Beijing heat-power-gas co-distribution system

Beijing heat-power-gas network couples through coal-fired cogeneration power plants, gas-fired combined cycle cogeneration power plants and gas-fired peak-load boilers. With the development of Beijing urban natural gas popularization, the local imbalance of gas demand and supply proves to be particularly pronounced, which arouses the necessity of co-distribution from a systematic perspective. The structure and functions of co-distribution platform was designed based on investigation and analysis of current heat, power and gas physical system as well as scheduling mechanism. As a preliminary exploration, this paper established platform core layer. Performance diagram was used to describe the coupling characteristics of cogeneration units, and on the basis of this, five kinds load distribution patterns were built. Two examples were given to demonstrate the load distribution under various demand and supply conditions.