Abstract
The boost insertion of DERs, large-scale PV, and wind energy are included in the power distribution grid network, while fixed series (FSC), static var (SVC compensation, shunt capacitors, and reactors in the transmission grid network stabilize the power system. The smooth-running system requires secured and reliable island operation to avoid blackouts and brownouts. The unpredictable grid abnormalities such as DC supply failure, BCU faulty, server redundancy failure, nal-operation of the line protection, CBF protection, BB protection operation, and tack of redundancy or mal-operated controller logics/hardwired contacts or causes of human errors in some cases could cause unintentional remote islanding. This paper proposes a new algorithm with the unique design of adoptive logic developed first time at station level IEC61850 grid controller in SBUS Server EcoSUI Engineering software to enhance the reliability and system redundancy which manipulates real-time grid variables instead of measuring only the PCC voltage, therefore there is no NDZ issue and power quality problem hence detects export power failure (demand) at the grid and intimate plant controllers remotely to desynchronize the generation (supply) for overall island operation, then proposed best-standardized communication interfacing topology between grid controller to plant controllers. (C) 2021 INT TRANS J ENG MANAG SCI TECH.