FEA Based Level 3 Assessment of Deformed Tanks with Fluid Induced Loads
PPT material.pptx
1. The main disadvantages of the passive methods are determined threshold value
and
related to their large non-detection zone. The emphasis of the proposed approach
is eliminating the
aforementioned drawbacks
The main concern of the passive schemes is related to their large Non Detection
Zone (NDZ), while the main problem of the active methods is related to their
negative impact on power quality
The islanding condition must be detected as quickly and accurately
as possible. Thus, intelligent methods are attractive for the researchers
for detecting and classifying the islanding condition.
for power island detection in grid connected distributed generation
The lives of maintenance personnel will be in danger since they might be
unaware that the line they are about to work on is being fed by the DG.
2. Islanding is one important concern for grid
connected distributed resources due to
personnel and equipment safety. Several
methods
based on passive and active detection scheme
have been proposed. While passive schemes
have a large
non-detection zone (NDZ), concern has been
raised on active method due to its degrading
power quality
effect
Artificial intelligence, including neural network,
fuzzy logic
inference, genetic algorithm and expert
systems, has been used
to solve many nonlinear classification
problems
3. The main
advantages of a fuzzy logic system (FLS) are the capability to express nonlinear input–
output relationships by a set of qualitative
if–then rules. The main advantage of an artificial neural network
(ANN), on the other hand, is the inherent learning capability, which
enables the networks to adaptively improve their performance.
The key properties of neuro-fuzzy network are the accurate learning and
adaptive capabilities of the neural networks, together with
the generalization and fast learning capabilities of fuzzy logic systems. A
neuro-fuzzy (ANFIS) system is a combination of neural network and fuzzy
systems in such a way that neural network is used
to determine the parameters of fuzzy system. A neural network is
used to automatically tune the system parameters.
4. Recently, the integration of DG with distribution system
increases due to the DG’s advantages. Some of the
advantages of DG are reduction in transmission and distribution
losses, no need of upgradation of transmission and distribution
capacity, use of renewable energy resources etc [1]
N recent years,the deployment of distributed generation (DG)
into electric power distribution system has been
increasedsignificantly due to numerous technical, economic and
environmental benefits. However, the increased installation of
DG into distribution system raises several protection issues. One
of the most important and challenging issue with DG is
islanding detection.
10. 10
DWPI 摘要
新颖性: The method involves operating the gas turbine
engine (10) during at least a take-off, climb, cruise phase
and an approach phase. The engine operates with a generally
constant propeller tip speed, during the cruise phase. The
tip speed of at least one of the propellers is operated,
during at least one of take-off, climb or approach at a
greater tip speed than cruise tip speed.
用途: Method for operating a contra-rotating propeller
engine (claimed).
优势: Enables the reduction of the noise generated by the
engine for a given power rating. Enables the reduction of the
weight of the engine without reducing the aerodynamic
performance requirements and reduction in the power of the
engine.
DWPI 标题
Method for operating contra-rotating propeller engine(对转
螺旋桨发动机) involves climbing or approaching at greater
tip speed than cruise tip speed, during take-off
风力发电领域的一篇美国专利
DWPI标题和摘要
原文标题只有一个单词
原文简短摘要
DWPI标题比原始文献提供更多的技术特征和关键
词，并尽量改写成通俗的语言，使检索更精准
DWPI摘要是基于专利全文的精炼，并段落化专利
的不同方面，极大提高了专利研读的效率
