| Summary: | 碩士 === 國立雲林科技大學 === 電機工程技術研究所 === 88 === The object of this thesis is to investigate the circuit topologies and control techniques for fast charging of battery for the Electric Vehicle (EV). Analysis and comparison of fast charging characteristics for different charging controls are presented. A charging and discharging monitoring system was implemented based on a DSP. To improve the utilization of EV, it is necessary to design a charger with the function of fast charging and the capability of charging control, thus to longer the battery life.
The charging characteristics (charging time, charging current, temperature, switching frequency, and pulse period) of different charging methods (two-step, pulse, and ReflexTM) are analyzed and presented. Experiments were carried out based on the battery set of four 26AH lead-acid batteries in series. A LabVIEW-based monitoring system was constructed to record the voltage, current and temperature for the batteries. The DSP-based charging control combining with the monitor system features fast charging, digital control and flexibility.
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