Electricity in the air

Adam, Nathan; Barnett, Brady

doi:10.1016/b978-0-240-52023-0.50009-1

Cited by 2 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to respond to the growing needs of energy distribution on board and, at the same time, safeguard the ambitious objectives proposed in the aeronautical sector in terms of cost reduction and reliability of future aircrafts [1], new electric power systems have been proposed. In More Electric Aircraft (MEA) and All Electric Aircraft (AEA) pneumatic, hydraulic or mechanical systems are replaced by electrical systems [2][3][4][5]. As an example, electric generation in Boeing 787 is more than 1 MW, which is a significant increase compared to Boeing 737 (100 kW of electrical power) [6].…”

Section: Introductionmentioning

confidence: 99%

“…In particular, one of the preferred proposed solutions consists on replacing the current electric power system, based on a three-phase 115 VAC or 230 VAC at 400 Hz (or variable frequency on more modern aircrafts such as the Boeing 787 or Airbus 380), for a high-voltage DC distribution system (HVDC). Proposed HVDC nominal voltages are 270 VDC or 540 VDC, ie ± 270 VDC [3,8]. The development of a new electric power system based on HVDC creates the need to design a new generation of power converters to supply electrical power to the avionic loads of the aircraft, which typically require a low voltage 28 VDC bus.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Survey on Bidirectional DC/DC Power Converter Topologies for the Future Hybrid and All Electric Aircrafts

et al. 2020

View full text Add to dashboard Cite

DC-DC isolated converters allowing a bidirectional flow of energy between High-Voltage DC and Low-Voltage DC networks have been proposed to be integrated in future on board power distribution systems. These converters must meet the specially stringent efficiency and power density requirements that are typical of the aeronautic industry. This makes it specially challenging to determine which converter topology is best suited for each particular application. This work presents a thorough review of several topologies of bidirectional DC-DC power converters that are considered good candidates to meet certain important aeronautic requirements, as those related with high efficiency and high power density. We perform simulations on virtual prototypes, constructed by using detailed component models, and optimized following design criteria that are in accordance with those typically imposed by aeronautic requirements. This comparative analysis is aimed to clearly identify the advantages and drawbacks of each topology, and to relate them with the required voltage and power levels. As an outcome, we point out the topologies that, for the required power level at the chosen switching frequencies, yield higher efficiency in the whole range of required operation points and that are expected to allow more important weight reductions.

show abstract