Naslov
Energy management strategies for combined heat and electric power micro-grid

Autori
Barbarić, Marina ; Lončar, Dražen

Izvornik
Thermal science (0354-9836) 20 (2016), 4; 1091-1103

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
thermal storage system; flexible operation; micro-grid; mixed integer linear programming; grid-connected mode; model based predictive control

Sažetak
The increasing energy production from variable renewable energy sources such as wind and solar has resulted in several challenges related to the system reliability and efficiency. In order to ensure the supply- demand balance under the conditions of higher variability the micro-grid concept of active distribution networks arising as a promising one. However, to achieve all the potential benefits that micro-grid concept offer, it is important to determine optimal operating strategies for micro-grids. The present paper compares three energy management strategies, aimed at ensuring economical micro- grid operation, to find a compromise between the complexity of strategy and its efficiency. The first strategy combines optimization technique and an additional rule while the second strategy is based on the pure optimization approach. The third strategy uses model based predictive control scheme to take into account uncertainties in renewable generation and energy consumption. In order to compare the strategies with respect to cost effectiveness, a residential micro-grid comprising photovoltaic modules, thermal energy storage system, thermal loads, electrical loads as well as combined heat and power plant, is considered.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA