انجام پروژه متلب | متلبی

کد مقاله g97
عنوان مقاله:

A MATLAB-Simulink-Based PV Module Model and Its Application Under Conditions of Nonuniform Irradiance

سال ارائه:  2012       نوع مقاله: IEEE                                     گزارش فارسی: دارد

کلید واژه:MATLAB-Simulink, model, nonuniform irradiance, photovoltaic (PV) array, پروژه متلب , شبیه سازی با متلب , 

Abstract—The performance of a photovoltaic (PV) module is
mostly affected by array configuration, irradiance, and module
temperature. It is important to understand the relationship be
tween these effects and the output power of the PV array. This pa
per presents a MATLAB-Simulink-based PV module model which
includes a controlled current source and an S-Function builder.
The modeling scheme in S-Function builder is deduced by some
predigested functions. Under the conditions of nonuniform irra
diance, the model is practically validated by using different array
configurations in testing platform. The comparison experiments in
dicate thatI–VandP–Vcharacteristic curves of simulation match
the measurements from outdoor experiment well. Under the con
ditions of nonuniform irradiance, both simulation and experiment
show that the output power of a PV array gets more complicated
due to multiple peaks. Moreover, the proposed model can also simu
late electric circuit and its maximum power point tracking (MPPT)
in the environment of MATLAB-Simulink. The experiments show
that the proposed model has good predictability in the general be
haviors of MPPT under the conditions of both nonuniform and
uniform irradiance.
Index Terms—MATLAB-Simulink, model, nonuniform irradi
ance, photovoltaic (PV) array.

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کد مقاله g120

عنوان اصلی مقاله :

Implementation of Simulink in Protection of Transmission Lines

اجرای سیمولینک در حفاظت از خطوط انتقال

سال ارائه:  2012       نوع مقاله:ژورنال        گزارش فارسی: دارد 

کلید واژه:, پروژه متلب , شبیه سازی با متلب ,

ANN (Artificial neural network), Simulink, High voltage transmission lines, Fault

Affiliated to M.D.U., Rohtak, Haryana
Abstract: High voltage transmission lines are used to transmit electrical energy from source to substations. If
any fault and disturbance are generated in the transmission lines and not detected, located and eliminated
quickly, it may cause instability in the system. Tofind the exact location of fault occurring in transmission
lines may be calculated by some conventional methods. This paper presents the implementation of
Simulink/MATLAB for finding the exact location of fault in power system.From the help of Simulink circuit
diagram we will calculate the changes of voltage, current and power when the fault is occurs in phase A,
phase B and phase C either with respect to ground or with respect to any two phases. Simulink resultswill
shown in this paper.
Keywords- ANN (Artificial neural network), Simulink, High voltage transmission lines, Fault.

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کد مقاله g135
عنوان مقاله:

A Single-Input Single-Output Approach by using Minor-Loop Voltage Feedback Compensation with Modified SPWM Technique for Three-Phase AC–DC Buck Converter

سال ارائه:  2013       نوع مقاله: ژورنال                            گزارش فارسی: دارد
کلید واژه :MATLAB-Simulink, Minor-loop feedback compensator, Modified SPWM, Three-phase AC–DC buck converter, پروژه متلب , شبیه سازی با متلب ,

Abstract
The modified sinusoidal pulse-width modulation (SPWM) is one of the PWM techniques used in three-phase AC–DC buck
converters. The modified SPWM works without the current sensor (the converter is current sensorless), improves production of
sinusoidal AC current, enables obtainment of near-unity power factor, and controls output voltage through modulation gain
(ranging from 0 to 1). The main problem of the modified SPWM is the huge starting current and voltage (during transient) that
results from a large step change from the reference voltage. When the load changes, the output voltage significantly drops
(through switching losses and non-ideal converter elements). The single-input single-output (SISO) approach with minor-loop
voltage feedback controller presented here overcomes this problem. This approach is created on a theoretical linear model and
verified by discrete-model simulation on MATLAB/Simulink. The capability and effectiveness of the SISO approach in
compensating start-up current/voltage and in achieving zero steady-state error were tested for transient cases with step-changed
load and step-changed reference voltage for linear and non-linear loads. Tests were done to analyze the transient performance
against various controller gains. An experiment prototype was also developed for verification.
Key words: MATLAB-Simulink, Minor-loop feedback compensator, Modified SPWM, Three-phase AC–DC buck converter

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