Using Phasor Measurement Unit in Control Room for Monitoring Frequency Primary Regulation of Generator Unit

Croatian TSO has finalized a Proof of Concept (PoC) for monitoring generators with purpose of primary frequency regulation mode within Wide Area Monitoring System (WAMS) using synchrophasors in control room. The main goal of PoC was testing well proven synchrophasor technology for purposes of advanced monitoring of generator units connected to transmission network. This technology was tested on six generators connected to 220 kV and 110 kV transmission network in five power plants. For this project three different ways of acquiring synchrophasor data for analyses were used. Data were collected with phasor measurement units (PMU) and from archives. Some PMUs were already installed on high voltage side of step up transformer earlier for other purposes, rest of measurement campaign was done using portable PMUs in two power plants. Results show full potential of using this data for monitoring generator for primary regulation. Output from project gives Croatian Transmission system operator (TSO) possible technical solution which can be implemented in control room.