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2 Przegląd Elektrotechniczny

2 2013

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The quality of electric power supplied into the grid by co-generation units

Jansa J., Moldrik P., Minarik D.

Przegląd Elektrotechniczny

2013

R. 89, nr 11

73-76

This paper deals with the utilisation of firedamp for combined heat and electric power generation. The firedamp is gained from hard-coal mines and can be combusted in a co-generation units with gas-engine. This process involves more efficient utilisation of firedamp. The measurement results obtained on selected co-generation units are described in this paper. As far as the electric power supplied into the grid from cogeneration unit´s are concerned, these shall be considered with respect to the qualitative parameters, which should comply with stipulations of the CSN EN 50160 standard. The main advantages and disadvantages of co-generation units producing heat for hard-coal mine and electric power for export to the grid are described in the end of this paper.

Opisano możliwość wykorzystania gazu kopalnianego do ogrzewania i wytwarzania energii. Gaz może być wykorzystany w kogeneratorze z silnikiem gazowym. Opisano wybrane systemy wytwarzania energii.

Energy storage system in connection with a PV power plant

Moldrik P., Minarik D., Hradilek Z.

Przegląd Elektrotechniczny

2013

R. 89, nr 11

65-68

This paper deals with issues associated with operation a selected photovoltaic (PV) power plant with reference to negative impacts on the grid, where this power plant is connected to. The description provided deals with one of the potential solutions for the particular issues that is represented by an balancing of this diagram showing production outcome of this PV power plant by application of a suitable storage system (accumulator). Optimal dimensions of the accumulator have been determined using a simulator calculation with the aim to suppress the largest number of adverse return impacts from the PV power plant against the grid.

Analizowano związek między pracą wybranych źródeł fotowoltaicznych a negatywnym ich wpływem na sieć. Pomocnym może być wykorzystanie odpowiedniego systemu magazynowania energii.