The necessity of Distributed Generation (DG) in the modern power system has increased greatly. Optimal placement and sizing DGs have a significant impact on objectives voltage stability enhancement, real reactive loss minimization security reliability. Different types such as Type I, II, III IVare placed. optimal these is found using Voltage Stability Index (VSI). done Differential Evolution (D...

A power system is a nonlinear one. When turbulence occurs in the power system, the stability of the system depends on the initial operating conditions and the nature of the turbulence. Nowadays renewable energy sources including photovoltaic have a key role to meet high demand of modern societies and to maintain voltage of the buses, while they also provide clean electrical energy. However, inc...

Electricity demand exceeds the supply leading to regional blackout. The power generated is transmitted through a large network and significant power losses in transmission and distribution feeders. Loss reduction through various methods has the potential to yield huge savings in economic growth and environmental impact. One such effective loss minimization method is to inject reactive power by ...

Loss minimization in power system is an important research issue. Transmission line losses in a power system can be minimized by means of reactive power compensation. The continuous demand in electric power system network has caused it to be heavily loaded leading to voltage instability. This phenomenon has also led to voltage profile depreciation below the acceptable secure limit. The signific...

Power system blackouts have become a serious problem for electric utilities especially in recent years. Different forms of system instability have emerged in recent blackouts, such as voltage instability and frequency instability. To counteract each form of system instability, special algorithms have been designed in the protection system, e.g. Under Frequency Load Shedding (UFLS) and Under Vol...

This paper presents a new framework for the day-ahead reactive power market based on the uniform auction price. Voltage stability and security have been considered in the proposed framework. Total Payment Function (TPF) is suggested as the objective function of the Optimal Power Flow (OPF) used to clear the reactive power market. Overload, voltage drop and voltage stability margin (VSM) are inc...

Power systems are operating under stressed condition due to continuous increase in demand of load. This can lead to voltage instability problem when face additional load increase or contingency. In order to avoid voltage instability suitable size of reactive power compensation at optimal location in the system is required which improves the load margin. This work aims at obtaining optimal size ...

1Lecturer, Department of Electrical Engineering, Assam Engineering Institute, Assam, India 2Associate Professor, Department of Electrical Engineering, Assam Engineering College, Assam, India ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract This paper presents the application of MultiObjective Tea...