Energy saving optimization of thermal power co-generation automation system in power plant

In order to establish a new optimal load distribution between CHP units and

wind turbines and realize a new type of energy-saving dispatching, the

authors proposed a dispatching system based on smart grid. The author

proposed that the heat pump with electric drive air conditioning should

share part of the heating load of the hot water radiator, accordingly, the

supply of heating water is reduced, increase heating power load. This

directly leads to the increase of the total power load in the grid and the

decrease of the total heating and hot water load, changing the proportion of

thermal power load. Based on the new heating water and power load

constraints, a mathematical model of optimal scheduling is established, the

energy-saving dispatching of cogeneration units and wind turbines is

realized. The simulation results show that using the new energy-saving

scheduling method, 342.4 MWh of fuel can be saved per hour, and the energy

saving benefit is about 8.83%. If the calorific value of standard coal is

29271 kJ/kg, this means that the fuel consumption savings per hour is about

42.14 ton standard coal. The calculation results show that the higher the

value is, the more economically feasible the feed-in price of wind power is.

In conclusion based on the current electricity price and heating heat price,

in order to ensure that the economic benefits of each participant are not

changed, the feed-in price of wind power is discussed, and the economic

feasibility of the method is proved.