Comprehensive energy supply system and method for urban complex and large-scale public building group

Abstract

The invention discloses a comprehensive energy supply system and method for an urban complex and a large-scale public building group. A distributed new energy power generation device is taken as a main energy supply device, an energy storage device is used for adjusting instability of new energy power generation, electric supply is taken as an auxiliary energy source, compared with the traditionalenergy supply system for the urban complex, dependence on the electric supply is reduced, the distributed new energy power generation device generates electricity by virtue of new energy resources such as solar energy and wind energy, pollution is low, cost is low, distance with a load demand side is short, transmission distance is short, line loss is low, and geographic restriction is less; meanwhile, a compressed air energy storage device is adopted, not only new energy resource electric energy quality can be adjusted, but also multiple energy supply demands such as power supply, cold supply and heat supply can be met, and the technical problems that the current energy supply system for the urban complex depends too much on municipal electricity, the line loss is high, electricity utilization cost is high, reliability is low, energy supply type is single and the geographic restriction still exists even if terrestrial heat and a gas turbine set are taken as supplements.

Description

technical field [0001] The invention relates to the field of power systems, in particular to an integrated energy supply system and method for urban complexes and large public buildings. Background technique [0002] Urban complexes and large public buildings and other occasions have demands for various forms of energy, such as electric energy, domestic hot water, and cooling demands. The existing energy supply mode basically uses municipal electricity to supply electric heaters or air-conditioning refrigeration equipment and other electrical equipment, and directly converts electric energy into other forms of energy to meet the comprehensive energy needs of urban complexes and large public buildings. [0003] However, this energy supply mode that uses municipal electricity as a single energy input has many defects, including: the municipal electricity needs to be transmitted through the grid for a long distance, and there is a large line loss during the transmission process...

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Problems solved by technology

[0006] The invention provides a comprehensive energy supply system and method for urban complexes and large public building groups, which solves the problem that the current energy supply system of urban complexes relies too much on municipal electricity, has large line loss, high electricity cost, and low reliability. Low, single type of energy supply, even with geothermal and gas turbine units as supplements, there are technical problems of geographical restrictions

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