A Fast Bus Bar Protection Based on Fault Superimposed Current Polarity Comparison

Microgrid Fault Protection Based on Symmetrical and Differential Current Components

Unbalanced and over current Fault protection in low voltage DC bus micro grid systems

Unlike traditional AC distribution systems, protection has been challenging for DC systems. Multi-terminal DC power systems do not have the years of practical experience and standards that AC power systems have. Also, the current power electronic devices cannot survive or sustain high magnitude faults. Converters will shut down to protect themselves under faulted conditions. This makes locating...

Fast Transient Fault-Current Detection Based on PQR Transformation Technique for a Solid-State Fault Current Limiter

Abstract: This paper describes analysis, modeling and simulation of electrical transient fault-current detection in power systems. The proposed modeling is based on simple numerical integration only, which is able to efficiently handle some sophisticated calculation. The proposed fault detector methods are sliding root mean square (SRMS) and PQR transformation technique. In this paper, an abnor...

An Artificial Intelligence Based Approach For Bus Bar Differential Protection Faults Analysis In Distribution Systems

The application of Artificial Intelligent approaches was introduced recently in protection of distribution networks. These approaches started with introducing Fuzzy Inference System (FIS), then using Artificial Neural Network (ANN).In this research, the application of Adaptive Neuro Fuzzy Inference System (ANFIS) for protection of bus bars will be illustrated. The ANFIS can be viewed as a fuzzy...

A Comprehensive Study on IEC61850 Process Bus Architecture and Spit Bus Based Differential Protection

IEC61850 communication standard for digital substation automation creates a new way to think about conventional protection scheme and configuration of substation. The presence of communication link in process bus makes a revolutionary change for future digital substation. This paper discusses briefly about process bus architecture and presents a new approach of thinking in busbar structure to m...