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Study on Battery Intelligent Management System of Power Lithium-Ion Power Batteries for Electric Monorail

Author: ZhaoPingQiang
Tutor: XuKeBao
School: Shandong University of Science and Technology
Course: Measuring Technology and Instruments
Keywords: LiFePO4 Intelligent equalization High-efficiency flyback conversion CC2500 State of charge
CLC: TM912
Type: Master's thesis
Year: 2010
Downloads: 92
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Abstract


With the develop of science and mankind’s need for clean energy, high capacity power lithium battery LiFePO4 has been already widely used in industrial etc. The cycle efficiency and safety have been become the primary element for the development of power batteries. For this reason, the excellent batteries management system must be designed, which can further the application of power lithium battery, and There is a security and commercial significanceThe electric crane series batteries management system, including the electric quantity gauge system, the status management system and the equalization control system, was studied in this paper. The BMS can real-time measure The single battery voltage, The current, The batteries voltage and The temperature etc., to prevent the batteries unreasonable use, to ensure the availability and The safety. Against for The battery diversity, this system presents efficient power conversion system focusing on flyback conversion, which achieves energy balance in batteries charging, to avoid The Thermal management, which was brought by traditional method. FurThermore, the paper analyzes the state of charge to a certain extent, which offers the reference for battery reasonable use. Finally; it constructs the wireless module by CC2500, realizing The BMS and charging machine and PC wireless communications.The paper mainly introduced the system design program and the main function mold hardware circuit and software design, at the same time adopted the hardware and software anti-jamming measure, enhanced the system reliability. The BMS research will further the application of large-capacity lithium-ion battery powered in industrial field etc., showing social value and commercial value.

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CLC: > Industrial Technology > Electrotechnical > Independent power supply technology (direct power) > Battery
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