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Performance Comparison of PD Data Acquisition Techniques for Condition Monitoring of Medium Voltage Cables
Already installed cables are aging and the cable network is growing rapidly. Improved condition monitoring methods are required for greater visibility of insulation defects in the cable networks. One of the critical ...
Hardware-in-the-loop Testing of Line Differential Protection Relay Based on IEC 61850 Process Bus
(The Institution of Engineering and Technology, 2020)
The term digital substation refers to the process of managing operations between intelligent primary devices and distributed Intelligent Electric Devices (IEDs) interfaced with a highly secure communications network. The ...
Evolution of the Electricity Distribution Networks : Active Management Architecture Schemes and Microgrid Control Functionalities
The power system transition to smart grids brings challenges to electricity distribution network development since it involves several stakeholders and actors whose needs must be met to be successful for the electricity ...
Non-Directional Earth Fault Passage Indication in Isolated Neutral Distribution Networks
In this paper, two new methods for locating single-phase to ground faults in isolated neutral distribution networks are proposed. The methods are based on the analysis of symmetrical sequence currents. They are solely based ...
Identifcation and Location of Partial Discharge Defects in Medium Voltage AC Cables
(Nordic Insulation Symposium, 2019-08-05)
The presence of partial discharge (PD) in electrical equipment is the confirmation or indication of an ongoing degradation of its dielectric insulation. PD study is a widely used tool for condition monitoring of medium ...
Functional Analysis of the Microgrid Concept Applied to Case Studies of the Sundom Smart Grid
(Molecular Diversity Preservation International (MDPI), 2020-08-15)
The operation of microgrids is a complex task because it involves several stakeholders and controlling a large number of different active and intelligent resources or devices. Management functions, such as frequency control ...
Design and Implementation of a Wireless Automation Module for Diesel Engines
This paper describes the design of wireless CAN protocol with the aim to replace existing wired CAN protocol communication between the Smart NOx sensor on diesel engines and the Engine Control Unit (ECU). Wireless industrial ...
Proactive Condition Monitoring for Power Grid
(Tallinn University of Technology, 2020)
Increased dependability and the demand of electric power have compelled the electrical utilities to focus on the modernization of power distribution systems. One of the major deriving forces to modernize is the demand for ...
Evaluation of New Grid Codes for Converter-Based DERs From the Perspective of AC Microgrid Protection
The ever-increasing penetration levels of converter-based distributed energy resources (DERs) in medium and low voltage (MV/LV) distribution networks necessitate new and revised standards or connection requirements of ...
AC Microgrids Protection : A Digital Coordinated Adaptive Scheme
A significant challenge for designing a coordinated and effective protection architecture of a microgrid (MG) is the aim of an efficient, reliable, and fast protection scheme for both the grid-connected and islanded modes ...