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Classification of PD Faults Using Features Extraction and K-Means Clustering Techniques
Partial discharge (PD) diagnostic is a crucial tool for condition monitoring of power system equipment (e.g. switchgear, cable) in the medium voltage (MV) network, which is degraded by the gradual deterioration of insulation ...
VINPOWER Vaasa innovation platform for future power systems : Final report (summary)
The main objective of the project was to develop smart grid related expertise within the University of Vaasa. While the parallel project (Smart Energy Systems Platform – SESP) focused on the development of the physical ...
Light-weight IEC 61850 GOOSE based LoM protection for smart grid
This paper presents a novel Loss of Mains (LoM) protection method based on IEC 61850 General Object Oriented Substation Event (GOOSE) protocol. With the increased penetration of distributed generation (DG), the requirements ...
Intermittent earth fault passage indication in compensated distribution networks
An intermittent or restriking earth fault is a special type of earth fault that is common mostly in compensated cable networks. A great deal of effort has gone into protection against this type of fault. However, locating ...
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 ...
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 ...
Online condition monitoring of MV cable feeders using Rogowski coil sensors for PD measurements
Condition monitoring is a highly effective prognostic tool for incipient insulation degradation to avoid sudden failures of electrical components and to keep the power network in operation. Improved operational performance ...
Alternative solutions for advanced security of supply
(International Conference and Exhibition on Electricity Distribution CIRED, 2019-06-01)
The restrictions regarding the maximal length of outages especially under major storms has resulted in massive underground cabling projects in the network companies in Finland and Sweden. Due to these expensive investments ...
Power line signalling based earth fault location
(Institution of Engineering and Technology, 2018)
Fault location in power networks is important as accurate information about the faulted line section expedites system restoration following a fault occurrence. A number of fault location methods have been proposed. Methods ...
Design and Analysis of New Harbour Grid Models to Facilitate Multiple Scenarios of Battery Charging and Onshore Supply for Modern Vessels
The main objective of this study is to develop and analyse diﬀerent harbour grid conﬁgurations that can facilitate the charging of batteries for modern vessels and supply onshore power. The use of battery energy storage ...