The autonomous power system control on the basis of the wide area measurement system data

摘要

The integration of additional excitation and load-frequency control on the basis of wide area measurement system data is investigated in simple equivalent model of oil-field autonomous power system with dominant motor load to improve small signal and transient stability. It is shown that small signal stability level can be substantially increased by applying angle feedback in power system stabilizer of synchronous generators and motors as well as gas turbine frequency control. Parameter optimization is primarily based on eigenvalue calculations and damping curve analysis. The principles of combined gas turbine and variable frequency drive control are developed to improve autonomous power system transient stability, the level of which is deadly small in oil- and gas-production enterprises.