Inertial Response Support in LFC by Linearized Delta Torque Model Based DFIG

Abstract

There has been a paradigm shift in incorporation of wind energy into the conventional grid. The power electronic interface decoupling the inertial response in the event of contingency is a challenging issue. In this paper a control loop based upon linearized delta torque model DFIG system is incorporated in a pragmatic two area power system including steam reheat constraints and governor dead band nonlinearity. From the exhaustive simulation studies carried out in Matlab Simulink Environment it is found that there is 93% reduction in peak frequency deviation and 75% decrease in tie power deviation, thus improving the reliability of power system considerably