Research On Optimal Operation Of Regional Integrated Energy System Considering Integrated Demand Response

Energy is the foundation for human survival.In the face of serious problems such as the earth’s energy crisis and environmental degradation,the concept of the energy Internet came into being.The construction of a multi-energy coupling integrated energy system is the physical realization of the goals of the Energy Internet.The regional integrated energy system is the nerve ending of the energy Internet.It includes a variety of energy conversion equipment and energy storage equipment.The internal energy can be coupled and transformed with each other,and has good multi-energy complementary characteristics.The traditional power demand response achieved by shifting or reducing the load will affect the user’s energy comfort,and then affect the user’s enthusiasm for participating in the response.However,integrated energy users in a multi-energy complementary integrated energy system can meet energy demand by replacing energy,thus providing conditions for the implementation of integrated demand response.On the basis of reviewing domestic and foreign integrated energy system research,conduct in-depth research and analysis on demand response issues.However,the current research on comprehensive demand response is still in its infancy.Existing research on the optimal operation of regional integrated energy systems seldom considers the behaviors and strategies of multi-energy users participating in integrated demand response,especially the characterization of users’alternative energy use behaviors.Take the community integrated energy system as the research object,and divide the load of residents in the community into energy purchase load and direct energy load.Based on consumer psychology,the behavior of residential users’ alternative energy use is studied.Establish a comprehensive demand response model for residents.From the perspective of an integrated energy supplier,with the goal of maximizing operating income,considering equipment characteristic constraints,energy balance constraints,and energy price constraints,establish a community integrated energy system optimization operation and energy price decision-making model.The simulation of the calculation example shows that fully exploiting the multi-energy complementary characteristics of comprehensive energy users,considering the impact of energy prices on users’ alternative energy use,will improve the decision-making accuracy of comprehensive energy suppliers,increase suppliers’operating income,and optimize the operation of community integrated energy systems.And to promote the local consumption of renewable energy is of positive significance.With the development of a regional integrated energy system with complementary coupling of multiple energy sources,the construction of a regional multi-energy trading market,the realization of multiple energy on-site transactions,and the promotion of distributed renewable energy on-site consumption have become the development trend of the future integrated energy system.Construct a regional integrated energy market composed of independent integrated energy system operators,integrated energy suppliers and load aggregators,and propose a real-time energy price-based regional integrated energy system supply-demand interaction mechanism.Establish a multi-agent collaborative optimization model including operators,suppliers and load aggregators.Among them,the operator takes the best overall system benefit as the goal;the supplier takes the maximum profit as the goal;the load aggregator considers the comprehensive demand response that takes into account the user’s alternative energy use and the ambiguity of thermal comfort,with the goal of maximizing consumer surplus.Use the distributed improved particle swarm algorithm to solve the optimization model..The simulation shows that the independent system operator,as the coordinator and manager on both sides of the supply and demand,can simultaneously incrcase the supply and demand while protecting the privacy of both the supply and the demand and the fairness of the market.Benefits on both sides;load aggregators consider users’ alternative energy and thermal load flexibility characteristics,which can fully tap the dispatching potential of electric and heating loads and effectively improve the utilization of renewable energy in the system.It is of great value to incorporate integrated demand response into the optimal dispatch of the integrated energy system.Mining multiple load demand response capabilities in the regional integrated energy system can effectively improve energy utilization efficiency,achieve energy synergy and complementarity,and promote the local consumption of renewable energy.