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HUFNAGL, E., AIGNER, M., SCHMAUTZER, E.
EVALUATION OF AN URBAN MEDIUM VOLTAGE NETWORK USING RELIABILITY INDICES
KOMUNALNA ENERGETIKA / POWER ENGINERING, 26
This article deals with the assessment of reliability indices of a medium voltage network. In order to evaluate an urban medium voltage network, several steps can be taken to determine the reliability indices describing the network in its current state, as well as for potential changes caused by e.g. reinforcement of the electrical installation, restructuring measures, increased generation and demand in the network structure. To successfully conduct the following calculations, the correct use of the input data for the created reliability datatypes and reliability values is essential. By using reliability indices an impartial comparison between various options (referring to the cited measures) is possible.
SREĆKOVIĆ, N., ŠTUMBERGER, G.
INFLUENCE OF ADDITIONAL PHOTOVOLTAIC UNITS ON ENERGY SAVINGS IN THE PART OF THE MIDDLE-VOLTAGE NETWORK IN MARIBOR
KOMUNALNA ENERGETIKA / POWER ENGINERING, 31
With higher penetration of distributed generation units in the distribution network, it has become important to evaluate their influence on network operating conditions. The paper analyzes the influence of active and reactive power generation of additional photovoltaic (PV) units in the part of the middle-voltage network in Maribor. Based on assessment of buildings’ roof PV potential, the most suitable roofs for PV system installation and their influence on yearly energy savings have been determined. The results show the energy savings achieved, due to the power loss reduction, obtained by the additional PV unit installation. Furthermore, energy savings achieved through proper reactive power generation are evaluated as well.
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