| Summary: | 碩士 === 國立臺北科技大學 === 電機工程系所 === 94 === The objective of this thesis is to design and implement a high efficiency bidirectional DC/DC converter for fuel cell systems, which converts the energy from battery (or load) to fuel cell and visa versa. When the converter operates in buck mode, the power is provided by battery with constant voltage. In contrast, when the converter operates in boost mode, the battery is charged by fuel cells or regenerative energy of load with constant current. The details of the specification include:
Power rating = 1.5 kW
Voltage rating =24V/45V
First, the operation principle of bidirectional DC/DC converter is described. Then, the designed bidirectional DC/DC converter is verified by SIMULINK and the converter is realized. Moreover, the implemented bidirectional DC/DC converter controlled by dSPACE is verified by experimental results. Experimental results confirm that the energy can be converted in two directions by the implemented bidirectional DC/DC converter and the efficiency is over than 90%.
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