A new intelligent time series prediction technique for coherency identification performance enhancement

الملخص EN

The manuscript proposes a time series prediction technique to enhance the response time of the coherency identification technique.

the proposed methodology utilizes the nonlinear autoregressive exogenous neural network (NARX) algorithm to predict the generator speed deviations following a disturbance in the system.

consequently, the coherency identification technique based on independent component analysis (ICA) is utilized on the predicted system responses.

the effectiveness of the proposed approach is demonstrated on of the IEEE 16-generator 68-bus test system model.

the result shows that the proposed technique can predict 0.2s following a disturbance in the system accurately.

therefore, the NARX allows a 0.2s head start for the ICA to determine the real-time coherent generator group in the system.

furthermore, the result shows that the proposed approach can identify the coherent group of generators based on the predicted generator speed deviation in all cases considered in this study, accurately.

conclusively, the result implies that the proposed technique can speed up the overall coherency identification process in a power system operation.