随着中国海洋资源开发,水下探测设备被大量布置在海域内,其电能供给成为装置长期运行面临的重大难题。针对以上问题,提出一种基于波浪能和光伏互补供电的水下电能传输装置,利用波浪能和太阳能的天然互补性,能为装置提供稳定电力来源,同时结合无线电能传输的非接触特性,实现海洋环境下探测设备电能安全传输。通过对发电系统设计、耦合装置分析、动态互感识别、能量传输设计以及双侧协调控制,实现水下电能传输和最大效率跟踪控制。最后,搭建实验平台进行海水环境中电能传输实验,结果表明：装置能实现约260 W电能传输,且互感从20 μH到50 μH变化时,能通过互感识别和双侧控制实现在负载区间20 Ω到50 Ω变化时,恒压模式下维持最大效率在90%左右。
Abstract
With the development of China's marine resources, underwater detection equipment is arranged in large quantities in the sea, and its power supply has become a major problem facing the long-term operation of the device. In view of the above problems, this paper proposes an underwater power transmission device based on complementary power supply of wave energy and photovoltaic, which can provide a stable power source for the device by taking advantage of the natural complementarity of wave energy and solar energy, and at the same time, combine with the non-contact characteristics of radio energy transmission, to realise the safe transmission of power for detection equipment in the marine environment. Through the design of the power generation system, analysis of the coupling device, identification of dynamic mutual inductance, design of energy transmission, and coordinated control of both sides, the underwater power transmission and maximum efficiency tracking control are realized. Finally, the experimental platform is built and experiments on seawater power transmission are carried out, and the results show that the device is able to achieve a power transmission of about 260 W, and when the mutual inductance varies from 20 μH to 50 μH, the mutual inductance recognition and bilaterally coordinated control are able to achieve the output of about 90% of the maximum efficiency in the constant voltage mode when the load interval varies from 20 Ω to 50 Ω.
关键词
波浪能 /
太阳能 /
电能传输 /
最大效率跟踪 /
双侧控制 /
互感识别
Key words
wave energy /
solar energy /
power transmission /
maximum efficiency tracking /
bilateral control /
mutual sense identification
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基金
国家自然科学基金面上项目（41876096）; 江苏省自然科学青年基金（BK20201034）; 江苏省配电网智能技术与装备协同创新中心（XTCX202002）
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