摘要:Transmission line act as a medium of transportation for electrical energy from a power station
to the consumer. There are many factors that could cause the cascading collapse such as
instability of voltage and frequency, the change of environment and weather, the software and
operator error and also the failure in protection system. Protection system plays an important
function in maintaining the stability and reliability of the power grid. Hidden failures in relay
protection systems are the primary factors for triggering the cascading collapse. This paper
presents an Artificial Neural Network (ANN) model for prediction of cascading collapse
occurrence due to the effect of hidden failure of protection system. The ANN model has been
developed through the normalized training and testing data process with optimum number of
hidden layer, the momentum rate and the learning rate. The ANN model employs probability of
hidden failure, random number of line limit power flow and exposed line as its input while trip
index of cascading collapse occurrence as its output. IEEE 14 bus system is used in this study to
illustrate the proposed approach. The performance of the results is analysed in terms of its Mean
Square Error (MSE) and Correlation Coefficient (R). The results show the ANN model produce
reliable prediction of cascading collapse occurrence.