scholarly journals Control Strategy of Amplitude Regulation and Frequency Tracking for Wireless Charging Considering Load Characteristics

2020 ◽  
Vol 446 ◽  
pp. 042004
Author(s):  
Songcen Wang ◽  
Yanan Zhang ◽  
Bin Wei ◽  
Qingbin Tong
Keyword(s):  
Control Strategy ◽  
Wireless Charging ◽  
Frequency Tracking ◽  
Load Characteristics

scholarly journals Event-triggered H∞ position control of receiver coil for effective mobile wireless charging of electric vehicles

2017 ◽  
Vol 40 (14) ◽  
pp. 3994-4003
Author(s):  
Weihua Deng ◽  
Kang Li ◽  
Jing Deng
Keyword(s):  
Real Time ◽  
Electric Vehicle ◽  
Electric Vehicles ◽  
Control Strategy ◽  
Position Control ◽  
State Feedback Control ◽  
Receiver Coil ◽  
Wireless Charging ◽  
Charging Efficiency ◽  
Event Triggered

The emergence of dynamic wireless charging technologies brings about new possibilities for on-road real-time charging of electric vehicles in solving the battery bottleneck for the mass roll-out of electric vehicles worldwide. In this new area, charging efficiency is one of the most important issues to be addressed for on-road wireless charging. While most current research mainly focuses on the electronic power design of the charging system, little has been done to improve charging efficiency through real-time mechanical control. In this paper, a switch control strategy based on an event-triggered mechanism is proposed, to improve the charging efficiency when an electric vehicle moves along a power supply road track. An [Formula: see text] control problem is formulated and sufficient stabilization criteria are derived in the form of linear matrix inequalities when the electric vehicle derails from the effective charging range. Numerical simulation confirms that the proposed control approach outperforms the general state feedback control method. The developed control strategy is applied to control a newly built electric vehicle wireless charging test platform with desirable control performance.

scholarly journals Control Strategy for Vehicle Inductive Wireless Charging Based on Load Adaptive and Frequency Adjustment

Energies ◽  
2018 ◽  
Vol 11 (5) ◽  
pp. 1222 ◽  
Author(s):  
Shichun Yang ◽  
Xiaoyu Yan ◽  
Hong He ◽  
Peng Yang ◽  
Zhaoxia Peng ◽  
...  
Keyword(s):  
Control Strategy ◽  
Wireless Charging ◽  
Frequency Adjustment

Research on the Frequency Automatic Tracking in Ultrasonic Power Based on Fuzzy-DPLL

2013 ◽  
Vol 760-762 ◽  
pp. 1053-1057 ◽  
Author(s):  
Bai Da Qu ◽  
Zheng Long Ni
Keyword(s):  
Control Strategy ◽  
Power Supply ◽  
Fuzzy Controller ◽  
Design Method ◽  
Sudden Change ◽  
Phase Locked Loop ◽  
Ultrasonic Power ◽  
Frequency Tracking ◽  
Working Principle ◽  
Vibrate System

Traditional frequency-tracking technique of ultrasonic power often adopts analog phase locked loop circuit. But it has some defects, such as the narrow locked-inrange and the tendency to lose phase locked with a sudden change in load, etc. Therefore, this paper proposes a composed control strategy which combines a digital fuzzy controller with phase locked loop in DSP, and the working principle and design method are gived. The experimental results show that the ultrasonic power using Fuzzy-DPLL can realize quick and accurate frequency tracking, and it can make the vibrate system work stably and efficiently, and it improves the efficiency of the power supply.

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