Eleventh International Conference on Road Transport Information and Control, 2002. (Conf. Publ. No. 486)
SCOPUS (1923,1970-1971,1973-2002,2004-2005)
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...
A parallel OPF approach for large-scale power systems
- Trang 161-166 - 2002
In this paper, the Newton-Krylov algorithm of power flow calculation is
reviewed. A rectangular coordinate voltage formulation of nonlinear optimal
power flow (OPF) is introduced and adopted into the unlimited point algorithm,
and a Newton-Krylov algorithm similar to that of power flow calculation is
proposed to solve the unlimited point transformed optimality conditions for the
original OPF probl...
Extended vector control of doubly fed machine under unbalanced power network conditions
- Trang 329-334 - 2002
The present paper analyses operation of a power unit with a doubly fed machine
under the condition of unbalanced voltage supply applied to the stator. An
extended vector control method is proposed to increase the immunity to a
negative-sequence voltage component and to improve the controllability of such a
power unit.
Implementation of online air-gap torque monitor for detection of squirrel cage rotor faults using TMS320C31
- Trang 128-132 - 2002
This paper proposes a digital signal processor (DSP) based implementation of
online air-gap torque estimator for detection of squirrel cage rotor faults. Two
noninvasive, computationally efficient methods for online air-gap torque
monitoring are discussed. In both the methods, the air-gap torque is computed
from two stator voltages and currents and is cost effective when compared with
the use of a...
Precise UE positioning in UMTS using cumulative virtual blanking
- Trang 355-359 - 2002
The current observed time difference of arrival technique for finding the
position of a mobile in a UMTS network suffers from a severe near-far problem
when the UE is close to a node B. We describe a new technique, called cumulative
virtual blanking, for overcoming this problem efficiently, without disrupting
the normal operation of the network. Early results from a network-based trial
indicate po...
On the implementation and optimisation of LDPC codes on a reconfigurable hardware for future communications systems
- Trang 196-200 - 2002
With the advent of new services and capabilities for next generation mobile
communication systems, new powerful error-correcting schemes have emerged to
increase cellular capacity and achieve higher transmission data rates
effectively. A new set of error-correcting codes (ECCs), called low-density
parity check codes (LDPCs), significantly reduce error-rates compared to
conventional ECCs. This codi...
A low speed reciprocating permanent magnet generator for direct drive wave energy converters
- Trang 468-473 - 2002
The design of a prototype linear variable reluctance permanent magnet machine is
outlined in this paper. It has been built to investigate operation at speeds of
0.5 m/s, which is typical of a wave energy converter. Results are presented to
verify the design, and to investigate the performance of the machine. In order
to optimise power conversion, methods of compensating for the effects of the
high...
Optimised torque control of marine transverse-flux propulsion machines
- Trang 1-6 - 2002
This paper focuses on describing a generalised approach to torque control that
utilises the motor's magnetic flux characteristic that ensures that maximum
torque is produced for minimal input power. The method is generalised for any
separately excited synchronous, permanent magnet or reluctance machine,
including axial flux machine (AFM) and transverse flux machine (TFM). A TFM
motor is used to il...