Dynamic´s problems of frequency and active power control in electric power system

One of the main problems in the area of frequency control is providing proper dynamics of frequency and active power deviation. The paper deals with analysis of the frequency and active power deviation dynamics during turbine governor action. For providing effective frequency control dynamic characteristics of governors should be very similar. The authors suggest a new method for control of the output power of generators using a necessary dynamic law. It allows ensuring frequency and active power control in a mode, adaptive to the operational conditions. Developed dynamic model was used for analysis of frequency and active power behavior during disturbances in the power system. Results of mathematical modeling were compared with the field tests carried out at the hydro power plant. Field tests proved effectiveness of suggested new control method.