| Title |
Stochastic Estimation of Voltage Sags Based on Voltage Monitoring |
| Authors |
손정대(Jeongdae Son) ; 박창현(Chang-Hyun Park) |
| DOI |
http://doi.org/10.5370/KIEE.2018.67.10.1271 |
| Keywords |
Area of vulnerability ; Poisson distribution ; Power quality ; Voltage monitoring ; Voltage sag assessment |
| Abstract |
This paper deals with a voltage sag assessment based on a voltage monitoring program. The voltage sag performance at a specific site can be evaluated by analyzing voltage monitoring data recorded for a long time period. Although an assessment based on voltage monitoring is an effective way to understand voltage sag performance at a measurement site, the statistical confidence of voltage sag frequency estimation heavily depends on the length of monitoring period and the number of recorded events. Short monitoring period and insufficient recorded data can not provide a reliable assessment result. This paper proposes a compensation assessment method by combining a computer simulation approach for in case that monitoring period and data are not enough for a valid assessment. |