Abstract— An important aspect of network management is fault management, i.e., determining, locating, isolating, and correcting faults in the network. We study modeling of communication network protocols, and their fault detection, fault identification and fault location in the discrete event systems diagnosis framework. Our approach provides a systematic way of performing fault diagnosis in ne...

The freeFOClib (short for “free Field-Oriented Control library”) provides a framework for simulations of electric drives with different application purposes. The library can be used to simply build a field-oriented control system for existing machine models from the Modelica Standard Library, investigate the impact of electric faults (battery faults, inverter faults, machine faults) on a electr...

A new one-end fault location algorithm designated for series-compensated transmission lines is delivered in this paper. It is based on differential equation approach, which allows good reflection of the dynamic phenomena relevant for faults occurring behind the bank of series capacitors (SCs) equipped with metal oxide varistors (MOVs). As a result of that, a good stabilisation of the estimation...

Power cable is mainly responsible for the transmission and distribution of electric energy in power grid. The performance a greatly affects reliability security supply. In order to solve problem aging caused by long-term operation various internal external factors, this paper proposes an abnormal line loss identification method low-voltage network station area, aiming at focusing on monitoring ...

A diagnosis system for the electric machine and the power electronics in a hybrid electric vehicle is designed, where the diagnosis system uses a map based model of the system to be monitored. Such a model gives an accurate description of the fault free system, and is therefore suited for fault detectability. However, one drawback using such a model for diagnosis is that fault isolation often r...

Standard IDDQ testing is limited by the ability to distinguish a small fault current from a large background leakage current: this limitation is overcome in FPGAs by differential IDDQ testing. Partitioning of interconnects—dividing the interconnect resources of an FPGA into groups—further increases the detectability of a fault current. Fault location can be achieved by iteratively applying part...

Fault location has been studied deeply for transmission lines due to its importance in power systems. Nowadays the problem of fault location on distribution systems is receiving special attention mainly because of the power quality regulations. In this context, this paper analyses the influence of the capacitance of cables and compensation capacitor banks when impedance-based algorithms are use...