부산대학교 도서관

Global warming might be one of the driving forces to develop electrical drive trains due to the ability of being powered 100% renewable. However, cost reasons are still a driving issue. Referring to electrical based powertrains, they rely on two separate power nets. Here electrical power must be transferred from the electrical drive train net to the standard net. This typically is realized employing a dc/dc-converter with wide input and output voltage range. In this paper a new topology employing standard components like the drive train inverter for propulsion is taken. For the first time a direct energy conversion scheme is proposed, reducing the contributing components to the standard power train setup while increasing efficiency due to direct energy conversion. Using this power train configuration, a standard inverter is used in parallel for energy conversion in terms of propulsion demands and power support of the standard net. For the first time power arising from a drive train accumulator is galvanic isolated converted at the same time with one standard power train inverter offering high efficiency and increased reliability.