Relay Coordination of Highly Meshed Distribution Grids in the Presence of Volatile Infeed and Power Flow Control
This paper states characteristic phenomena of meshing, volatile infeed and power flow control in distribution grids.Need-based modification of grid topology like closed-ring operation and interconnection of distribution grids at medium voltage level, varying short-circuit contribution of distributed generation and active power flow controllers affect the protection system.This causes difficulties protection engineers need to be aware of.A schematic grid model facilitates the investigation of those non-traditional challenges for distribution system protection.Firstly, the characteristic effects are separately exposed, described and confirmed.Secondly, the paper pictures the influence on relay settings and relay coordination in general.Eventually, suggestions to overcome protection system problems are proposed.
Closed-ring distribution grid Distributed power generation Power flow controller Power system protection
M.Biller J.Jaeger
FAU University of Erlangen-Nurernberg,91058 Erlangen Germany
国际会议
南京
英文
650-655
2015-09-21（万方平台首次上网日期，不代表论文的发表时间）