用于家用电器的双负载无线电能传输系统的研究

发布时间：2018-06-22 01:18

本文选题：无线电能传输 + 双负载　；参考：《哈尔滨工业大学》2014年硕士论文

【摘要】：无线电能传输技术（Wireless Power Transfer，简称WPT）与传统的供电方式相比，，具有安全性、便捷性、兼容性等优点，因此具有较大的研究价值与广阔的应用前景。随着技术不断发展，无线电能传输的方式不断丰富，包括电磁感应式（IPT）、电磁共振式（MR-WPT）、电磁辐射式（MPT）等多种无线电能传输方式得到了发展与应用。近年来，无线电能传输技术在生物医学、电动汽车、家用电器等众多领域均有不俗的贡献。本文集中于电磁感应式无线电能传输技术在中等功率家用电器上的应用，重点针对双负载无线电能传输（DIPT）系统设计及其传输特性进行研究。本文首先利用互感模型建立等效电路，通过理论推导，得出了不同谐振补偿结构下反应DIPT系统传输特性的相关指标，具体包括反映阻抗、功率传输能力、传输效率、频率分叉临界条件。利用OrCAD与MATLAB软件，对各参数对系统传输特性的影响规律进行了探讨，具体包括耦合系数、双负载阻值、工作频率等，同时分析了IPT系统从单负载模式切换到双负载模式的稳态变化情况。其次，完成了DIPT系统设计工作，具体包括硬件电路设计（逆变电路、吸收回路等）；磁耦合机构设计：通过仿真分析选择了合适的补偿结构，利用Ansoft Maxwell对线圈结构进行了优化设计。最终得到了工作频率在60kHz附近，双负载输出功率均为700W左右，效率最高可达92%的实验装置。结合仿真结果，通过一系列特性实验验证了DIPT系统的传输特性，具体包括变负载特性实验、侧移特性实验、单双负载对比实验。仿真结果与实验结果所呈现的传输功率和效率随负载、耦合系数等参数的变化规律基本一致。此外，本文利用MATLAB仿真与实验方法研究了IPT系统电机负载特性，对无线电能传输技术在家用电器上的应用进行了扩展。最后，对DIPT系统的功率协调控制方式进行了探讨，通过OrCAD仿真和实验验证相结合的方式对变载、变频、电容调节三种方式进行了可行性分析。结果显示了电容调节方式在理论上对双负载功率协调有一定的调节功能。
[Abstract]:Wireless Power transfer (WPT) has the advantages of security, convenience, compatibility and so on, compared with the traditional power supply, so it has great research value and broad application prospect. With the continuous development of technology, radio energy transmission methods are becoming more and more abundant, including electromagnetic induction (IPT), electromagnetic resonance (MR-WPT), electromagnetic radiation (MPT) and many other radio energy transmission methods have been developed and applied. In recent years, radio energy transmission technology has made great contributions in biomedical, electric vehicles, household appliances and many other fields. This paper focuses on the application of electromagnetic induction radio energy transmission technology in medium power household appliances, focusing on the design of dual load radio energy transfer (DIPT) system and its transmission characteristics. In this paper, the equivalent circuit is established by using mutual inductance model. By theoretical derivation, the related parameters of DIPT system transmission characteristics under different resonant compensation structures are obtained, including reflecting impedance, power transmission capacity and transmission efficiency. Critical condition of frequency bifurcation. By using the software of OrCAD and MATLAB, the influence of various parameters on the transmission characteristics of the system is discussed, including coupling coefficient, double load resistance, working frequency, etc. At the same time, the steady state change of IPT system from single load mode to double load mode is analyzed. Secondly, the design of DIPT system is completed, including hardware circuit design (inverter circuit, absorption circuit, etc.), magnetic coupling mechanism design: through simulation analysis, the appropriate compensation structure is selected. The coil structure is optimized by Ansoft Maxwell. Finally, an experimental device with working frequency of 60 kHz and output power of about 700W with the highest efficiency of 92% is obtained. Combined with the simulation results, the transmission characteristics of DIPT system are verified by a series of characteristic experiments, including variable load characteristic experiment, lateral shift characteristic experiment, single and double load contrast experiment. The simulation results are consistent with the experimental results in terms of transmission power and efficiency with load, coupling coefficient and other parameters. In addition, the load characteristics of IPT system motor are studied by MATLAB simulation and experiment method, and the application of radio energy transmission technology in home appliances is extended. Finally, the power coordinated control mode of DIPT system is discussed, and the feasibility of variable load, frequency conversion and capacitor regulation is analyzed by combining OrCAD simulation with experimental verification. The results show that the capacitive regulation method has a certain function of regulating the dual load power coordination in theory.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM724

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