Research And Implementation Of Energy-saving Monolithic Lithium Battery Test System

In recent years,because of the serious air pollution,the slogan of "energy saving and emission reduction" has been around us all.The development of "green energy" industry is obvious to all of us.The development of power trams is very fast,and electric vehicles,buses,and even some agricultural and industrial vehicles are also moving towards the development of power.This development is bound to lead to a large number of related industries,among which the development of the power battery industry is the most concerned.At present,the power unit lithium battery test equipment in the market is developing towards energy saving.Therefore,the design of a test equipment capable of energy saving,sampling real reaction battery performance and dynamic response is adapted to the development needs.The main research contents are as follows:1)Complete machine design scheme:First,introduce the three-level architecture(upper computer,lower computer and test equipment).The configuration of the upper computer is clearly pointed out,the main control chip of the lower computer is briefly introduced,and the advantages of the three-tier architecture are emphasized.Second,the structure of the whole machine is analyzed,and the design scheme of the chassis and the topological structure of ac-dc and dc-dc are determined.1)In hardware aspect,the following aspects are mainly studied:(1)The design and calculation method of transformer,inductor and capacitor are emphasized;(2)The characteristics,connection modes and matters needing attention of CAN communication are introduced.(3)The sampling circuit,control circuit and system power are introduced and designed in detail.In the main chip aspect,we choose TI high-performance TMS320F28335 PGFA with floating point operation.the main frequency reaches 150MHz;3)Software focuses on the software compile environment CCS,program design ideas.The filter algorithm,PID control algorithm and single and double loop control methods are studied.4)Learning and simulating the power part through MATLAB software,verify the feasibility of topological structure and power device parameters through simulation waveform and data.5)List the equipment names and models used in the test,introduce specific measurement methods,and analyze the test data.Finally,this paper summarizes the design and finds out the problems and proposes the development direction of the next energy-saving monolithic lithium battery test system.