TY - JOUR
TI - Energy management strategies for combined heat and electric power micro-grid
AU - Barbarić Marina
AU - Lončar Dražen
JN - Thermal Science
PY - 2016
VL - 20
IS - 4
SP - 1091
EP - 1103
PT - Article
AB - 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-gird 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.