| Summary: | 碩士 === 國立高雄第一科技大學 === 電子與資訊工程研究所 === 99 === This thesis proposes a power management system for fuel cell electric vehicles (FCEV). The fuel cell electric vehicle consists of fuel cell modules, DC/DC step-up converter, LiFePO4 battery, inverter and solar cells. The fuel cell modules provides the main power of electric vehicle, enhance output voltage to 365V used of DC/DC step-up converter, and stabilize the output voltage, at the same time the lithium iron phosphate battery pack and provide energy to inverter. Solar cells as auxiliary power supplies, provides use of other parts of the FCEV. By a micro-controller monitors the fuel cell electric vehicles, and use the CAN Bus protocol to receive the fuel cell internal parameter values to UART protocol data transmission power values of the FCEV, in the QGVA 5.7-inch touch screen display real-time, so that drivers can immediately to control the operational status of the FCEV. The power management systems can be used in future electric vehicles, allowing users to clearly understand the value of the hydrogen pressure, the fuel cell voltage and current values and the operating temperature, DC/DC step-up converter voltage and current values, the solar cells maximum power, the inverter frequency and current, and LiFePO4 battery charge and discharge state. The commercialization of electric vehicles in the future, the integrity of the lowest cost and reliability can be provided by the power management system are verified.
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