Development Of Wireless Power Supply System For Underwater Landscape Light

With the change of people’s ideology and life style, people demand much more on the quality of urban life, and the traditional street lamp with single function can not meet people’s needs. Landscape lighting is attracting the public’s attention and increasingly favored with its unique artistic charm. At present, cable power supply is universal applied to Underwater Landscape Light.But this method has many invincible shortcomings due to its bad environment, such as limited protection strength of underwater light, power supply security risks, wiring construction difficulties, late maintenance trouble. Inductive Coupled Power Transfer(ICPT) can realize contactless power transfer from stationary source to electric equipment through coupling magnetic,that solved above problems in the traditional power supply mode. The ICPT tech meets the needs of electrical equipment safety, effciency, flexibility and intelligence in people’s daily life, and it has deep influence on the development of landscape light.ICPT technology is based on Faraday’s electromagnetic induction law, it combines of power electronics convert technology, magnetic coupling technology and modern control theory and methods. ICPT has increasingly received wide attention in the industry and academia with its feature, such as simple principle, easy to implement,high transmission efficiency in the near distance and large transmission power, and ICPT technology has been a popular research project. Therefore, this paper studied a design flow and method for small and medium-sized power level ICPT system, and100 W wireless power supply system is developed to achieve the power wireless transmission, which mainly based on the ICPT technology principle and control method.The main works of the paper include:(1) Firstly, the paper described the fundamental structure and principle of ICPT system, and the technical requirements of wireless power supply system is analyzed to determine circuit structure of the system.(2) Secondly, comparison and analysis are made on advantages and disadvantages of several high frequency inverter circuit, resonant network model, rectifier and filter circuit, and voltage stabilizing circuit, that aiming at the design of main circuit of the system.(3) Thirdly, the design of coupling mechanism of the system is introduced in thispaper, and the mathematical formula of the system is established with Mathcad software to study parameter design and components selection of the circuit.(4) Fourthly, the system protection circuit, driving circuit and other auxiliary circuits are designed in this paper.(5) Finally, the paper simulated the control effect of the system with Simulink software and set up the experimental platform to verify the function of the system.