A comprehensive energy supply system and method for urban complexes and large public buildings

Abstract

The invention discloses a comprehensive energy supply system and method for urban complexes and large-scale public buildings. A distributed new energy power generation device is used as the main energy supply device, and an energy storage device is used to adjust the instability of new energy power generation. As a supplementary energy source, compared with the energy supply system of traditional urban complexes, the utility power reduces the dependence on the utility power. Since the distributed new energy generation device generates electricity through new energy sources such as solar energy and wind energy, the pollution is small and the cost is low. , the distance from the load demand side is small, the transmission distance is short, the line loss is low, and the geographical restrictions are small. At the same time, the use of compressed air energy storage devices can not only adjust the quality of new energy power, but also meet the requirements of power supply, cooling and heating. The energy supply demand solves the problem that the current energy supply system of urban complexes is too dependent on municipal electricity, with large line loss, high electricity cost, low reliability, and a single type of energy supply. Even with geothermal and gas turbine units as supplements, there are still regional Limited technical issues.

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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