A Load-Source Interactive Peak Shaving Control Method Based On Multi-Form Demand Side Load Response

After wind power is connected to the power grid on a large scale,wind power consumption is hindered due to insufficient peaking capacity of the system.It is urgent to explore new peaking resources to solve or alleviate the problem of blocked wind power transmission.In this paper,the multi-form demand side load with regulation characteristics is proposed to participate in power grid regulation.The load-source interactive peak-shaping control method based on multi-form demand side load response is used to carry out load-source interactive peak-shaping control.which is of great significance to improve system peak-shaving capability and reduce system operation cost.Firstly,based on the characteristics of the anti-peak regulation of wind power cluster's active output,this paper studies and analyzes the impact of wind power cluster accessing the grid on the down-regulation of the system,and the feasibility of multi-form demand side load to participate in down-regulation,and discusses the multi-form demand side load participation adjustment which plays an important role in improving system peaking capacity.Then,the multi-form demand side load regulation characteristics are studied,and corresponding response models are established,including multi-form demand side loads such as electrolytic aluminum,silicon carbide,ferroalloy,electric vehicle,and thermal storage electric boiler,and electric vehicle load polymerization model and thermal storage electric boiler aggregation model are established.On this basis,the multi-form demand side load is divided into discrete response load,time-shiftable response load and continuous response load according to the adjustment characteristics.The response models of these three types of regulation characteristic loads are established respectively.Subsequently,based on the multi-form demand side load regulation characteristics and response model,the paper proposes a day-ahead and within-day load-source interactive peak-sharing mode based on multi-form demand side load;Based on the day-ahead level wind power forecast,the model of the day-ahead load-source interactive peak-sharing optimization with the goal of maximum multi-form demand side load adjustable power and minimum grid operation cost is established.Based on the within-day level wind power forecast,a within-day load-source interactive rolling correction peak-sharing optimization model with the minimum deviation between the within-day level wind power forecast value and the day-ahead wind power output plan value is established.The improved multi-objective genetic algorithm NSGA-? is used to solve the model.The optimization model and the solution method form a load-source interactive peak-shaping control method based on multi-form demand side load response.Finally,the Gansu power grid operation data is used to simulate and verify the feasibility and effectiveness of the load-source interactive peak shaving control method based on multi-form demand side load response.