A Novel Method for Assessment of Voltage Stability Improvement of Radial Distribution System Using SVC at Optimal Location

Electrical power demand is increasing day-to-day due to which the stress on distribution systems is growing rapidly. To cater the increasing load demand the distribution systems are forced to operate nearer to their voltage stability limits because lower voltage stability will restrict the power tha...

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Bibliographic Details
Published in2018 International Conference on Electrical, Electronics, Communication, Computer, and Optimization Techniques (ICEECCOT) pp. 602 - 606
Main Authors P, Manjunatha Babu, Lakshmikantha, B R, Sundar, K Shanmukha
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2018
Subjects
FACTS (Flexible AC Transmission System)
Indexes
Power system stability
Radial distribution system
Radial Stability Index (RSI)
Radial System Sensitivity Index (RSSI)
Reactive power
Stability criteria
Static VAR Compensator (SVC)
Static VAr compensators
Thermal stability
Voltage Stability Improvement
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Summary:Electrical power demand is increasing day-to-day due to which the stress on distribution systems is growing rapidly. To cater the increasing load demand the distribution systems are forced to operate nearer to their voltage stability limits because lower voltage stability will restrict the power that can be supplied to the distribution systems. In this paper a simple and efficient method is proposed to identify the buses which are prone to voltage instability based on reactive power sensitivity analysis. An algorithm is developed for optimal location of SVC to improve the voltage profile of the system. The proposed method embedded with SVC is tested on 15 bus and 28 bus radial rural electrification networks. Results obtained from the proposed technique are compared with existing voltage stability index and found to be better.
DOI:10.1109/ICEECCOT43722.2018.9001380