From A Climate Action Plan (CAP) to a Microgrid: The SEEU Sustainability Concept Including Social Aspects

Following new global trends, the South East European University (SEEU), besides excellence in teaching and research, is committed to contributing to climate change effects and energy efficiency. SEEU will introduce a microgrid as a further step from the CAP towards energy sustainability. This paper presents the SEEU CAP and microgrid and also highlights benefits that are related to socio-economic conditions and the environment, including social aspects and sustainability

Calculation Model and Analyses of Grounding of the Fence on Medium Voltage Stations

Groundings of transformer stations (TS) in power networks with neutral point grounded by small resistively, in the case of single pole fault to ground, may to find on high potential. In such a case considerable potential differences can be registered between some points into and around transformer station and to come to high touch and step voltages. In this paper results of analysis of particular case are introduced, TS MV/MV (medium voltage) 35/10 kV'Omorane2', near by Veles, which is make to find optimum way for grounding of the fence to satisfied safety criteria's, given in rules and recommendations. The analysis have for purpose not just to answer of the problem which is already described, thus to give some general thinking and recommendations in the general case

Application of Matlab Tool for Analysis of Complex Grounding Systems of Overhead Power Lines

n the paper, first it is said in general what is meant by grounding system, the need for protection as well as the consequences in case of overvoltage. The procedure for solving a complex grounding system at overhead lines is further presented, with the manner of exact modelling of a real overhead power line. In the main part, by applying the already mentioned procedure on a real example of the transmission power line Bitola - Prilep through a developed application in MATLAB, the grounding system will be solved in case of short circuit on the towers. Finally, the step and touch voltages will be presented and a conclusion will be made whether those values are within the normal range

Implementation of K-Nearest Neighbor Regression for Forecasting Electricity Demand in Power System of Republic of North Macedonia

Load forecast is an important factor for operational and development planning of power system. Factors that play key role in forecasting power load consumption are the air temperature, type of the day (weekday, weekend or holiday), geographical differences, people standard, gross domestic product, demographic information, energy efficiency etc. The air temperature is one of the factors, which has significant impact on electricity consumption and power system load. This paper analyses the correlation between the power system load and the air temperature in Republic of North Macedonia. Furthermore, forecasting of the power system load is investigated. The power system load forecast is performed by applying k-nearest neighbor machine learning model. The power load depends on two variables – air temperature and date. Results show that for power load forecasts, k-nearest neighbor regression outperform

Usporedba statističkih klaster metoda u analizi proteina elektroforezom

Standard electrophoresis methods were used in the qualitative and quantitative protein analyses of cerebrospinal fluid (CSF). Disc electrophoresis was carried out for detection of oligoclonal IgG bands in cerebrospinal fluid on polyacrylamide gel. Pairs of CSF and serum were taken from 30 patients, mainly with multiple sclerosis and other central nervous system dysfunctions, polyradiculoneuritis, known as Guillain-Barre syndrome, encephalitis, paraproteinemia, and analyzed. ImageMaster 1D Elite and GelPro specialized software packages were used for fast accurate image and gel analysis. The results obtained from different hierarchic cluster analysis methods were compared. In some cases, despite substantial similarities between electropherograms, different cluster methods produced different dendrograms. Therefore, the cluster analysis should be used cautiously. It offers only additional diagnostic information on the inflammatory conditions of the central nervous system.Standardne metode elektroforeze upotrebljene su u kvalitativnoj i kvantitativnoj analizi proteina cerebrospinalne tekućine (CSF). Detekcija oligoklonalnih IgG proteina u cerebrospinalnoj tekućini provedena je disk elektroforezom na poliakrilamidnom gelu. Analizirani su uzorci CSF i seruma od 30 pacijenata s multiplom sklerozom i drugim oboljenjima središnjeg živčanog sustava kao što su poliradikuloneuritis, poznat kao Guillain-Barre sindrom, encefalitis i paraproteinemia. ImageMaster 1D Elite i GelPro specijalizirani kompjutorski programi upotrebljeni su za brzu analizu slike i gela. Usporedbom rezultata dobivenih iz različitih hijerarhijskih klaster analiza utvđeno je da različite klaster metode ne daju iste rezultate. Usprkos sličnostima elektroferograma različite klaster metode u nekim slučajevima daju različite dendrograme pa je potreban oprez u interpretaciji rezultata. Klaster analiza daje samo dodatne dijagnostičke informacije o upalnom stanju središnjeg živčanog sustava

Standardized design solutions for typical and adapted distribution substations 10(20)/0.4 kV

In this paper will be shown the whole process of designing type and adapted distribution substation 10(20)/0.4 kV using the standardized solutions