04918753.zip - This paper presents the modeling and simulation of a
high-speed single-shift micro turbine generation system. This
unit has four parts: a compressor-turbine, a permanent magnet
generator, a three phases bridge rectifier and inverter. The
model is built from the dynamics of each part with their
interconnections, and two different control strategies suitable
respectively for isolated and grid-connected operation were
developed. Finally, simulation studies have been carried out
under a stepped load. The model is developed in the
MATLAB/Simulink (Matlab 2007a) and implemented in Power
system Toolboxes. This model is a useful tool for studying the
various operational aspects of micro turbines,2014-06-23 11:54:00,下载10次
04505287.zip - An increasing number of distributed generation units (DG
units) are connected to the distribution network. These
generators affect the operation and coordination of the
distribution network protection. The influence from DG units
that are coupled to the network with a power electronic
converter (PEC) is different from that of conventional DG
units with an electrical machine directly coupled to the
network. This contribution shows that PEC-based DG units
can be controlled in such a way that the negative influence on
the distribution network protection is limited. A decision tree
and a flow-chart are presented that show how a PEC-based
DG should respond to network faults. The flow-chart can be
used in real time to bring the proper control algorithm in
operation during a fault,2014-06-23 11:49:04,下载3次
04358742.zip - In this paper, a novel approach for the design of power
converter for a microturbine is proposed. In the method, a unified
control scheme as well as a novel modular arrangement has been
developed such that the inverter circuit is capable of parallel operation
of different modules in anticipation of reaching high-capacity
requirements. To validate the effectiveness of this proposed approach,
scenarios including the loss of grid and grid-connected
operation were both tested through the software simulation and
experimental validation. From the test results, they have consolidated
the feasibility and practicability of the approach for the
applications considered,2014-06-23 11:46:01,下载3次
Bayesian-Inference-Based-Recdation-(1)-(1).zip - In this paper, we propose a Bayesian inference-based recommendation system for online social networks. In our system,users share their content ratings with friends. The rating similarity between a pair of friends is measured by a set of conditional probabilities derived from their mutual rating history. A user propagates a content rating query along the social network to his direct and indirect friends. Based on the query responses, a Bayesian network is constructed to infer the rating of the querying user. We develop
distributed protocols that can be easily implemented in online social networks.,2014-05-11 13:22:42,下载4次
10.1016-j.eswa.2012.12.093(1).zip - System reliability analysis and optimization are important to efficiently utilize available resources and to develop an optimal system design architecture. System reliability optimization has been solved by using optimization techniques including meta-heuristics. Meanwhile, the development of meta-heuristics has been an active research field of the reliability optimization wherein the redundancy, the component reliability,
or both are to be determined. In recent years, a broad class of stochastic meta-heuristics, such as simulated annealing, genetic algorithm, tabu search, ant colony, and particle swarm optimization paradigms,has been developed for reliability-redundancy optimization of systems.,2014-05-11 12:56:11,下载4次
2.zip - Reliable control and optimal operation of the doubly fed induction generator (DFIG) is necessary to ensure high efficiency and high load-following capability in modern wind power plants. This is often difficult to achieve using conventional linear controllers, as wind power plants are nonlinear and contain many uncertainties,2014-02-25 15:22:43,下载3次
5.zip - The doubly fed induction generator (DFIG) is widely
used in wind energy. This paper proposes a model-based predictive
controller for a power control of DFIG. The control law is derived
by optimization of an objective function that considers the control
effort and the difference between the predicted outputs (active and
reactive power) and the references. The prediction was calculated
using a linearized state-space model of DFIG. As the generator
leakage inductance and resistance information were required for this control method, the influence of the estimation errors for these
parameters was also investigated. Simulation results are presented to validate the proposed controller,2014-02-25 15:18:00,下载9次
7.zip - During the past decade, Wind energy have attracted interest as a result of the increasing concern about CO2 emissions. The doubly fed induction generators (DFIGs)have been widely used in modern wind energy systems, due
to the advantages of variable speed operation and four quadrant active and reactive power capabilities. In DFIG,the stator is directly connected to the grid and the rotor is connected to the grid by a bidirectional converter. The
converter connected to the rotor controls active and the reactive power between the stator of the DFIG and ac supply or a standalone grid.,2014-02-25 15:13:53,下载2次
cpilosa_energy.zip - Gasoline prices averaged $3.767 a gallon in the Los Angeles-Riverside-Orange County area in October 2013, the U.S. Bureau of Labor Statistics reported today. Regional Commissioner Richard J. Holden noted that area gasoline prices were down 73.2 cents compared to last October when they averaged $4.499 per gallon. Los Angeles area households paid an average of 21.5 cents per kilowatt hour (kWh) of electricity in October 2013, similar to 21.1 cents per kWh in October 2012. The average cost of utility (piped) gas at $1.175 per therm in October was more than the $1.052 per therm spent last year. (Data in this release are not seasonally adjusted accordingly, over-the-year-analysis is used throughout.),2014-01-28 15:33:34,下载1次
IPST01Paper119.zip - Power quality monitoring has advanced
to an important tool for system evaluation
and solving power-related problems. As a
consequence the increased amount of recorded
data requires more sophisticated analysis methods.
The paper proposes a system for automated
recording and classification of power
quality disturbances. The system features statistical
classification techniques applied to a
frame-based event model. Results and experiences
made by a test in a low-voltage power
system are presented.,2014-01-28 15:32:16,下载1次
s16p06.zip - power quality monitoring has advanced to an important tool for system evaluation.the increased amount of recorded data requires more sophisticated analysis methods. the paper describes the development and operation of a system for automated classification of power quality events.different to existing approaches the proposed system introduces a new frame based event model similar to speech models of speech recognition systems.,2014-01-28 15:29:29,下载1次
E07-CPR-10-03_E-UPriceReg_0.rar - Building competitive electricity and gas markets is in the interest of customers. Since 1 July
2007, electricity and gas markets in Member States in Europe are fully opened for all
customers, including households. Even after the 1st July deadline, some Member States seek
to regulate end-user energy prices (so called “regulated tariffs”), arguing that it is a tool to
protect vulnerable customers. However, protecting “vulnerable customers” should not
be confused with regulated tariffs for all (or certain categories) of customers. It is
ERGEG’s view that fully open markets with well functioning competition cannot in the
long term coexist with regulated end-user energy prices.,2013-12-07 16:04:42,下载2次
PL4.ALMEIDA.rar - In this paper, the main Power Quality (PQ)
problems are presented with their associated causes and
consequences. The economic impacts associated with PQ are
characterized. Finally, some solutions to mitigate the PQ
problems are presented.,2013-12-07 16:01:23,下载1次
128.rar - In this paper, the control of Hopf bifurcation in an Internet congestion model with a single link accessed
by a single source is presented. By choosing the gain parameter as a bifurcation parameter, it is found that
the system without control cannot guarantee a stationary sending rate. Furthermore, Hopf bifurcation occurs
when the positive gain parameter of the system exceeds a critical value. For Internet congestion model,
a control model based on delayed feedback is proposed and analyzed for delaying the onset of undesirable
Hopf bifurcation. Numerical simulations are given to justify the validity of delayed feedback controller in
bifurcation control.,2013-10-07 22:09:24,下载7次
feeder.zip - simulink nod feeder in matlab,2012-11-05 23:12:48,下载23次
dstatcom.mdl.rar - this simulation is dsatatcom with matlab,2012-09-10 17:28:49,下载18次
Cascade_Multilevel_inverter_model.rar - this simulation is cascade with matlab,2012-09-10 17:27:34,下载7次
statcom6.rar - this simulation of statcom with matlab,2012-09-10 17:25:52,下载87次
power_HEV_powertrain.zip - this file is simulation of reactive power control,2012-09-10 17:23:12,下载23次
400v.zip - this file is simulation of induction motor in matlab,2012-09-10 17:20:32,下载5次