Design And Development Of A Deep-sea "One-to-Many" Wireless Power Transfer And Communication System

At present,wired cables or batteries are commonly used to power deep-sea engineering equipment.Deep-sea cables are expensive to manufacture and prone to leakage and electrical accidents,while batteries have limited capacity and are difficult to sustainably power equipment over extended periods of time.Wireless energy transmission technology provides a new approach to address this issue.Magnetic induction coupling wireless power transfer technology uses electromagnetic induction principle to convert energy from the electric field to the magnetic field through the transmitting coil,and then convert the energy back to electricity through the receiving coil for output.This power supply method can achieve full sealing of the system,simplify the structure of the transmission device,and improve equipment reliability.This paper proposes a system solution based on the principle of magnetic induction coupling wireless power transfer,which can provide wireless stable power supply and wireless communication capabilities for multiple loads in deep-sea environments.Unlike traditional underwater wireless power supply solutions,this system solution can expand the number of power supply devices according to demand,significantly reducing equipment costs and design complexity.The solution can be divided into hardware system design and software system design.The hardware system design includes wireless power supply circuit,voltage stabilization and measurement control circuit,wireless communication circuit,and other hardware devices.The wireless power supply circuit design analyzes the characteristics of LCC-S and NS compensation structures under multiple load conditions and performs parameter design and MATLAB simulation.The voltage stabilization and measurement control circuit adopts an efficient four-switch Buck-Boost circuit with Cortex-M3 architecture microprocessor as the main controller,and integrates functions such as parameter acquisition and information transfer.The wireless communication circuit uses a 433 MHz wireless communication module to realize star-shaped network communication between devices.The software system design includes lower computer measurement and control system software based on theμC/O-IISI operating system platform and desktop interactive monitoring software based on the.NET form development tool.The lower computer software realizes functions such as voltage regulation feedback control,wireless communication transfer,and circuit protection,while the desktop software realizes functions such as system operation parameter display,control command issuance,abnormal parameter detection,data visualization display,and data backup.The proposed system solution has undergone modular testing and assembly and sealing with glue according to the system design,and the pressure resistance and water tightness of the system have been tested,proving that it can work at a depth of 4000 m in the deep sea.After the system assembly is completed,the power supply and communication capabilities of the system on land and underwater were tested.The experimental results show that the proposed system solution can realize deep-sea multi-load stable power supply and communication functions,with a maximum output power of more than 150 W and a communication rate of up to 100kbps.