2010 IEEE Vehicle Power and Propulsion Conference 2010
DOI: 10.1109/vppc.2010.5729003
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Advantages of a variable DC-link voltage by using a DC-DC converter in hybrid-electric vehicles

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Cited by 77 publications
(26 citation statements)
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“…This topology has been developed and successfully validated within a full electric vehicle in the publicly funded projects Europahybrid [11] and e performance [23]. The biggest advantage of this propulsion system architecture is its modularity.…”
Section: Next Generation Power Converter Architecturementioning
confidence: 99%
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“…This topology has been developed and successfully validated within a full electric vehicle in the publicly funded projects Europahybrid [11] and e performance [23]. The biggest advantage of this propulsion system architecture is its modularity.…”
Section: Next Generation Power Converter Architecturementioning
confidence: 99%
“…In contrast to the battery, the inverter and electric machine can be operated most efficiently at an adjustable dc-link voltage with the aid of dc-to-dc converters [5,] [11], [12]. This is because the switching losses of the inverter can be significantly reduced by dynamic adjustment of the dc-link voltage as function of speed of the machine, which enables lower PWM switching frequencies, lower noise and even transition into six-step operation [13].…”
Section: Introductionmentioning
confidence: 99%
“…By varying the DC-bus voltage, the overall system can obtain higher efficiency in certain regions of operation [15,16,17,18,19,20,22,23]. This topic is the main focus of this paper and will be further explored in the next section.…”
Section: Expanding the Torque Speed Envelopementioning
confidence: 99%
“…It can be seen that before the base speed the MI of S2 is maintained at a higher value compared to S1. Therefore it is expected that there will be improvements in terms of efficiency in the low RPM region [15,16,17,18,19,20].…”
Section: Increasing the System Efficiency Using A Dc-dc Convertermentioning
confidence: 99%
“…In charging mode the EMS controls the individual battery charging currents. A further task of the EMS is the adaption of the voltage-level of the HV-DC link to the speed dependent voltage requests of the inverters in order to minimize switching losses in the converters [7]. To prevent the drivetrain from overloading the batteries, the EMS also calculates a power limit which must not be exceeded while accelerating or braking.…”
Section: Description Of the Energy Management Systemmentioning
confidence: 99%