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Earth Fault Location Using Negative Sequence Currents
(Molecular Diversity Preservation International (MDPI), 2019-09-30)
In this paper, a new method for locating single-phase earth faults on non-effectively earthed medium voltage distribution networks is proposed. The method requires only current measurements and is based on the analysis of ...
Combined Islanding Detection Scheme Utilizing Active Network Management for Future Resilient Distribution Networks
(Institution of Engineering and Technology (IET), 2018-07-18)
Needed new cost-efficient, reliable, standardised and redundant solutions for future resilient smart grids must utilise possibilities of advanced ICT technologies (such as wireless fifth generation and cloud servers with ...
Controller development for reactive power flow management between DSO and TSO networks
(Institute of Electrical and Electronics Engineers (IEEE), 2019-11-21)
In the future, new solutions for active and reactive power control related to the flexibility services offered by distributed energy resources (DER) will be needed even more. One ancillary service which DER could provide ...
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 ...
Testing an IEC 61850-based light-weighted controller for reactive power management in smart distribution grids
(Institute of Electrical and Electronics Engineers (IEEE), 2019-12-09)
Due to the large-scale integration of distributed energy resources (DER) new options for the local and system-wide technical ancillary services are needed. Reactive power control is one of such ancillary service provided ...
Modelling and simulation of hybrid PV & BES systems as flexible resources in smartgrids - Sundom smart grid case
Ever-growing energy needs and larger penetration of renewable energy in the power grids with higher intermittency in power generation cause the need for flexible energy sources. Flexible sources such as distributed generation, ...
Operative factors affecting energy balancing and speed of equalization in battery storage system
Energy storage systems play a significant role in power management systems and control of the modern grid. One of the most challenging issues is controlling storage units in distributed form. This paper presents a possible ...
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 ...
Principles of power management in a smart microgrid based on Std. IEC 61850
In recent years, the structure of the electrical power system has changed, and all aspects of power generation have shifted towards bidirectional and smart methodology. The Microgrid (MG) as a popular concept for the modern ...
Prospects and costs for reactive power control in Sundom smart grid
New options to provide the technical ancillary services locally and system-wide by distributed energy resources (DER) are needed in the future. Sundom Smart Grid (SSG), local smart grid pilot in Vaasa, offers a novel ...