Analysis And Optimization Design Of Energy Efficiency Of Dual-load IPT System

The traditional magnetic coupling inductive radio power transmission(IPT)system is used in "one to one" mode for energy transmission.Compared with the single-load IPT system,the multi-load IPT system can realize the energy transmission of multiple energy channels at the same time.The energy utilization rate is high,which can be applied to more application environment and reduce the system cost.At the same time,the key factors that can be widely used in multi-load IPT system are energy transmission capacity and system efficiency.Therefore,it is very important to analyze and optimize the energy efficiency characteristics of multi-load IPT system.This paper analyzes and studies the one-to-two magnetic coupling inductive radio power transmission system.Through the establishment of mutual inductance coupling model of IPT system,the parameters that affect the energy transmission capacity and efficiency of IPT system are analyzed.The resonant compensation technology of the system is analyzed,and the primary compensation capacitor Cp of SS topology is not affected by the coupling coefficient k of the electromagnetic coupling mechanism Level circuit quality factor,the structure is relatively simple and easy to control,more suitable for multi-load situation and the existence of relative movement of the original system.Therefore,the paper focuses on the theoretical analysis and simulation of the energy efficiency of the SS-type topology IPT system based on an energy transmitter and two pickups.Based on the analysis of the energy efficiency of the dual load IPT system,the model of the double load IPT system is established on the basis of the mutual inductance coupling model of the single load IPT system.The factors that affect the output power and efficiency of the system are expounded theoretically.The influence of the single and double load switching,the change of the load size and the load offset on the energy efficiency of the system is analyzed,and the simulation is verified.Aiming at the problem of improving the efficiency of dual-load IPT system,the electromagnetic coupling mechanism model is optimized from the perspective of system mutual inductance coupling model and electromagnetic coupling mechanism.The traditional electromagnetic coupling mechanism model is replaced by DD-circle,and the DD-the circular structure is better;for how to increase the transmission power of the system,based on the system load characteristics,by adding the impedancecircuit in the secondary circuit,so that the two equivalent AC impedance to meet the maximum transmission power point The relationship between the load resistance,the theoretical analysis and simulation verify the feasibility of the strategy;for the stability of the system analysis,through theoretical deduction to ensure the stability of the system conditions.At the end of this paper,an experimental platform is set up on the basis of theoretical research and simulation analysis.The theory and simulation of optimization design are verified experimentally.The correctness of theoretical research and simulation analysis is verified by analyzing the experimental data.