نتایج جستجو برای: modified voltage stability index

تعداد نتایج: 1014957  

Journal: :IEEE Power Engineering Review 1982

2014
P. B. Chennaiah Dr. M. Padma Lalitha A. Ashok Reddy

Voltage Instability is one of the major phenomena which has resulted a major obstruct to power system network. Use FACTS controllers possible that voltage stability status in a stressed power system could be improved with effective reactive power compensation. This paper proposes at multi-objective optimization problem such as minimization of real power loss, L-index and load voltage deviation....

In this paper, a modified version of the lightning search algorithm is proposed in order to find the optimal reconfiguration of the switches and locate and determine the optimal capacity of distributed generation sources in the distribution feeder. The main optimization goals are to reduce ohmic losses and voltage deviations in the standard 33-bus and 94-node IEEE feeders. The simulation result...

Journal: :IJEOE 2016
Tapan Chattopadhyay Sumit Banerjee Chandan Kumar Chanda

1 Voltage Stability Index of Radial Distribution Networks by Considering Distributed Generator for Different Types of Loads Tapan Kumar Chattopadhyay, Electrical Engineering Department, Dr. BC Roy Engineering College, Durgapur, India Sumit Banerjee, Electrical Engineering Department, Dr. BC Roy Engineering College, Durgapur, India Chandan Kumar Chanda, Electrical Engineering Department, Indian ...

2000
Garng Huang Tong Zhu

TCSC has been proposed to enhance the voltage stability by changing the reactive power distribution in the power system. Authors have discussed the effect of TCSC on steady state voltage stability and small-signal voltage stability. This paper discusses the TCSC’s enhancement on transient voltage stability. A TCSC model that is suitable for transient voltage stability analysis is proposed. This...

2000
Mats Larsson

Traditionally the simulation of transient and voltage stability in power systems has been constrained to domain-specific tools such as Simpow, PSS/E, ETMSP and EuroStag. While being efficient and thereby able to simulate large systems, their component models are often encapsulated and difficult or impossible to examine and modify. Also, these simulators often require substantial training and ar...

2013
Mehdi Derafshian Maram Nima Amjady Abbas Rezaey

The requirement for minimized cost whilst preserving power system reliability necessitates the development of both efficient system security assessment approaches and appropriate emergency remedial actions. Load shedding is a type of corrective actions that is applied to save power system stability against severe disturbances. This paper proposes an optimal load shedding policy that takes into ...

2013
K. Lenin

: This paper presents an algorithm for solving the multi-objective reactive power dispatch problem in a power system. Modal analysis of the system is used for static voltage stability assessment. Loss minimization and maximization of voltage stability margin are taken as the objectives. Generator terminal voltages, reactive power generation of the capacitor banks and tap changing transformer se...

2017
Fengkai Hu Kai Sun Zhiwei Wang

This paper proposes an online measurement-based method for n-1 voltage stability assessment on a load area by means of an equivalent system of N+1 buses introduced by ref. [1] to represent N boundary buses of the load area and the external system. This method utilizes real-time synchro-phasor measurements on N boundary buses and online state estimation on the load area to analyze n-1 sensitivit...

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