A novel noncommunication-based inductive power transfer control technique for battery charging application

IF 1.7 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Guocun Li, Xuewei Pan, Danyang Bao, Zhouchi Cai, Avneet Kumar
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Abstract

In order to realize the precise control of the output voltage and current of the inductive power transfer (IPT) battery charging system, wireless communication-based control are generally employed in a lot of existing works. However, the stability of the IPT converter will be impaired if communication fails. This paper proposes a novel noncommunication-based control strategy with a simple switched controlled capacitor design at the receiver side of the IPT system. A series-inductor–capacitor–capacitor compensation network is selected to verify the proposed control strategy. Without feedback wireless communication, the proposed IPT system can realize reliable constant current and constant voltage output control over full load range at a fixed switching frequency. At the receiver side, switched controlled capacitor is introduced to control reactive current and convey the output-side information to the transmitter side in the form of impedance angle. At the transmitter side, impedance angle is detected in real time, and phase shift control is introduced to regulate the output voltage or current of the system. Detailed analysis, implementation, hardware realization of the proposed noncommunication-based control is presented in this paper. A 250 W experimental prototype is built in the laboratory to verify the proposed control strategy. Constant voltage and constant current for battery charging application are realized through noncommunication-based control. Zero voltage switching over full range of load and minimized reactive current are achieved, which allows high efficiency operation. Compared with existing work in the literature, the proposed noncommunication-based control provides the benefits of reduced hardware cost, higher system reliability and stability.

Abstract Image

一种新型的基于非通信的电池充电感应功率传输控制技术
为了实现感应功率传输(IPT)电池充电系统输出电压和电流的精确控制,在现有的很多工作中普遍采用基于无线通信的控制。但是,如果通信失败,IPT转换器的稳定性将受到影响。本文提出了一种新颖的非通信控制策略,在IPT系统的接收端采用简单的开关控制电容设计。采用串联电感-电容-电容补偿网络对所提出的控制策略进行了验证。在无反馈无线通信的情况下,该IPT系统可以在固定开关频率下实现全负荷范围内可靠的恒流恒压输出控制。在接收端引入开关控制电容控制无功电流,并将输出端信息以阻抗角的形式传递给发送端。在发射端实时检测阻抗角,并引入相移控制来调节系统的输出电压或电流。本文给出了所提出的非通信控制的详细分析、实现和硬件实现。在实验室中建立了一个250w的实验样机来验证所提出的控制策略。通过非通信控制实现了电池充电应用的恒压恒流。实现全负荷零电压切换,无功电流最小,运行效率高。与已有文献相比,本文提出的非通信控制方法具有硬件成本低、系统可靠性和稳定性高等优点。
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来源期刊
IET Power Electronics
IET Power Electronics ENGINEERING, ELECTRICAL & ELECTRONIC-
CiteScore
5.50
自引率
10.00%
发文量
195
审稿时长
5.1 months
期刊介绍: IET Power Electronics aims to attract original research papers, short communications, review articles and power electronics related educational studies. The scope covers applications and technologies in the field of power electronics with special focus on cost-effective, efficient, power dense, environmental friendly and robust solutions, which includes: Applications: Electric drives/generators, renewable energy, industrial and consumable applications (including lighting, welding, heating, sub-sea applications, drilling and others), medical and military apparatus, utility applications, transport and space application, energy harvesting, telecommunications, energy storage management systems, home appliances. Technologies: Circuits: all type of converter topologies for low and high power applications including but not limited to: inverter, rectifier, dc/dc converter, power supplies, UPS, ac/ac converter, resonant converter, high frequency converter, hybrid converter, multilevel converter, power factor correction circuits and other advanced topologies. Components and Materials: switching devices and their control, inductors, sensors, transformers, capacitors, resistors, thermal management, filters, fuses and protection elements and other novel low-cost efficient components/materials. Control: techniques for controlling, analysing, modelling and/or simulation of power electronics circuits and complete power electronics systems. Design/Manufacturing/Testing: new multi-domain modelling, assembling and packaging technologies, advanced testing techniques. Environmental Impact: Electromagnetic Interference (EMI) reduction techniques, Electromagnetic Compatibility (EMC), limiting acoustic noise and vibration, recycling techniques, use of non-rare material. Education: teaching methods, programme and course design, use of technology in power electronics teaching, virtual laboratory and e-learning and fields within the scope of interest. Special Issues. Current Call for papers: Harmonic Mitigation Techniques and Grid Robustness in Power Electronic-Based Power Systems - https://digital-library.theiet.org/files/IET_PEL_CFP_HMTGRPEPS.pdf
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