COMPARATIVE EVALUATION OF STAND-ALONE HYBRID POWER SYSTEM WITH DIFFERENT ENERGY STORAGES

摘要

Nowadays, increasingly technological im-provements and population augmentation lead to searching for new energy resources. The limited en-ergy resources against growing energy demand lead increase in the trend towards Renewable Energy Re-sources(RES)such as solar and wind. The lack of continuity in energy generation of RES due to weather conditions causes fluctuations in the power network. The energy surplus from RES can be charged, and then the stored energy can be dis-charged if needed to prevent the fluctuation. The uti-lization of storage increases energy costs. However, it is possible to reduce this cost thanks to proper en-ergy management. Thus,it is of great importance to determine the most appropriate storage management according to generation and loading profile. In this study, management of a hybrid power system (HPS)is proposed for the facility location in Balikesir, Tur-key.The proposed HPS includes modeling of solar panels (PV), wind turbine (WT), diesel generators (DG),and six different battery types. The technical and economic performances of HPS configurations containing six different battery types are optimized. Besides, the sensitivity of the results is analyzed. A new approach for optimal battery selection is pre-sented to increase the efficiency of HPS.