Design of Distribution Network Intelligent Analysis System Based on Low-Voltage Release and Its Application

Author

Lei Rongli ; Ouyang Sen ; Shi Yili

Author_Institution

Sch. of Electr. Power, South China Univ. of Technol., Guangzhou, China

fYear

2012

fDate

7-9 Dec. 2012

Firstpage

508

Lastpage

511

Abstract

The paper presents an intelligent analysis system (IAS) to get an accurate analysis of reclosing. The function of IAS is to get the accurate judgment of whether low-voltage release (LVR) reclosed successfully. Firstly, current and voltage variation (CVV) of LVR is recorded by intelligent low-voltage release (ILVR). To make it convenient to measure CVV of LVR for analysis, ILVR measuring function is adopted. And the data is used to analyze operating characteristic (OC) of LVR after restoration in the supply side. Finally, IAS will achieve the judgment. IAS can help LVR users get rid of disadvantages caused by reclosing. With the exact reclosing result, power supply bureau (PSB) can provide accurate information about restoration in DN to customers. And operation personnel can provide manual reclosing according to analysis of IAS. Finally, the validity of IAS was verified by the applications.

Keywords

circuit breakers; power distribution protection; power engineering computing; power system measurement; power system restoration; current variation; distribution network intelligent analysis system; intelligent low-voltage release; power supply bureau; reclosing analysis; supply side restoration; voltage variation; Current measurement; Monitoring; Personnel; Power quality; Voltage fluctuations; Voltage measurement; distribution network; intelligent analysis; low-voltage release;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Engineering and Communication Technology (ICCECT), 2012 International Conference on

Conference_Location

Liaoning

Print_ISBN

978-1-4673-4499-9

Type

conf

DOI

10.1109/ICCECT.2012.143

Filename

6414054