انجام پروژه متلب | متلبی

کد مقاله g60 

عنوان مقاله: 

A simplified nonlinear controller for transient stability enhancement of multimachine power systems using SSSC device 
کنترلر غیر خطی ساده برای افزایش پایداری گذرا سیستم های چند ماشینه قدرت  با استفاده از دستگاه SSSC 
سال ارائه:  2013       نوع مقاله:elsevier   گزارش فارسی: دارد 
کلید واژه : 
Power system,Transient stability,FACTS,Static synchronous series compensator (SSSC), پروژه متلب , شبیه سازی با متلب ,,DFIG,Lyapunov theory 

abstract
In this paper, a simplified nonlinear method is proposed to enhance the transient stability of multima
chine power system by using a Static Synchronous Series Compensator (SSSC). The rate of dissipation
of transient energy is used to determine the additional damping provided by a SSSC. The proposed algo
rithm is based on the direct Lyapunov method. The simplicity of the proposed scheme and its robustness
with respect to large disturbances constitute the main positive features. Simulation results in the case
of 3-machines power system show the effectiveness of the proposed method under large disturbances
(3-phase and single phase short-circuits).

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کد مقاله g109
عنوان مقاله:

Power System Stability Improvement of Long Transmission Line System by Using Static Var Compensator (SVC

بهبود پایداری سیستم قدرت در سیستم خط انتقال بلند با استفاده از  جبران کننده استاتیکی وار (SVC)

سال ارائه:  2013       نوع مقاله: Journal                                       گزارش فارسی: دارد

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

FACTS, long transmission line, MATLAB, SVC, power system stability, three phase fault.

ABSTRACT
Power system stability is defined as the ability of power system to preserve it’s steady stability or recover the
initial steady state after any deviation of the system’s operation. This paper will discuss how SVC has
successfully been applied to control dynamic performance of transmission system and regulate the system
voltage effectively. Present time power systems are being operated nearer to their stability limits due to
economic and environmental reasons. Maintaining a stable and secure operation of a powersystem is therefore a
very important and challenging issue. Shunt FACTS devices play an important role in improving the transient
stability, increasing transmission capacity and damping low frequency oscillations. In this paper shunt FACTS
device-SVC is used in a two area power system for improving the power system stability. MATLAB software
has been used in this study.
Keywords - FACTS, long transmission line, MATLAB, SVC, power system stability, three phase fault.

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کد مقاله g138

عنوان مقاله:

Multiobjective Optimal Location of FACTS Shunt-Series Controllers for Power System Operation Planning

در این پروژه سعی شده تا یک شبکه 14 شینه IEEE با افزودن تعداد سه عدد از ادوات FACTs به سیستم در حالت ماندگار شبیه سازی شود. ادوات به کار رفته عبارتند از HFC بین شین 2 و 4، PST بین شین 2 و 5 و UPFC بین شین 6 و 13.

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

کلید واژه : Flexible ac transmission systems (FACTS), hybridflow controller (HFC), multiobjective, optimal location, optimal power flow (OPF), phase-shifting transformer (PST), unified power-flow controller (UPFC)., پروژه متلب , شبیه سازی با متلب ,

Abstract—This paper develops appropriate modelsofflexible
ac transmission systems (FACTS) shunt-series controllers for
multiobjective optimization and also presents a multiobjective
optimization methodology tofind the optimal location of FACTS
shunt-series controllers. The objective functions are the total
fuel cost, power losses, and system loadability with and without
minimum cost of FACTS installation. The -constraint approach
is implemented for the multiobjective mathematical program
ming (MMP) formulation, including the FACTS shunt-series
controllers (i.e., phase-shifting transformer (PST), hybrid flow
controller (HFC), and unified power-flow controller (UPFC)).
Simulation results are presented for the IEEE 14-bus system. The
optimization method is numerically solved using Matlab and gen
eral algebraic modeling system (GAMS) software environments.
The solution procedure uses nonlinear programming (NLP) and
mixed-integer nonlinear programming (MINLP) to solve the op
timal location and setting of FACTS incorporated in the optimal
power-flow problem considering these objective functions and
improving the power system operation. Furthermore, the results
demonstrate that the HFC is outperformed by PST and UPFC
from the analytical and technical point of views.
Index Terms—Flexible ac transmission systems (FACTS),
hybridflow controller (HFC), multiobjective, optimal location,
optimal power flow (OPF), phase-shifting transformer (PST),
unified power-flow controller (UPFC).

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