Energy Control Research And Implementation For Hybrid System Of The Super Capacitor And Lithium Battery

Energy and environment are the two big themes in today’s world. Pure electricdrive is the only way for the development of the next generation of automotivetechnology. The composition of the lithium battery and super capacitor has greatimpact on such problems. This thesis will research on the energy control strategybased on a self-developed test system. The main contents are as follows:The thesis analyzed principles of the super capacitor and working characteristicof electric vehicles, and then it discussed the structures of the hybrid power. TheDC/DC converter in parallel system was selected.It designed a hybrid system test platform and introduces how to manage thehybrid power energy by controlling the output current of DC/DC converter. The thesisanalyzed multi-objective dynamic programming to improve control efficiency andoptimize energy control effectiveness.It analyzed the software design of the test platform, it presented a four-level andthree-mode framework model and The Unified Modeling Language (UML) wasapplied for system requirements analysis.The experiment on the test platform to evaluate the energy control strategy waspresented. The thesis analyzed the results of the control strategy based onmulti-objective dynamic programming energy control. The results show that theenergy management control strategy achieves the expected goal.The thesis provides the analysis of the super capacitor lithium battery hybridpower structure design and control strategy, it has certain reference significance forthe optimization design and practical application of the hybrid power.