scholarly journals Perspectives and Development of Electrical Systems in More Electric Aircraft

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Ahmet Yigit Arabul ◽  
Emre Kurt ◽  
Fatma Keskin Arabul ◽  
İbrahim Senol ◽  
Martin Schrötter ◽  
...  
Keyword(s):  
Power Systems ◽  
Electric Propulsion ◽  
State Of The Art ◽  
Aircraft Design ◽  
The State ◽  
Total Change ◽  
Profound Change ◽  
Electrical Systems ◽  
Electric Aircraft ◽  
More Electric Aircraft

On-board electrical systems are the key components of each modern aircraft. They enable its safer, more comfortable, and environmentally friendlier operation. The strict regulations to reduce pollution and noise are produced by aircraft eventuated in projects like Clean Sky or ICAO Global Coalition for Sustainable Aviation. One solution to environmentally friendlier operation is the full electric propulsion of the aircraft, which enables the reduction of both noise and pollution. Such a concept requires a total change of all on-board power systems and enables the profound change in aircraft design. This paper presents the evolution of aircraft power systems into the so-called more electric aircraft (MEA) and discusses the state-of-the-art electrical systems. Furthermore, the concept of all-electric aircraft (AEA) is presented here.

scholarly journals A Network Parameter Database False Data Injection Correction Physics-Based Model: A Machine Learning Synthetic Measurement-Based Approach

2021 ◽  
Vol 11 (17) ◽  
pp. 8074
Author(s):  
Tierui Zou ◽  
Nader Aljohani ◽  
Keerthiraj Nagaraj ◽  
Sheng Zou ◽  
Cody Ruben ◽  
...  
Keyword(s):  
Machine Learning ◽  
Power Systems ◽  
State Of The Art ◽  
Real Life ◽  
The State ◽  
Wide Area ◽  
Network Parameter ◽  
False Data Injection ◽  
Network Parameters ◽  
Injection Attacks

Concerning power systems, real-time monitoring of cyber–physical security, false data injection attacks on wide-area measurements are of major concern. However, the database of the network parameters is just as crucial to the state estimation process. Maintaining the accuracy of the system model is the other part of the equation, since almost all applications in power systems heavily depend on the state estimator outputs. While much effort has been given to measurements of false data injection attacks, seldom reported work is found on the broad theme of false data injection on the database of network parameters. State-of-the-art physics-based model solutions correct false data injection on network parameter database considering only available wide-area measurements. In addition, deterministic models are used for correction. In this paper, an overdetermined physics-based parameter false data injection correction model is presented. The overdetermined model uses a parameter database correction Jacobian matrix and a Taylor series expansion approximation. The method further applies the concept of synthetic measurements, which refers to measurements that do not exist in the real-life system. A machine learning linear regression-based model for measurement prediction is integrated in the framework through deriving weights for synthetic measurements creation. Validation of the presented model is performed on the IEEE 118-bus system. Numerical results show that the approximation error is lower than the state-of-the-art, while providing robustness to the correction process. Easy-to-implement model on the classical weighted-least-squares solution, highlights real-life implementation potential aspects.

IBM Power Systems platform: Advancements in the state of the art in IT availability

2008 ◽  
Vol 47 (4) ◽  
pp. 519-533 ◽  
Author(s):  
G. T. McLaughlin ◽  
L. Y. Liu ◽  
D. J. DeGroff ◽  
K. W. Fleck
Keyword(s):  
Power Systems ◽  
State Of The Art ◽  
The State

Current Status and Future Needs in Turbulence Modeling: An Aeronautical Perspective

2003 ◽  
Author(s):  
Dennis M. Bushnell ◽  
Siva Thangam
Keyword(s):  
Turbulence Modeling ◽  
State Of The Art ◽  
Aircraft Design ◽  
Air Transportation ◽  
The State ◽  
Current Status ◽  
Future Needs

An overview of current issues in turbulence modeling is presented along with a brief description of the current and future needs of NASA, especially from the point of advancing the state-of-the-art in aircraft design and air transportation.

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