Complementary Improvement of Primary Frequency Modulation Capability of Multi-type Small-scale Thermal Power Units in Virtual Power Plant
Aiming at the problems of small generation load and insufficient primary frequency modulation capacity of small thermal power units,which cannot be included in the framework of virtual power plant,this paper improved the primary frequency modulation capacity and new energy absorption capacity of small thermal power units by transforming small thermal power units and coupling several small thermal power units.The parameters related to the thermoelectricity of the unit were selected.EBSILON Profes-sional software was used to simulate the unit,and the evaluation and comparative analysis of the peak regulation load space of multiple units were conducted.Python language was used to calculate multiple small-scale units'deep coupling peaking potential for drawing up virtual plant load dispatching instruc-tions.The calculation results show that all three units'coupled capacity can meet the national feed-in tar-iff after the extracted steam modification.Meanwhile,under different working conditions,the multi-unit coupling can accommodate up to 7.36 MW of other energy sources,and up to 163.66 MW of heat supply for the heat network.The average coal consumption rate of the three units can reach 890.40 kg/(kW·h).
virtual power plantprimary frequency modulationmulti-unit coupling
万方数据
维普
