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Performance Investigations and Systems Architectures for the More Electric Aircraft

Performance Investigations and Systems Architectures for the More Electric Aircraft
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 2004
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Implementation of all or more electric technologies has the potential of improving the performance of a given aircraft. Savings can manifest through improved engine performance, reduced equipment weight and improved secondary power and systems utilization. Despite the potential benefits and the amount of research invested the concept has not been implemented yet and its impact on the overall performance of the aircraft remains unclear. Adoption of a single form of secondary power and implementation of more or all electric technologies is claimed to offer a number of distinct advantages over the conventional secondary power systems. These claims include the following: 1. Improved engine performance through the optimization of off-takes and elimination of bleed air. These issues is said to become critical as the bypass ratio of the engine increases and the size of the core reduces. However, despite concerns over the capability of high bypass ratio to provide secondary power requirements of future aircraft the claims remain unproven and it is generally believed that off-take penalties are not dependent on the configuration of the engine and can be kept to a minimum if the engine is designed to provide them. 2. Improved system utilization and implementation of more efficient power units. Conventional secondary power systems developed during the years that fuel was relatively fuel was relatively inexpensive and have not been optimized for maximum efficiency. Bleeding air from the engine is largely inefficient and a large amount of power is wasted for no useful purpose. In addition, hydraulics are often sized for loads that are small in duration thus increasing the mass and power requirements of the system. Elimination of conventional hydraulic and bleed air systems could lead to a significant mass reduction. However, the mass and size of the electrical equipment would also increase and these changes must be accounted for. 4. Additional benefits include reduced single typ.

Aircraft Electrical and Electronic Systems

Aircraft Electrical and Electronic Systems
A Book

by David Wyatt,Mike Tooley

  • Publisher : Routledge
  • Release : 2018
  • Pages : 420
  • ISBN : 9780415827768
  • Language : En, Es, Fr & De
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Electrical fundamentals -- Electronic fundamentals -- Digital fundamentals -- Generators and motors -- Batteries -- Power supplies -- Wiring and circuit protection -- Distribution of power supplies -- Controls and transducers -- Engine systems -- Fuel management -- Lights -- Cabin systems -- Airframe control and indicating systems -- Warning and protection systems -- Fire and overheat protection -- Terrain awareness warning systems (TAWS) -- Flight data and cockpit voice recorders -- Electrical and magnetic fields -- Continuing airworthiness

Electric Airplanes and Drones

Electric Airplanes and Drones
A History

by Kevin Desmond

  • Publisher : McFarland
  • Release : 2018-09-14
  • Pages : 314
  • ISBN : 147663341X
  • Language : En, Es, Fr & De
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 Attempts at electric powered flight date to well before the 19th century. Battery weight and low energy output made it impractical until the 1990s, when the advent of lightweight materials, more efficient solar power, improved engines and the Li-Po (lithium polymer) battery opened the skies to a wide variety of electric aircraft. The author describes the diverse designs of modern electric flying machines—from tiny insect-styled drones to stratospheric airships—and explores developing trends, including flying cars and passenger airliners.

Electro-Mechanical Actuators for the More Electric Aircraft

Electro-Mechanical Actuators for the More Electric Aircraft
A Book

by Mirko Mazzoleni

  • Publisher : Springer Nature
  • Release : 2021
  • Pages : 329
  • ISBN : 3030617998
  • Language : En, Es, Fr & De
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Detailed Design of a 30kW Switched Reluctance Starter Generator System Used in More All Electric Aircraft

Detailed Design of a 30kW Switched Reluctance Starter Generator System Used in More All Electric Aircraft
A Book

by Shoujun Song

  • Publisher : Unknown Publisher
  • Release : 2009
  • Pages : 107
  • ISBN : 9783832285289
  • Language : En, Es, Fr & De
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Electrical Machines and Systems for the More Electric Aircraft

Electrical Machines and Systems for the More Electric Aircraft
A Book

by IEE. Power Division. Professional Group P1 (Electrical machines and drives),Great Britain. Engineering Industries Directorate

  • Publisher : Unknown Publisher
  • Release : 1999
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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12-Pulse Active Rectifier for More Electric Aircraft Applications

12-Pulse Active Rectifier for More Electric Aircraft Applications
A Book

by Mohamad Taha

  • Publisher : Unknown Publisher
  • Release : 2018
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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The Aircraft industry is moving very quickly towards what it known as More Electric Aircraft (MEA). In a modern aircraft power technology system instead of using a fixed 400 Hz supply, a variable frequency supply (360 to 800 Hz) is used, which is dependent on the aircraft speed. In MEA electrical energy feeds the aircraft subsystems such as the flight control actuation, environmental control system, and utility function instead of mechanical, hydraulic and pneumatic energy. Although the new technology of MEA goes towards variable frequency supply, one of the essential parts of the power distribution systems require DC power sources to feed different DC loads, and a portion of load may require a fixed 400 Hz supply. This chapter simulation model of 12-pulse active rectifier for More Electric Aircraft applications.

Technical and Environmental Assessment of All-electric 180-passenger Commercial Aircraft

Technical and Environmental Assessment of All-electric 180-passenger Commercial Aircraft
A Book

by Albert Reuben Gnadt

  • Publisher : Unknown Publisher
  • Release : 2018
  • Pages : 99
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Aviation emissions contribute to climate change, and all-electric aircraft offer an opportunity for zero in-flight emissions. Over the past decade, more than 50 all-electric conceptual, experimental, and commercial aircraft have been researched, with a particular focus on light aircraft. These designs are reviewed, along with progress in battery technology. An all-electric aircraft design and optimization program, TASOPTe, has been developed from an existing version for conventionally-powered aircraft, TASOPT. Both programs are largely based on first-principles, enabling the design of aircraft with unusually short design ranges. A series of optimized 180-passenger aircraft based on the Airbus A320neo configuration are designed and evaluated at 200-1600 nmi design ranges with 2-10 propulsors and 400-2000 Wh/kg batteries. The performance of these all-electric aircraft is compared to advanced conventionally-powered aircraft optimized for the same design ranges. Optimized all-electric aircraft are found to use two or four propulsors, depending on the design range and specific energy assumed. The design range limits for each specific energy are determined, which are restricted by aircraft weight and performance penalties. A factor of four increase in battery pack specific energy from current values of 200 Wh/kg to 800 Wh/kg enables 500 nmi flights. However, a lower design range of 300 nmi provides improved energy and environmental performance. The required grid power generation circumstances for commercial all-electric aircraft to become net environmentally beneficial is determined for each specific energy assumption. The entire energy conversion chain, including charging, transport, and discharging of electrical energy, is considered. Despite the higher total energy use, narrow-body all-electric aircraft have the potential for lower equivalent CO2 emissions if the electrical grid transitions toward renewable energy. This is largely enabled by the complete elimination of all high-altitude emissions, which would remove associated non-CO2 warming.

Electric Drive Systems for the More Electric Aircraft

Electric Drive Systems for the More Electric Aircraft
A Book

by Magnetics Society

  • Publisher : Unknown Publisher
  • Release : 2003
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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More-electric Aircraft

More-electric Aircraft
A Book

by Royal Aeronautical Society (Great Britain)

  • Publisher : Unknown Publisher
  • Release : 2004
  • Pages : 329
  • ISBN : 9781857681536
  • Language : En, Es, Fr & De
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Analysis of Aircraft Power Systems, Including System Modeling and Energy Optimization, with Predictions of Future Aircraft Development

Analysis of Aircraft Power Systems, Including System Modeling and Energy Optimization, with Predictions of Future Aircraft Development
A Book

by Richard Alexander

  • Publisher : Unknown Publisher
  • Release : 2018
  • Pages : 64
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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The aviation industry has been one of the biggest beneficiaries of the major rise in electric power system technology for the past several decades. With more electric aircraft (MEA) now defining the new industry standard, the new future vision is toward all-electric aircraft, wherein conventional power systems and propulsion sources are electrified. Achieving all-electric aircraft will require optimization of energy source usage onboard existing MEA. By first considering the problem under a simplified environment, such as a hybrid unmanned aerial vehicle (UAV) power system, energy optimization techniques can be explored before being considered for larger applications. This work first presents a method for system modeling and optimizing the usage of energy sources for a hybrid UAV system. The energy optimization is presented through a dynamic programming algorithm, which considers the system under only the fundamental constraints. The system modeling aspect is presented as a virtual UAV model, which considers all of the nonlinear constraints present upon the system. The virtual UAV model validates the results from the algorithm to ensure the anticipated operation is feasible under realistic system constraints. This work then uses the results from the hybrid UAV study, and extends it to a study of larger commercial aircraft with the focus being on the transition to all-electric aircraft. Power system architectures, voltage levels, power requirements, and load characteristics are examined on existing electric vehicle applications, and predictions are made of what the future all-electric aircraft will look like. Additionally, the primary challenges of accomplishing “all-electric” status are discussed, including existing propulsion methods and battery chemistry. Finally, the paper discusses some recent advances toward all-electric aircraft, which further shows the bright future for the all-electric aircraft.

Electrical Discharge in the More Electric Aircraft Power System

Electrical Discharge in the More Electric Aircraft Power System
A Book

by Andrew Nelms,University of Manchester. School of electrical and electronic engineering

  • Publisher : Unknown Publisher
  • Release : 2007
  • Pages : 199
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Maximum Torque Control of a High Speed Switched Reluctance Starter/generator Used in More/all Electric Aircraft

Maximum Torque Control of a High Speed Switched Reluctance Starter/generator Used in More/all Electric Aircraft
A Book

by Minh Dinh Bui

  • Publisher : Unknown Publisher
  • Release : 2014
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Fundamentals of Electric Aircraft

Fundamentals of Electric Aircraft
A Book

by Pascal Thalin

  • Publisher : Unknown Publisher
  • Release : 2018-12-18
  • Pages : 260
  • ISBN : 9780768093223
  • Language : En, Es, Fr & De
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Fundamentals of Electric Aircraft was developed to explain what the electric aircraft stands for by offering an objective view of what can be expected from the giant strides in innovative architectures and technologies enabling aircraft electrification. Through tangible case studies, a deep insight is provided into this paradigm shift cutting across various aircraft segments - from General Aviation to Large Aircraft. Addressing design constraints and timelines foreseen to reach acceptable performance and maturity levels, Fundamentals of Electric Aircraft puts forward a general view of the progress made to date and what to expect in the years to come. Drawing from the expertise of four industry veterans, Pascal Thalin (editor), Ravi Rajamani, Jean-Charles Mare and Sven Taubert (contributors), it addresses futuristic approaches but does not depart too far from the operational down-to-earth realities of everyday business. Fundamentals of Electric Aircraft also offers analyses on how performance enhancements and fuel burn savings may bring more value for money as long as new electric technologies deliver on their promises.

Electrical Generation for More Electric Aircraft Using Solid Oxide Fuel Cells

Electrical Generation for More Electric Aircraft Using Solid Oxide Fuel Cells
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 2012
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Recent Advances in Aircraft Technology

Recent Advances in Aircraft Technology
A Book

by Ramesh K. Agarwal

  • Publisher : IntechOpen
  • Release : 2012-02-24
  • Pages : 558
  • ISBN : 9789535101505
  • Language : En, Es, Fr & De
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The book describes the state of the art and latest advancements in technologies for various areas of aircraft systems. In particular it covers wide variety of topics in aircraft structures and advanced materials, control systems, electrical systems, inspection and maintenance, avionics and radar and some miscellaneous topics such as green aviation. The authors are leading experts in their fields. Both the researchers and the students should find the material useful in their work.

The More Electric Aircraft and Beyond

The More Electric Aircraft and Beyond
A Book

by M. J. Provost,Rolls-Royce plc

  • Publisher : Unknown Publisher
  • Release : 2000
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Analysis and Design of Power Converter Topologies for Application in Future More Electric Aircraft

Analysis and Design of Power Converter Topologies for Application in Future More Electric Aircraft
A Book

by Amit Kumar Singh

  • Publisher : Springer
  • Release : 2018-04-20
  • Pages : 188
  • ISBN : 9811082138
  • Language : En, Es, Fr & De
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This thesis proposes new power converter topologies suitable for aircraft systems. It also proposes both AC-DC and DC-DC types of converters for different electrical loads to improve the performance these systems. To increase fuel efficiency and reduce environmental impacts, less efficient non-electrical aircraft systems are being replaced by electrical systems. However, more electrical systems requires more electrical power to be generated in the aircraft. The increased consumption of electrical power in both civil and military aircrafts has necessitated the use of more efficient electrical power conversion technologies. This book presents acomprehensive mathematical analysis and the design and digital simulation of the power converters. Subsequently it discusses the construction of the hardware prototypes of each converter and the experimental tests carried out to verify the benefits of the proposed solutions in comparison to the existing solutions.

Three-phase AC-DC Converters for More-electric Aircraft

Three-phase AC-DC Converters for More-electric Aircraft
A Book

by Zhonghui Bing

  • Publisher : Unknown Publisher
  • Release : 2010
  • Pages : 386
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Electro-Mechanical Actuators for the More Electric Aircraft

Electro-Mechanical Actuators for the More Electric Aircraft
A Book

by Mirko Mazzoleni,Gianpietro Di Rito,Fabio Previdi

  • Publisher : Springer
  • Release : 2021-02-08
  • Pages : 239
  • ISBN : 9783030617981
  • Language : En, Es, Fr & De
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This book presents recent results on fault diagnosis and condition monitoring of airborne electromechanical actuators, illustrating both algorithmic and hardware design solutions to enhance the reliability of onboard more electric aircraft. The book begins with an introduction to the current trends in the development of electrically powered actuation systems for aerospace applications. Practical examples are proposed to help present approaches to reliability, availability, maintainability and safety analysis of airborne equipment. The terminology and main strategies for fault diagnosis and condition monitoring are then reviewed. The core of the book focuses on the presentation of relevant case studies of fault diagnosis and monitoring design for airborne electromechanical actuators, using different techniques. The last part of the book is devoted to a summary of lessons learned and practical suggestions for the design of fault diagnosis solutions of complex airborne systems. The book is written with the idea of providing practical guidelines on the development of fault diagnosis and monitoring algorithms for airborne electromechanical actuators. It will be of interest to practitioners in aerospace, mechanical, electronic, reliability and systems engineering, as well as researchers and postgraduates interested in dynamical systems, automatic control and safety-critical systems. Advances in Industrial Control reports and encourages the transfer of technology in control engineering. The rapid development of control technology has an impact on all areas of the control discipline. The series offers an opportunity for researchers to present an extended exposition of new work in all aspects of industrial control.