RESEARCH ON THE CONTROL STRATEGY OF UNDERWATER WIRELESS ENERGY TRANSMISSION OF WAVE-OPTICAL COMPLEMENTARY DEVICE BASED ON MUTUAL SENSING DYNAMIC IDENTIFICATION
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.
wave energysolar energypower transmissionmaximum efficiency trackingbilateral controlmutual sense identification
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