Marine renewable energy (i.e., wave, tidal or ocean current, thermal gradient, and salinity gradient), can revolutionize ocean observing capabilities and marine power supply method. Under the marine environment, as the conductive feature of seawater, it has big challenge for wireless power and signal transfer under marine environment. To deal with this issue, this paper provides an undersea wireless power and data transfer system with the shared channel which powered by renewable system. The power and data could be transferred with the same channel based on the time division multiplexing theory. In one switching cycle, the power is transferred in the first half switching cycle and the data is transferred in the second half switching cycle. The data is modulated by frequency-shift keying (FSK) modulation method. The frequency for power transfer is set as 240 kHz. With the FSK modulation method, the two signal carriers’ frequencies are respectively set 10 MHz and 2 MHz. The data could be completely transferred with the high bandwidth. The glass tank experimental platform is constructed with the 35‰ salinity water. The simulated and experimental results verify the theory analysis and the calculation very well.

中文翻译：

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由海洋可再生能源系统供电的具有共享信道的海底无线电力和数据传输系统

海洋可再生能源（即波浪、潮汐或洋流、热梯度和盐度梯度）可以彻底改变海洋观测能力和海洋供电方式。在海洋环境下，作为海水的导电特性，它对海洋环境下的无线电力和信号传输具有很大的挑战。针对这一问题，本文提出了一种由可再生能源系统供电的具有共享信道的海底无线电力和数据传输系统。基于时分复用理论，功率和数据可以在同一信道上传输。在一个开关周期中，在前半个开关周期中传输功率，在后半个开关周期中传输数据。数据通过频移键控（FSK）调制方法进行调制。电力传输的频率设置为 240 kHz。采用FSK调制方式，两个信号载波的频率分别设置为10 MHz和2 MHz。数据可以以高带宽完全传输。玻璃罐实验平台采用35‰盐度水搭建。仿真和实验结果很好地验证了理论分析和计算。