TO THE QUESTION OF PROVIDING THE CORRECT WORK OF DEVICES OF AUTOMATIC FREQUENCY DISCHARGE IN THE KUZBAS ENERGY SYSTEM

Abstract

The article presents the statistics of false alarms of automatic frequency unloading devices for 2012-2016. An analysis of the types of automatic frequency unloading devices operated in the Kuzbass power system is also presented. As a result of the analysis it was established that the main reason for the false triggering of the automatic frequency unloading is the absence of a lock in the speed of the frequency reduction or its incorrect setting. To prevent false triggering of the automatic frequency unloading in the event of run-out of the motor load, organizational and technical measures are proposed. It is noted that the correct setting of the blocking for the rate of frequency reduction requires the participation of all entities of the electric power system (System Operator, network organizations, consumers). Comparison of the existing devices by functional and the presence of locks from rate of change of frequency is made. Also, scientific and technical problems are formulated, the solution of which is necessary to prevent false triggering of the automatic frequency unloading when the electric motors run out.

Keywords

• automatic frequency unloading
• blocking from false triggering
• rate of change of frequency
• false triggering
• run-out of the motor load