摘要
针对电感耦合无线电能传输系统中能量传输通道实现数字信号实时、反向传输问题,基于S/LCC型谐振拓扑结构,提出一种高频载波注入式的无线能量与信号反向同步传输系统。首先构建系统模型,从理论上分析能量传输通道和信号传输通道中的电路特性与电压增益。其次对能量传输和信号传输之间的串扰进行分析,得到系统参数对系统传输特性影响的一些规律。然后从兼顾能量传输和信号传输的角度进行参数设计,最后,搭建传输功率为20 W的能量与信号同步反向传输系统实验平台。实验结果表明:输出功率从10 W变化到30 W时,输出电压在额定电压的±5%内波动。在实现负载端电压相对稳定的基础上,信号传输具有高速率低误码率的优点,传输速率为200 kbps时,误码率仅为0.1%左右,验证了该系统的可靠性和有效性。
Due to the presence of achieving the need of real-time and reverse digital data transmission in inductive coupled wireless power transmission system via the power transfer coupling coils, a high frequency carrier injection wireless power and date reverse synchronous transmission system was proposed based on S/LCC resonance topology. Firstly, the system model was constructed to theoretically analyze the circuit characteristics and voltage gain in the power transmission channel and data transmission channel. Secondly, the crosstalk between power transmission and data transmission was analyzed, and some rules of the influence of system parameters on transmission characteristics were obtained. Then the parameter design was carried out from the perspective of taking into account power transmission and data transmission. Finally, the experimental platform of power and data synchronous reverse transmission system with transmission power of 20 W was built. The experimental results show that when the output power changes from 10 W to 30 W, and the output voltage fluctuates within ±5% of the nominal voltage. On the basis of relatively stable output voltage, the data transmission has the advantages of high speed and low bit error rate, the bit error rate is only about 0.1% at the data transmission rate of 200 kbps. These results verify the reliability and effectiveness of the proposed system.
作者
靖永志
冯伟
谯柯
王森
静国衡
龚倩文
JING Yong-zhi;FENG Wei;QIAO Ke;WANG Sen;JING Guo-heng;GONG Qian-wen(Key Laboratory of Magnetic Suspension Technology and Maglev Vehicle,Ministry of Education,Chengdu 611756,China;School of Electrical Engineering,Southwest Jiaotong University,Chengdu 611756,China)
出处
《电机与控制学报》
EI
CSCD
北大核心
2022年第7期37-46,共10页
Electric Machines and Control
基金
国家自然科学基金(52077183)。
关键词
无线电能传输
信号反向传输
共享通道传输
S/LCC补偿
串联注入式
ASK
wireless power transmission
reverse date transmission
shared channel transmission
S/LCC resonance
tandem injection
amplitude shift keying
