Evaluation Of Feeders Reliability By Using Events Recordand Power Performance Indexes
Journal Title: International Journal of Engineering and Science Invention - Year 2018, Vol 7, Issue 11
Abstract
There is a positive relationship between the change of voltage parameters, power interruption and power supply reliability. It is an innovative thinking to judge the reliability of power supply by the number and duration of voltage events. Based on the basis of parameter measurement and statistics of power quality that develops an innovation method of power performance duration index evaluate reliability of feeders. The reliability can be evaluated according to the magnitude of the index which in larger mean the greater occurred event rate and the less the reliability. On the contrary, index in smaller mean smaller the event rate and the better the reliability. The ideal power supply event rate is zero an on the relatively; the ideal power supply event duration index is also zero. Innovation defines the power performance indexes which cover the two indexes as the interruption performance index and the events performance index. (1) Uses the voltage interruption data to derive the average interruption duration index (AIDI). And (2) uses the voltage swell and voltage dip data to derive the average event duration index (AEDI). A new method was proposed to evaluate the reliability of the feeder by AIDI and AEDI. The derivation of AIDI and AEDI for two different types of feeders which including underground and overhead feeders possess the bad power quality that can be improved. However, form the view of measurement that the overhead feeder has better power quality and better reliability.
Authors and Affiliations
Yen-Ming Tseng, Hsi-Shan Huang, Chih-Pin Freg, Jsung-Ta Tsai
Keywords
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