The Combined Economic Dispatch Of The Thermoelectric System Considering The Demand Response

Wind power is an important clean and renewable energy,and its development and utilization play an important role in reducing environmental pollution and relieving energy tension.Due to the limited capacity of the power system,the severe wind abandoning phenomenon is often produced,which causes huge energy waste.Especially in the "three north" area in our country,containing a high proportion of thermal power units in the power system,because the winter heating needs,thermal power units take on high heat load,the power units "limit to thermal electricity" characteristics,made the thermoelectric system load capacity decline further.This paper analyzes the impact of demand response on power system operation and wind power consumption.With minimal abandoned air volume as the goal,set up a joint economic scheduling model considering the response demand of thermoelectric system,coordinate the relationship between the electricity side and power generation side,in order to improve the thermoelectric system load performance and the economic operation level.Firstly,this paper analyzes the structure of the thermoelectric system and the characteristics of the thermoelectric unit and the reasons for the wind abandoning of the thermoelectric system.According to the specific reasons of wind abandoning in thermoelectric system,a combined scheduling strategy of thermoelectric system based on heat storage characteristics is proposed.The influence of this strategy on the wind power of the thermal power system is analyzed through the simulation.Secondly,this paper analyzes the response mechanism of demand response and the type of demand response,and builds a direct demand response model based on the incentive demand response analysis.And using the method of game theory,established a direct type of demand response in the ancillary services market participate in standby bidding transaction model,to carry out the demand response operators bidding transactions in the secondary market.Finally,according to the requirements of direct response operators backup trading results,optimize the backup of thermoelectric generator,established a joint economic scheduling model considering the response demand of thermoelectric system,an improved particle swarm algorithm is used to simulate the model,and the influence of the model on the power dissipation capacity and operation cost of the thermal power system is analyzed.