Adaptive correction of current longitudinal differential protection of power equipment

Abstract

The report reflects the long-term solutions for the modernization of main means of emergency control and protection of integrated power systems in the implementation of adaptive control algorithms. The substantiation of new structures and algorithms for the formation of corrective signals using non-stationary filters of the displacement current of overhead power lines is performed. Calculated, using the bias currents of the phases are used for dynamic correction of the working and brake signals of the longitudinal differential protection. The basis of adaptive means of differential protection of power equipment of power systems is developed. They are based on the use of adaptive correction of operating and brake protection signals. A mathematical description of the optimization problem of determining the response parameters of sensitive longitudinal current differential protection with adaptive correction of operating and braking signals is performed.