testing and Validation: Conduct thorough testing to validate the prototype's performance.
    7. Data Analysis: Analyze test data to assess effectiveness and improvements over existing systems.
    8. Documentation and Reporting: Document the project process, findings, and recommendations.
    9. Future Work: Suggest improvements and future research directions.

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