RESEARCH INFLUENCES THE STRUCTURE TO THE OPERATION OF THE ENERGY HUB

Abstract

Energy Hub (EH) acts as the transceiver of different energy forms through a system of energy conversion, distribution and storage devices. The structure and components of the model are chosen primarily based on the features and requirements of the load. The EH’s structure place a great impact on the reliability and performance efficiency of the model. The paper aims to prove this statement by performing optimizing calculations of the EH model with different structures (12 scenarios of operation) that take into account data from loads in a new urban area of Vietnam. Those scenarios of operation correspond to the combination of devices whose structures range from simplicity to complexity (with the involvement of solar energy, wind, and energy storage). The objective function for the total energy cost of the EH model within 24 hours is minimized with various conditions: energy balance, capacity limit of the system and energy load storage system capacity, power tariffs and natural gas. The calculation is performed by General Algebraic Modeling System (GAMS) software and the results allow the users to evaluate the role and efficiency of different device structures in the EH model while selecting the appropriate EH model to maximize savings in cost of energy.