Performance And Economic Analysis Of Heat Generation And Supply System By Accommodating Abandoned Wind

In recent years,China’s northern regions have gradually promoted clean heating and transformation,mainly through measures such as "coal to gas","coal to electricity",and "clean coal combustion".Among them,the main heating method adopted by "coal-to-electricity" is electric direct heating mode.This mode is to directly use electricity to heat the residents,and there are problems of waste of energy and high heating costs.At the same time,although the situation of wind abandonment in the northern region has improved.the energy waste caused by wind abandonment is still a huge number.In view of the current problems of electric heating in northern regions and the current situation of wind power abandonment in China,we can consider using abandoned wind for power heating.The use of abandoned wind for electricity heating can not only eliminate abandoned wind and improve energy efficiency,but also has the advantages of energy saving and emission reduction,and good economy.However,during actual operation,it is found that the energy saving effect and economic efficiency of the wind power heating pilots that have been put into operation are not ideal.This article intends to conduct in-depth research on the existing problems,as follows:In view of the strong randomness of wind abandonment of wind power,combined with the measured data of a wind farm to obtain wind abandonment data and research and analyze it,summarize the general rules of abandonment of wind.A mathematical model of an electric heating-heating system using abandoned wind for heating is established,the working principle of the heating system is explained,and the selection and capacity configuration of the heating device of the system are studied.The current operation mode,energy saving benefits and economy of wind power heating pilots in China are studied.First,a mathematical model of power consumption.coal saving effect,social benefit,and economics of the wind power heating and heating period is established,and a specific example is used for research and analysis in conjunction with wind farm abandoned wind data.The calculation results of the calculation examples show that the wind power supply running in the fixed operation mode can absorb part of the abandoned wind,and has certain advantages in energy saving and emission reduction compared with the traditional coal-fired boiler and thermal power unit heating.However,the economic efficiency of wind power heating in this mode of operation is poor.the heating is at a loss,and the feasibility of promotion is low.In order to improve the economic efficiency of wind power heating and make the heating system more flexible.an economic operation mode is proposed and the thermal inertia of the energy-saving building is used to optimize the heating.Based on the previous calculation examples.the calculation and analysis of the optimization effect of electric heating in all aspects after optimization.It can be found that the optimized wind power heating has significantly improved in terms of wind abandonment,energy saving benefits,and economy.Comprehensive analysis of heating costs and benefits found that the optimized heating solution can reach a state of balance of payments,and the feasibility of large-scale promotion of wind power heating in the north has increased.