Optimized cabin power supply with a &amp;#x002B;/&amp;#x2212; 270 V DC grid on a modern aircraft

Brombach, J.; Schröter, Tamara; Lucken, A.; Schulz, Detlef

doi:10.1109/cpe.2011.5942274

Cited by 28 publications

(22 citation statements)

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“…Aside from incrementing the generation capability, future aircraft concepts aim to improve the overall electrical power system and its architecture. In next generation aircraft, a significant weight saving could be achieved by increasing the distribution voltage [33,101]. As previously mentioned, considering the same transmitted power, a higher voltage (for the distribution system) will result in smaller cable crosssection area.…”

Section: A Multi-spool Generation and Hvdc Systemsmentioning

confidence: 99%

“…As previously mentioned, considering the same transmitted power, a higher voltage (for the distribution system) will result in smaller cable crosssection area. Furthermore, raising the voltage will allow greater line voltage drop [101]. In fact, the minimum allowed voltage is 108Vac, for distribution system at 115Vac, instead 250Vdc are accepted on 270Vdc systems (as per MIL-STD-704F) [100].…”

Section: A Multi-spool Generation and Hvdc Systemsmentioning

confidence: 99%

“…In fact, the minimum allowed voltage is 108Vac, for distribution system at 115Vac, instead 250Vdc are accepted on 270Vdc systems (as per MIL-STD-704F) [100]. For these reasons, high voltage DC (HVDC) distribution systems at 270Vdc and 540Vdc are under investigation [101,104]. Regarding the HVDC systems, the most obvious concerns are safety and the increased risk of electrical system failures, caused by the low pressure phenomenon, such as corona effects and insulation breakdown.…”

Section: A Multi-spool Generation and Hvdc Systemsmentioning

confidence: 99%

See 2 more Smart Citations

Electrical Power Generation in Aircraft: Review, Challenges, and Opportunities

Madonna

Giangrande

Galea

2018

IEEE Trans. Transp. Electrific.

450

194

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Abstract-The constant growth of air traffic, the demand for performance optimization and the need for decreasing both operating and maintenance costs have encouraged the aircraft industry to move towards more electric solutions. As a result of this trend, electric power required on board of aircraft has significantly increased through the years, causing major changes in electric power system architectures. Considering this scenario, the paper gives a review about the evolution of electric power generation systems in aircraft. The major achievements are highlighted and the rationale behind some significant developments discussed. After a brief historical overview of the early DC generators (both wind-and engine-driven), the reasons which brought the definitive passage to the AC generation, for larger aircraft, are presented and explained. Several AC generation systems are investigated with particular attention being focused on the voltage levels and the generator technology. Further, examples of commercial aircraft implementing AC generation systems are provided. Finally, the trends towards modern generation systems are also considered giving prominence to their challenges and feasibility.

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Section: A Multi-spool Generation and Hvdc Systemsmentioning

confidence: 99%

Section: A Multi-spool Generation and Hvdc Systemsmentioning

confidence: 99%

Section: A Multi-spool Generation and Hvdc Systemsmentioning

confidence: 99%

See 1 more Smart Citation

Electrical Power Generation in Aircraft: Review, Challenges, and Opportunities

Madonna

Giangrande

Galea

2018

IEEE Trans. Transp. Electrific.

450

194

View full text Add to dashboard Cite

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“…produce 1 MW of electrical power [1] [2]. Most of the electrical consumers in an aircraft grid are loads with internal or external converters [3]. The InFlight-Entertainment (IFE) system e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, electrical power is often converted to different voltage levels several times in modern aircraft [3] [4]. For example a generator voltage of 230 V AC is transformed to 115 V AC for the supply of cabin loads and converted to 28 V DC for the avionic system.…”

Section: Introductionmentioning

confidence: 99%

Influence of small Constant-Power-Loads on the power supply system of an aircraft

Brombach

Jordan

Grumm

et al. 2013

2013 International Conference-Workshop Compatibility and Power Electronics

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Today most electrical consumers in an aircraft grid are electronic loads. Compared to resistive or motoric loads these loads have constant power consumption, which is independent of the supply voltage. This characteristic may have a negative effect on the stability of a power supply system. In addition real Constant-Power-Loads can have some other peculiarities. Depending of the topology or the supplied voltage type (AC or DC) the dynamic characteristic differs. This paper deals with a characterization of 4 types of Constant-Power-Loads in an actual and future aircraft grid. The investigations are focused to the dynamic characterization of different loads. Theoretical investigations are combined with measurements in an artificial aircraft grid with realistic supply voltage variations.

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Weight saving in the electrical distribution systems of aircraft using innovative concepts

Terorde

Lucken

Schulz

2013

Int. J. Energy Res.

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SUMMARYThere is a growing need for an electrical generation and distribution system for modern commercial aircraft. In the field of aviation, there is a trend towards ‘more electric aircraft’, which implies the substitution of the hydraulic and pneumatic systems by electrical ones. This trend, in effect, results in an increasing demand for energy. In aircraft construction, there is a state‐of‐the‐art inflexible point‐to‐point supply of loads based on a complex and expensive electric load analysis. Connecting the load to different feeders during flights is not possible because of rigid wiring.The article introduces modern concepts for improving the electrical distribution system—namely feeder balancing and phase balancing. These methods involve utilizing intelligent switching nodes based on power semiconductor devices. The concepts allow for a reallocation of electrical loads on different power feeders. The article will also present an analysis of the integration of a multifunctional fuel cell system with a focus on the necessary changes in the electrical network of an aircraft. In less than a decade's time, commercial aircraft could use low‐temperature fuel cells to substitute the auxiliary power unit and the ram air turbine, which is used in ground phases and in cases of turbine failure. Using fuel, cells could aid in constructing a completely different layout of the electrical network implementing a ±270 V DC voltage level. The increasing electrical demand of aircraft requires an energy‐efficient power supply network. Copyright © 2013 John Wiley & Sons, Ltd.

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Optimized cabin power supply with a +/− 270 V DC grid on a modern aircraft

Cited by 28 publications

References 1 publication

Electrical Power Generation in Aircraft: Review, Challenges, and Opportunities

Electrical Power Generation in Aircraft: Review, Challenges, and Opportunities

Influence of small Constant-Power-Loads on the power supply system of an aircraft

Weight saving in the electrical distribution systems of aircraft using innovative concepts

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