Grid-oriented load control and an innovative energy-conservation dispatch
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Abstract:
There are mainly two kinds of plants in China, i.e. coal-fired cogeneration and condensing plant. The authors propose an energy-conservation dispatch between them, which is realized through space heating load control based on mass introduction of electric heat pumps (EHPs) on the users’ side. Firstly, space heating service can be shared by heating radiators and EHPs through heating water or electricity as energy carriers. Secondly, the transmission distance of heating water and electricity consumption of EHPs for space heating are considered as the new variables. In addition, though the original space heating load and non-heating electricity load are kept same, the practical boundary conditions of space heating load and non-heating electricity load is expanded from the plants to the end users’ side, which develops new constraints equivalently and results in the potential energy conservation dispatched. Finally through numerical simulation, the energy conservation is revealed to be affected by EHPs with various coefficient of performance (COP) and spatial distribution of space heating load.
