Monitoring of generating units´ contribution to Frequency and Voltage Control

Ancillary Services (Frequency and Voltage Control) are very important for the electric system operation reliability. RTE (Reseau de Transport d´Electricite) has developed a monitoring tool aiming at analyzing measurements (active and reactive power, voltage) at the delivery point of the units. This tool computes indicators and supplies diagnosis information on conformity of the participation of units to frequency and voltage control. After about five years, the results are positive and RTE has gained detailed and precise information about the individual behavior of each generation unit.