Research On Smart Grid Scheduling Strategy Based On Distributed Coordinated Control

Along with the increasingly serious environment problem,energy problem increasingly nervous and increasing electricity demand,the smart grid has become the development trend of the future power grid,including smart grid scheduling policy is one of the focus in the study of the smart grid.The smart grid is the unique structure characteristics and composition,so widely applied to traditional power grid centralized scheduling method is difficult to achieve effective scheduling of the smart grid.Due to the composition of the smart grid unit,such as generator,load and energy storage unit can be thought of as a single agent in the agent system.Therefore,the smart grid system can be regarded as a multi-agent system,so the distributed coordinated control of multi-agent system is considered to be applied to the smart grid scheduling.(1)Economic dispatch problem of a smart grid is an important component part of smart grid technology,which can be described as in meet the effective output power generators,and the system of supply and demand balance constraints,on the basis of reasonable distribution of active power output of each generator,minimizing the cost of power generation,namely the realization of the smart grid resource allocation optimization of the system.Based on the relevant theory of graph theory,the smart grid topology relationship by the edge of node and connection form graphical representation,and using the idea of exact penalty function is the problem.Therefore,a distributed coordinated control is designed to realize the economic dispatching of smart grid.(2)The rapid development of renewable energy,making renewable energy power generation power output power fluctuation caused by possible.In order to reduce the renewable energy power generation on power system stability,adapt to the uncertainty of renewable energy power generation,enhanced control method in the practical application of universality,in view of the economic dispatch problem in micro grid,within a limited time distributed coordinated control is proposed.On the premise of meet the supply and demand balance,the scheme ensures that the marginal cost of each generator in the limited time to converge to the same value.Moreover,the effective output power of the generator can reach the optimal value within a limited time,so as to minimize the system cost function.This paper realizes the verification of each distributed coordinated control through MATLAB simulation analysis,and verifies that the distributed coordinated control can effectively solve the economic scheduling problem through simulation and analysis.