جستجوی مقالات مرتبط با کلیدواژه « electricity network » در نشریات گروه « برق »

Nowadays, in the electric power industry, optimal and effective design and operation of gas and electricity networks are tightly related together. In cooperative operation of the electricity and gas industry, one of the main goals is the coordination of the electricity and gas network to achieve minimum operation cost. In this research, the centralized operation of electricity and gas networks is modeled on a real case study in Khorasan province. This modeling is from the point of view of a central coordinator, seeks to minimize the total operation cost of electricity and gas networks while taking into account the technical constraints. Decomposition methods based on ATC and ADMM methods is accomplished to preserve the privacy of gas and electricity networks. Gas consumption in gas and electricity networks is compared using different methods including ADMM, ATC and centralized methods wherein fuel cost is supposed to be $ 3.5 per million BTUs. Different load and fuel scenarios have also been investigated.

Planning for the coordinated expansion of generation units, taking into account the fuel needed, has always attracted the attention of power industry planners. Failure to coordinated expansion of electricity and gas networks will result in excessive investment and, in some cases, defects in power supply. Therefore, there is a need to a model coordinating the expansion of electricity and gas networks, while taking into account the technical constraints. In this study, centralized expansion of gas and electricity networks is modeled by considering N-1 security criterion in gas network. This modeling is from the perspective of a central investor who, considering the technical constraints, seeks to minimize the total cost of investment and operation of the electricity and gas networks. The results of the gas network investment problem indicate that there is a need to increase pipeline capacity in some areas. In the proposed case study, the investment cost of the gas network is $19 million, while the total cost of investment and operation of the gas network is $37.19 billion. On the other hand, in the electricity grid, new power plants need to be installed in the designated areas. The results also indicate that the capacity of the F-H transmission line should be increased. Moreover, considering the N-1 criterion for gas pipeline outages, the power grid would prefer to install about 3200 MW of new generation units all around the grid thereby boosting the power network against pipeline outages. However, 2400 MW of new generating units would be adequate when N-1 criterion is omitted.