DETECTION AND CORRECTION OF FAULT INDUCED DELAYED VOLTAGE RECOVERY

摘要

Disclosed herein are methods for detecting and correcting a fault induced delayed voltage recovery event in an electric power transmission and distribution system. In some embodiments, a fault detection subsystem may receive an indication of a fault in the electric power transmission and distribution system. The system may also include a load analysis subsystem to analyze a plurality of loads supplied by the electric power system and to generate an estimated response of the loads. A fault analysis subsystem may analyze a plurality of factors relating to the fault and to determine a probability of the fault generating a fault induced delayed voltage recovery event. A control system may then implement a control strategy within a control window following the fault based on the probability of the fault generating a fault induced delayed voltage recovery event and the estimated response of the at least one load.

主权项

1. A system configured to detect and correct a fault induced delayed voltage recovery event in an electric power transmission and distribution system, the system comprising:
a remote fault detection subsystem configured to receive an indication of a fault in the electric power transmission and distribution system; a load analysis subsystem configured to analyze a plurality of loads supplied by the electric power transmission and distribution system to generate an estimated response of at least one load to a control action; a remote fault analysis subsystem configured to analyze when the fault occurs with respect to a phase of a waveform, a duration of the fault, and a drop in a voltage due to the fault and to determine a probability of the fault generating a fault induced delayed voltage recovery event; a temperature analysis subsystem configured to determine a temperature in the geographic area supplied by the electric power distribution and transmission system; and a control system configured to implement a control strategy within a control window following the fault, the control strategy comprising at least one control action to respond to the fault induced delayed voltage recovery event based on the probability of the fault generating a fault induced delayed voltage recovery event, the estimated response of the at least one load, and the temperature in the geographic area supplied by the electric power distribution and transmission system.