Multi-Energy Complementary Partition Coordination Optimal Scheduling Method For New Energy Consumption

As the proportion of new energy sources connected to the grid increases,the demand for regulation of the system by new energy sources increases,while the proportion of conventional power sources decreases,reducing the regulation capacity of the system.At the same time,the increasing coupling between multiple types of energy and electricity,represented by cold and heat,has created a new situation of multi-energy development,which brings new opportunities for the coordinated and optimal consumption of new energy using multi-energy complementarity.Although multi-energy resources have good regulating ability,they are significantly different from new energy resources in terms of spatial and temporal regulating characteristics,which makes it more difficult for multi-energy complementarity to consume new energy,mainly in the following aspects:1)In terms of time characteristics,the regulation characteristics of multi-energy resources vary at different time scales.How to optimise the matching of multi-energy resources with different regulation characteristics in response to the fluctuating characteristics of new energy at different time scales has become the core and difficult point in fully exploiting the multi-energy regulation potential and promoting the grid-connected consumption of a high proportion of new energy.2)In terms of spatial distribution characteristics,the uneven spatial distribution of new energy resources and regulating resources makes it more difficult to coordinate and optimise multi-energy dispatch in different spatial scales.Therefore,there is an urgent need to research new dispatching methods and theories based on the spatial and temporal differentiated operation characteristics of multi-energy.To this end,this paper investigates the optimal scheduling method for the coordinated consumption of new energy in multi-energy complementary zones,in order to solve the problem of optimally matching the operational characteristics of new energy consumption with the multi-energy regulation capacity at the time/space scale,thereby promoting the further consumption of a high proportion of new energy.The main research elements of this paper are as follows:First,the multi-energy regulation and coupling characteristics are analysed.The multi-energy is divided into energy and energy charge,i.e.energy with source characteristics only is named energy,and energy with both charge and source characteristics through coupling equipment is named energy charge.Based on this,the coupling characteristics and regulation characteristics of multi-energy and energy charge types are analysed and their regulation models are established.Secondly,the study illustrates the mechanism of multi-energy complementary coordinated dispatch and consumption of new energy.Considering the differences in the temporal regulation characteristics of multiple energy sources,the impact of the temporal characteristics of multiple energy sources on the consumption of new energy is analysed,and based on this,the mechanism of coordinated dispatch and consumption of new energy by multiple energy sources under multiple time scales is elaborated.On the basis of this,the mechanism of coordinated scheduling of new energy consumption within/between multi-energy complementary zones is explainedThe study then proposes an optimisation method for the coordinated dispatch of multi-energy complementarities in the region based on the consumption of new energy.On the basis of this,a two-stage multi-energy coordinated scheduling model is developed,which prioritises the coordination of electrical energy complementarity,followed by the coordination of heat and cold complementarity,so that the multienergy regulation characteristics can be effectively utilised to maximise the consumption of new energy.On the basis of solving the two models,a multi-energy complementary coordination and optimisation dispatching method based on the consumption of new energy is proposed;the proposed method is verified through calculation examples to fully exploit the multi-energy regulation potential in the region and improve the effectiveness of new energy consumption.Once again,the proposed method of coordinated and optimal inter-district dispatch takes into account the adaptive elastic control of inter-district contact line limits.Considering the unbalanced spatial distribution of new energy and multienergy resources,on the basis of the multi-energy complementarity of new energy consumption in the region,the inter-district complementary coordinated optimal dispatching model is proposed,and an inter-district complementary coordinated optimal dispatching model is established to further consume new energy;for the impact of inter-district contact line power limits on inter-district consumption of new energy,the inter-district contact line adaptive elastic control is proposed for scenarios where inter-district consumption of new energy is hindered The method of adaptive elastic control of inter-district contact line is proposed to improve the power limit of inter-district contact line to solve the problem of blocked inter-district consumption of new energy;the effectiveness of the proposed method is verified through the analysis of calculation cases.Finally,an adaptive market trading method is proposed to promote the consumption of new energy.In order to promote the implementation of the new energy consumption dispatching method,the feasibility of using market trading means to provide economic incentives to multiple stakeholders of new energy consumption is elaborated;based on this,the adaptive market trading method is proposed,i.e.,before the day,a multi-subject bidding game model is established for intra-day surplus new energy using Nash theory to form a win-win market trading bidding table for each stakeholder;during the day,adaptive The proposed method is validated through case studies.