摘要
为探索新型便利的电力传输技术,该文结合之前提出的空间电场耦合单线电力传输(single-wire power transmission,SWPT)系统及其集总参数电路模型,开展了多种基于电路结构和参数的仿真研究。包括输入输出阻抗、输出电压、输出功率,以及传输效率的频率特性;特斯拉变压器高压线圈上端导体对地电容、传输距离、负载阻抗等参数对SWPT系统性能的影响。在仿真过程中,对SWPT系统的电磁现象和规律进行了解释,讨论了两个不同谐振频率的特点,分析了影响传输功率和传输效率的关键因素。最后构建了单线电力传输示范系统,并在室内和室外环境下进行试验,传输距离分别为10和30m,最大传输功率达到80W。单线电力传输的研究可视为实现长无线电力传输的关键步骤之一。
In order to explore novel and convenient electric power transmission technology, several types of simulation i, were carded out based on the circuit model of spatial electric field coupled single-wire power transmission （SWPT） system proposed previously by authors. The frequency characteristics of input/output impedance, output voltage, output power and transfer efficiency were studied by simulation. Moreover, it was analyzed through simulation that the effect of some key parameters, such as capacitance of high voltage winding of Tesla＇s transformer, transfer distance, and load impedance etc. on the performances of SWPT. During simulation the electromagnetic phenomena and rules of the SWPT system were explained. The properties of two＇ different resonant frequencies were also discussed, and the key factors which may influence the transmission power and efficiency were point Out. In the last, the demonstration of SWPT system was constructed and introduced. The experimental results both in the labor and on the square were reported under the conditions of transfer distance of 10m and 30m, with maximum power reaching 80 watts. The research on the single-wire power transmission can be treated as one of the key steps towards the long distance wireless power transmission.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2017年第19期5749-5758,共10页
Proceedings of the CSEE
基金
高等学校博士学科点专项科研基金(20110041110016)~~
关键词
空间电场
单线电力传输
仿真
构建
space electric field
single-wire powerIransmission
simulation
construction
