The Research On DC/DC Parallel System With Wireless Communication Based On Multi Precision Coding

With the continuous development of science and technology,the demand for high-power supply is also increasing in power electronic system.However,due to the large switching stress and low reliability of single switching power supply,it is very difficult to design and apply,which makes the distributed power system receive extensive attention.As an important means of communication in the future,the combination of wireless communication technology and distributed system can reduce the complexity of physical connection,simplify the system,reduce the interference,and is also beneficial to the maintenance and reconstruction of the whole system.As one of the most common technologies in the field of communication,data compression is to achieve faster and more efficient storage and transmission of information.With the combination of wireless communication coparallel DC/DC system,not only can improve the utilization rate of effective data bits in the wireless transmission process,and under the condition of high-speed communication,it can effectively solve the contradiction between the data transmission cycle and the total data transmission.And in transmission rate,reduce the system cost in packing,unpacking time,reduce the delay of the system.This article main research content is as follows:(1)The topology of the Buck converter is analyzed,and the model of the main circuit is established.The parameters of the double loop PI control are designed.Based on the appropriate parallel current sharing control strategy and wireless communication technology,two Buck converter parallel DC/DC wireless communication system is established.(2)A method of multi-precision feedback coding is proposed,and its principle is analyzed.Finally,the design parameters of the complete multi-precision feedback coding are given.The correctness of the theory is verified by Matlab simulation.(3)Compared to wireless transmission of different width data delay time.Verilog language is used to write the program of the whole PI controller and the multi-precision feedback coding,and are verified by the experiments.The simulation results proved the effectiveness and correctness of the multi-precision feedback coding theory,and the experimental results illustrate that the proposed method can improve the utilization of the effective data bits and raise the switching frequency of the system.