Eleventh International Conference on Road Transport Information and Control, 2002. (Conf. Publ. No. 486)
0537-9989
Cơ quản chủ quản: N/A
Các bài báo tiêu biểu
Forecasting real-time ratings for electricity distribution networks using weather forecast data
- Trang 1-4
Currently the operators of electrical distribution networks face a number of challenges, such as load growth, the proliferation of distributed generation and ageing infrastructure. This is drawing attention to techniques which will allow more efficient asset utilisation and facilitate network dynamic management. Power system component real-time ratings are a cost effective solution for increasing ......
Creating a successful payment architecture [mobile data services]
- Trang 376-381 - 2002
The introduction of GPRS and UMTS data services for mobile operators greatly increases the complexity of payment solutions since services can no longer be charged on simple duration basis but have to be tailored to the value of service being offered. At the same time, payment schemes need to be affordable and easy to understand for commercial success. The paper describes Nortel Networks' view of t......
Information architectures for next generation car park services
- Trang 74-77 - 2002
The car parking business must focus on customer service. This will progressively be about providing better information about spaces available and services to find the car park; for example, signs that light up to indicate the number of spaces available in a car park some way away. The common database architecture supports developing customer service and more cost effective monitoring for multivend......
The power quality challenge for a utility
- Trang 106-111 - 2002
Having more than 2 million customers, CLP Power Hong Kong Limited is the largest power utility in Hong Kong and has been providing reliable electricity supply to the customers for over a hundred years. Power quality (PQ) is not a new topic of concern as it is as old as the power system itself. However, power quality issues have become a controversial topic since modern electronic equipment and com......
Network monitoring, modelling and management to aid mitigate the impact of 'event' traffic
- Trang 78-82 - 2002
The UTMC philosophy is seeking to end the unsatisfactory position of incompatible systems and manufacturers' proprietary solutions by defining generic specifications and operational procedures for applications implemented throughout the UK. This study aimed to examine methods of integrating network monitoring, modelling and management. The research presented includes laboratory simulation and stre......
Enabling network redundancy in the radio access network
- Trang 27-31 - 2002
In the current UTRAN (UMTS terrestrial radio access network) architecture, redundancy is one of the major issues, usually provided by means of robust network elements with high reliability and protection switching in the transport network. When the radio access network evolves to a more distributed architecture, the functions of the RNC (radio network controller) are split according to control and......
FEM analysis and optimisation design of an IPM synchronous motor
- Trang 49-54 - 2002
In this paper, a parameter analysis of an interior permanent magnet (IPM) synchronous motor is presented. After some preliminary design considerations, based on an analytical model, the study is devoted to the evaluation of machine performance as main torque and torque ripple through finite element analysis. A validation of the calculation procedure is performed through experimental results on a p......
Dual gate lateral inversion layer emitter transistor
- Trang 37-40
This paper describes the concept, fabrication and characterisation of a dual gate lateral inversion layer emitter transistor (DGLILET). Although the use of an inversion layer as an emitter was proposed by Udrea and Amaratunga (Proc. ISPSD'97, p. 305-308, 1997), this is the first report of a DGLILET using a p-type inversion layer. Compared with other work previously published on vertical (Huang, So......
#Inversion layers #Power integrated circuits #Power MOSFETs #Current density #Charge carrier processes #Power semiconductor switches
The potential application of GPS for distance controlled car following
- Trang 25-29 - 2002
Global Positioning Systems (GPS) can measure locations and changes in locations of objects on the earth's surface with increasing accuracy. Researchers in Southampton University and Tsinghua University (China), have been jointly investigating the potential applications of GPS for traffic management and control with support from the Royal Society and the Natural Science Foundation Committee (NSFC),......
A soft-switched bi-directional isolated AC/DC converter for AC-fed railway propulsion applications
- Trang 433-438 - 2002
A novel isolated AC/DC converter topology incorporates a voltage source converter (VSC) with capacitive snubbers and a cycloconverter, connected by a medium frequency transformer. The concept offers the possibility of bilateral power flow as well as three-level pulse width modulation on the ac side. It is shown that by alternately commutating the VSC and the cycloconverter it is possible to achiev......