Impact on Long Duration of Overvoltage Due to Back-Feed Restoration of Distribution Network

• Published in: Journal of Advanced Research in Applied Sciences and Engineering Technology
• Main Author: Omar S.; Samat A.A.A.; Zaini N.H.; Abdullah S.; Daud K.; Aripriharta
• Format: Article
• Language: English
• Published: Semarak Ilmu Publishing 2024
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85185528302&doi=10.37934%2faraset.39.2.132140&partnerID=40&md5=c85bc38618be7a3356563cee7f3b6941

In power system, power outages can be critical; if the environment and public safety within risk situation. Therefore, restoration power is needed to respond on system distribution to reduce the power restoration time and making the system reliable and efficient. Backfeeding using a nearby feeder in a power system is proposed in this research. When a power outage occurred, the faulted area is isolated from the system and searching available nearby feeders that can restore the outage area without any violation. However, analysing the effects of using a nearby feeder for back feeding is needed to avoid voltage violations. This paper analyses the voltage during the healthy and faulted condition, the impact of using a nearby feeder for backfeeding for a full load, half load and during no-load conditions are examine and also determine the maximum increment limitation of a load during back-feed if a qualified feeder is selected. Newton Raphson method is applied to calculate the power flow in the system and observe the stability of backfeed configuration. The results show the highest voltage supply occur during no load followed by half load and lastly during full load. The maximum voltage increment of load on backfeed is determined to be 0.95pu as an ideal voltage value. © 2024, Semarak Ilmu Publishing. All rights reserved.