A METHOD IN AN ELECTRIC POWER SYSTEM CONTROLLER COMPUTER PROGRAMS COMPUTER PROGRAM PRODUCTS AND ELECTRIC POWER SYSTEM

摘要

The invention relates to a method (20) in an electric power system (1) comprising one or more power generation source (s) (3 4 5) and a dynamic power compensator (6) having a battery energy storage (10). The method (20) comprises the steps of: detecting (21) a frequency disturbance within the electricity power system (1) requiring an additional power generation source (3 4 5) to be connected to the electricity power system (1) in order to meet a power demand; and controlling (22) the power output from the battery energy storage (10) of the dynamic power compensator (6) during start up of the additional power generation source (3 4 5) thereby limiting the frequency disturbance within the electric power system (1). The invention also relates to a controller computer program computer program products and electric power system.