Title :
Reasearh on the microgrid protection relay
Author :
Zhaoyun Zhang ; Wei Cheng ; Yanxin Li
Abstract :
Generation and associated loads were viewed as a subsystem or a "micro-grid", micro-grid can improve the utilization of renewable energy and important load supply reliability. Currently the protection relay of LV system mainly is over-current protection, but simply over-current protection can no meet the requirements of micro-grid. In this paper, the electrical characteristics and fault characteristics of renewable energy and micro-grid system have been summarized, the new relay principle and configuration program have been proposed.The model of the micro-grid power system is simulated in PSCAD.
Keywords :
distributed power generation; load (electric); overcurrent protection; power generation faults; power generation reliability; relay protection; LV system; PSCAD; electrical characteristics; fault characteristics; load supply reliability; microgrid protection relay; over-current protection; renewable energy; Microgrid; PSCAD; protection relay;
Conference_Titel :
Integration of Renewables into the Distribution Grid, CIRED 2012 Workshop
Conference_Location :
Lisbon
Electronic_ISBN :
978-1--84919-628-4
DOI :
10.1049/cp.2012.0725
