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Dynamic Process Analysis and Voltage Stabilization Control of Multi-Load Wireless Power Supply System

Author

Listed:
  • Shujing Fan

    (School of Electrical Engineering, Shandong University, Jinan 250061, China)

  • Zhizhen Liu

    (School of Electrical Engineering, Shandong University, Jinan 250061, China)

  • Guowen Feng

    (School of Electrical Engineering, Shandong University, Jinan 250061, China)

  • Naghmash Ali

    (School of Electrical Engineering, Shandong University, Jinan 250061, China)

  • Yanjin Hou

    (Shandong Provincial Key Laboratory of Biomass Gasification Technology, Energy Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China)

Abstract

At present, wireless power supply technology has gradually attracted people’s attention due to its safety, convenience, and portability. It has become one of the development trends of power supply for future technologies such as electric vehicles. In many engineering applications, inductive wireless power supply systems need to supply power to multiple loads at the same time. Therefore, it is necessary to analyze the dynamic process of the multiload system. This paper first selects the optimal compensation network according to the stable operating conditions of the multiload system. Secondly, in order to classify and describe the movement state of the load in the dynamic process, the simulation model is established on the MATLAB/SIMULINK platform to analyze the influence of the mutual inductance or resistance of any load on the output characteristics of the primary system and other loads. Then, in order to solve the problem of unstable output voltage used by multiple loads entering the same track at the same time or load resistance changes, this paper adopts a secondary side control strategy. The duty cycle of the Buck circuit is adjusted by the fixed frequency PWM sliding mode controller (PWMSMC), so as to realize the independent control of each load. Finally, an experimental platform was established to verify the correctness of the theoretical analysis.

Suggested Citation

  • Shujing Fan & Zhizhen Liu & Guowen Feng & Naghmash Ali & Yanjin Hou, 2021. "Dynamic Process Analysis and Voltage Stabilization Control of Multi-Load Wireless Power Supply System," Energies, MDPI, vol. 14(5), pages 1-18, March.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:5:p:1466-:d:512723
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    References listed on IDEAS

    as
    1. Naghmash Ali & Zhizhen Liu & Yanjin Hou & Hammad Armghan & Xiaozhao Wei & Ammar Armghan, 2020. "LCC-S Based Discrete Fast Terminal Sliding Mode Controller for Efficient Charging through Wireless Power Transfer," Energies, MDPI, vol. 13(6), pages 1-18, March.
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