A novel fast power swing blocking strategy for distance relay based on ADALINE and moving window averaging technique

Abstract

This study proposes a a novel efficient strategy for identifying symmetrical faults from power swings in order to improve the performance of distance relay. This method is based on two new indices and the use of adaptive linear neuron and moving window averaging technique, which is applied to the waveforms of the current. If the proposed algorithm detects power swings, it enables power swing blocking; and if it recognises the occurrence as a symmetrical fault, it resets the power swing blocking as quickly as possible. The efficiency of the proposed method has been tested in different conditions and compared to other methods from different points of view. Simulation results under different conditions in PSCAD and MATLAB software show that the proposed strategy is able to detect symmetrical faults from power swings with high accuracy. The high robustness of adaptive linear neuron and the moving window averaging technique has made the proposed method highly noise-resistant; and also, because of its low computational cost, the response speed of the proposed strategy is very high, and hence its practical implementation is simple.

A comprehensive overview of the ADALINE method applied to rapid voltage sags detection in multi-motors drive systems

“…The structure of the ADALINE network is described in Figure 1. The estimated output y(k) of the reference signal d(k) is given by the following linear [15]:…”

“…Nowadays, with the development of artificial intelligence techniques, artificial neural networks (ANN) have been used to analyse the power quality [13], [14]. Based on adaptive linear neural network (ADALINE) [15]- [17], a method of power quality analysis by time location is brought forward in this paper. This approach uses an adaptive neural network with N inputs and one output.…”

A new power swing detection method in power systems with large‐scale wind farms based on modified empirical‐mode decomposition method

“…Nowadays, most mankind's electricity demand is supplied via transmission and distribution power systems. These systems transmit the generated energy in the power plants to the consumer through transmission lines [1]. Since power transmission lines have a significant role in this process, protecting them is extremely crucial to maintain network stability and ensure stable energy transmission [2].…”

An overview of power swing detection methods in distance relays and the factors involved

“…In current power systems, power transmission lines are considered a desirable conductor for transporting electrical energy. These lines transport electrical energy to remote locations with low power losses to reach the consumers through distribution networks [1]. Power transmission lines are one of the most essential components of a power system.…”