Some Trends in the Development of Aircraft Electrical and Starting Systems

1955 ◽  
Vol 59 (537) ◽  
pp. 587-603
Author(s):  
R. H. Woodall
Keyword(s):  
Power System ◽  
Complete System ◽  
Main Task ◽  
Aircraft Industry ◽  
Electrical System ◽  
Set Up

The main task of the aircraft accessory designer is to provide fully developed and type-tested equipment to meet the needs of the Aircraft Industry at the time when a new aircraft is at a stage in construction where accessories are to be fitted.But he must do more than this, particularly with equipment for multi-engined aircraft. He must endeavour to set up and test a complete aircraft ancillary power system. This is particularly important for the electrical system, where two or more generators have to operate in parallel, successfully sharing the load on the system and providing over-voltage and other protection in such a manner that failure of the complete system does not result from failure of one engine, generator or its attendant equipment.

Design of Monitoring the PV-Wind Power System Based on King View

2012 ◽  
Vol 468-471 ◽  
pp. 811-815
Author(s):  
Hai Feng Zhou ◽  
Kai Li ◽  
Jing De Dong ◽  
Yuan Qing Huang
Keyword(s):  
Power System ◽  
Wind Power ◽  
Automatic Data ◽  
Power System Monitoring ◽  
Interface Control ◽  
Automatic Data Collection ◽  
Wind Power System ◽  
Analysis System ◽  
Set Up ◽  
System Variables

This paper set up high-quality and highly efficient automatic data collection and analysis system by King View configuration in order to improve the reliability and stability of PV-Wind power system monitoring and decrease the workload, the design of its functions, structure, interface, control strategy and system variables, protection, and so on are detailed. It uses configuration software based on PC to exploit the operation interface in host computer, and adopt Wide-Plus Intelligent Instrument as the lower computer to data-acquisition. It monitors and controls PV-Wind power System, acquires field data, deals with device faults in real-time

The Court

2018 ◽  
Author(s):  
Tilmann Büttner
Keyword(s):  
Civil Service ◽  
Complete System ◽  
European Court Of Justice ◽  
Legal Entity ◽  
Court Of Justice ◽  
European Court ◽  
Set Up ◽  
Civil Service Tribunal ◽  
Court Of First Instance ◽  
Court Of Appeal

The UPC, universally referred to as ‘the Court’ throughout the text of the Agreement pursuant to Art 2(a) UPCA, is to be regarded legally as a legal entity sui generis (Art 4(1) UPCA) and structurally as a uniform entity. The Court entity as a whole comprises both the judiciary structures, which are the Court of First Instance and the Court of Appeal, and the non-judiciary structures, which are the Registry with sub-registries set up at all divisions of the Court (Art 10(1) and (2) UPCA). The Court’s structure visibly follows that of the CJEU which, according to Art 19 TFEU, comprises as a unitary court the European Court of Justice, the General Court, and the Civil Service Tribunal, thus establishing a complete system of courts.

scholarly journals Integrated collaboration capabilities for competitive aircraft design

2018 ◽  
Vol 233 ◽  
pp. 00015 ◽  
Author(s):  
Erik Baalbergen ◽  
Wim Lammen ◽  
Nikita Noskov ◽  
Pier-Davide Ciampa ◽  
Erwin Moerland
Keyword(s):  
Supply Chain ◽  
New Technologies ◽  
Aircraft Design ◽  
Aircraft Industry ◽  
Efficient Manner ◽  
Time To Market ◽  
Cost Efficient ◽  
Set Up ◽  
Short Time ◽  
The Eu

Airlines need to continuously extend and modernise their fleets, to keep up with the challenges of air-travel growth, competition, green, safe and secure operations, and growing passenger demands. As a result, the aircraft industry and its supply chain have to manage the growing needs for cost-efficient and complex aircraft in increasingly shorter time. Meanwhile they face their own challenges, such as certification and global competition. Quick evaluation of promising new technologies and concepts facilitates a short time to market. However, the required innovations are costly and risky, and require involvement of many experts from different disciplines and partners. Increasing the level of collaboration within the aircraft industry and its supply chain will be an essential step forward to deal with the challenges. Developing modern aircraft in an increasingly cost and time efficient manner in a collaborative set-up however requires step changes. The EU-funded Horizon2020 project AGILE has developed methods and tools for efficient and cross-organisation collaborative aircraft design, facilitating the rapid evaluation of new technologies and concepts at the early stages of aircraft development. This paper describes the capabilities and illustrates the successful integrated application of the capabilities by means of a collaborative aircraft rudder design evaluation.

Study of Co-Simulation of Rehabilitation Robot for Upper Limb Based on Virtual Prototype

2013 ◽  
Vol 712-715 ◽  
pp. 2272-2276
Author(s):  
Zhi Lan ◽  
Zhen Yan ◽  
Jian Jun Xu
Keyword(s):  
Upper Limb ◽  
Virtual Prototype ◽  
Rehabilitation Robot ◽  
Electrical System ◽  
Kinematic Parameters ◽  
Rehabilitation Robots ◽  
Dynamics And Control ◽  
Intellectual Control ◽  
Set Up ◽  
And Control

A novel rehabilitation robot for upper limb, which can implement single joint and multi-joint complex motions and provide activities of daily living (ADL) training for hemiplegic patients, was presented. Based on the software ADAMS and the software MATLAB/Simulink, the virtual prototype and the platform of co-simulation of mechanical-electrical system were set up. On the platform of co-simulation, the rehabilitation robots kinematics, dynamics and control have been simulated, and each joints kinematic parameters, torque can be obtained, and parameters of controller can be also confirmed. It offered reliance for the actual intellectual control of the rehabilitation robot.

Object-Oriented Method of Constructing Electric Power System Domain Ontology Based on Protégé

2014 ◽  
Vol 997 ◽  
pp. 827-830
Author(s):  
Jian Xin Li ◽  
Gang Ke
Keyword(s):  
Power System ◽  
Semantic Annotation ◽  
Public Information ◽  
Object Oriented ◽  
Domain Ontology ◽  
Electric Power System ◽  
Main Task ◽  
Semantic Inference ◽  
Semantic Data ◽  
Ontology Tree

This paper presents a method for domain ontology of constructing power system based on Protégé . This paper describes how to package Interoperability Portlet into semantic Portlet, then create semantic data association between ontology-based semantic Portlet and using semantic inference rules to realize Portlet interoperability. The main task of this paper is to construct and deploy (service release) ontology, find out the concept of the power of public information model CIM about our project, create an XML format file with tools such as Protégé . This paper will elaborate on the use of object-oriented constructed method for constructing the ontology. The construction of the ontology tree provides the foundation of Web services’ semantic annotation.

The cost of undisturbed landscapes: on the valuation of wind turbines in Austria

2020 ◽  
Author(s):  
Sebastian Wehrle ◽  
Johannes Schmidt
Keyword(s):  
Power System ◽  
Wind Energy ◽  
Wind Turbines ◽  
Electricity Market ◽  
House Prices ◽  
Electricity Consumption ◽  
Negative Externalities ◽  
System Cost ◽  
Electricity System ◽  
Set Up

<p>In Europe, the system cost minimizing highly renewable power system set-up predominantly relies on wind energy, with minor shares of photovoltaics.</p><p>Yet, minimizing system cost neglects negative externalities of wind turbines, such as their impact on wildlife, noise emissions, landscape aesthetics, manifesting in local economic impacts such as a decline of house prices in the vicinity of wind turbines.</p><p>To better understand the trade-off between electricity system cost and the negative externalities from wind turbines, we quantify the increase in electricity system cost when the system cost minimizing deployment of wind turbines is reduced in the favor of photovoltaics.</p><p>Methodologically, we rely on the power system model medea, an open, techno-economic, numerical model of hourly dispatch and investment, set up to resemble the electricity market in Austria and its largest electricity trading partner Germany in 2030, when Austria aims to generate 90% of its electricity consumption from domestic renewable sources on annual balance.</p><p>Depending on the capital cost of renewable energy technologies, the marginal system cost from displaced wind turbines can reach up to 40.000 EUR per MW and year or approximately 20 EUR per MWh. Moreover, CO2 emissions can increase by up to 1.2 million tons per year when wind energy is fully displaced. Producer surplus could increase by up to 220 million EUR per annum at intermediate wind energy displacement but falls back towards initial levels when wind energy is fully displaced.</p><p>These numbers compare to estimates of property price declines between 2% and 16% caused by wind turbines, depending on the proximity to, and the visibility of the turbine. For illustration, adding a 3.5 MW wind turbine to a total installed wind power capacity of 12.6 GW in Austria over its lifetime (assuming a 3% discount rate) would generate sufficient social value to compensate affected property worth between 0.8 and 6.7 million EUR.</p>

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