Limiting Distributed Generator Capacity Due to the Voltage Stability Phenomena

2006 ◽  
Author(s):  
R. B. Prada ◽  
L. F. Ferreira ◽  
L. C. A. Ferreira
Keyword(s):  
Voltage Stability ◽  
Distributed Generator

A Multi-Objective Framework to Improve Voltage Stability in A Distribution Network

2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Arputha Aravinth ◽  
Vikas Anand Vatul ◽  
K Narayanan ◽  
K Muthukumar ◽  
Tomonobu Senjyu
Keyword(s):  
Power Loss ◽  
Voltage Stability ◽  
Distribution Network ◽  
Reducing Power ◽  
Stability Index ◽  
Radial System ◽  
Distributed Generator ◽  
Multi Objective ◽  
Different Types ◽  
Bus Voltage

Abstract This paper investigates the performance of a radial system while installing a Distributed Generator (DG) in existing Distribution Network (DN). The investigation has been performed with various types of DG units for different topologies of the DN. The present work uses a Voltage Stability Index (VSI) for identifying the location for installing a DG in the DN. A multi-objective framework is proposed to evaluate the size of the DG to be installed by reducing power loss and deviation in bus voltage. Genetic Algorithm (GA) is used to optimize the size of DG. The proposed method has been tested with different types of DG units on standard systems (IEEE-33 bus and IEEE-69) with different radial topologies of DN.

Voltage Stability Index of Radial Distribution Networks by Considering Distributed Generator for Different Types of Loads

2016 ◽  
Vol 5 (1) ◽  
pp. 1-22 ◽  
Author(s):  
Tapan Kumar Chattopadhyay ◽  
Sumit Banerjee ◽  
Chandan Kumar Chanda
Keyword(s):  
Stability Analysis ◽  
Radial Distribution ◽  
Distribution Systems ◽  
Voltage Stability ◽  
Stability Index ◽  
Distribution Networks ◽  
Voltage Collapse ◽  
Distributed Generator ◽  
Voltage Stability Index ◽  
Different Types

The paper presents an approach on voltage stability analysis of distribution networks for loads of different types. A voltage stability index is proposed for identifying the node, which is most sensitive to voltage collapse. It is shown that the node, at which the value of voltage stability index is maximum, is more sensitive to voltage collapse. For the purpose of voltage stability analysis, constant power, constant current, constant impedance and composite load modeling are considered. Distributed generation can be integrated into distribution systems to meet the increasing load demand. It is seen that with the insertion of distributed generator (DG), load capability limit of the feeder has increased for all types of loads. By using this voltage stability index, one can measure the level of voltage stability of radial distribution systems and thereby appropriate action may be taken if the index indicates a poor level of stability. The effectiveness of the proposed method is demonstrated through two examples.

Voltage Stability Preventive Control Using VMPI Sensitivities

2008 ◽  
Vol 128 (11) ◽  
pp. 1320-1328 ◽  
Author(s):  
Yoshifumi Kataoka ◽  
Masato Watanabe ◽  
Shingo Sakaeda ◽  
Shinichi Iwamoto
Keyword(s):  
Voltage Stability ◽  
Preventive Control
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