Research On Thermal Demand Response Participating In Wind Power Consumption Model

Due to the intermittent,volatility and anti-peak characteristics of wind power output.One of the most obvious problems in the Northern region areas in China with abundant wind power resources is the problem of large-scale access to power systems in wind power.The operation mode of the "heat-set" heat-generator group causes the output of the thermal power unit to fail to perform effective adjustment means,which is the main cause of wind power abandonment.By adding an electric boiler or heat storage device to the wind plant to achieve"thermal electro-decoupling",the adjustment capability of the thermoelectric plant can be effectively improved.However,since the thermoelectric plant is still limited by the heating load,its scheduling capability in real-time scheduling still has great limitations.Through the thermal demand response,it is possible to significantly alleviate the restriction of the heating load on the electric output of the thermoelectric plant on the basis of the "thermal electro-decoupling",which has certain practical significance for improving the wind power consumption and primary energy utilization rate.Comprehensive research on the basis of "thermal electro-coupling" research by domestic and foreign scholars.Considering that the human body has a certain adaptability to temperature,the temperature changes within an appropriate range does not significantly affect the comfort of the human body.It is proposed to use the building heating load as a load that can be adjusted in real time.Established a two-stage optimal scheduling method for wind-boiler-thermal power plant with thermal load involved in regulation.Combining wind farms with electric boilers and thermal power plants into wind-boiler-thermal power plants.In the day before dispatching,through reasonable adjustment of the proportion of wind power heating,submit the best-time declaration output to the higher-level power grid.Regulate thermal load in real-time scheduling,enabling wind-boiler-thermal power plants to maximize revenue in the real-time auxiliary balancing market.The simulation results show that the thermal load regulation can significantly improve the regulation capacity of the thermal power plant,reduce the operating cost and carbon emission cost of the unit,and improve the net income of wind-boiler-heat plants while reducing the scheduling difficulties caused by wind power grid connection.For the problem of heating users in the above model,only passive participation in the heat load Scheduling process.The article introduces the thermal demand response and divides it into an incentive thermal demand response and a price type thermal demand response.The incentive-type thermal demand response is to make the user a virtual standby resource by signing a contract.The price-type thermal demand response is to guide the heat load user to adjust the heat habit through a variable hot price.Aiming at the abundance of wind power resources in northern China and the limited ability to absorb local wind power resources,the problem of a large number of abandoned winds in the area.By establishing a power generation transfer relationship between the wind farm and the thermal power plant.the goal of maximizing wind power consumption is to introduce price-type thermal demand response,incentive heat demand response and tripartite income function.Establish a thermal power plant that comprehensively considers the interests of wind farms,thermal power plants,and heat load users to participate in wind power consumption models.The results of the example show that the proposed method can reduce the wind and system power shortage caused by wind power output uncertainty and reduce coal consumption and carbon emissions while ensuring that wind farms,thermal power plants and heat load users benefit simultaneously.The research on the thermal demand response of the article involved in the wind power consumption strategy is applied in the actual operation,which can effectively improve the energy utilization rate,reduce the heating season smog,alleviate the greenhouse effect and the scheduling difficulties brought by the wind power grid connection,and have significant economic and social values.