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Research On Economic Optimization Of Microgrid With Electric Vehicle

Posted on:2018-12-11Degree:MasterType:Thesis
Country:ChinaCandidate:Z R ChengFull Text:PDF
GTID:2322330533958977Subject:Electrical engineering
Abstract/Summary:PDF Full Text Request
Microgrid economic dispatch is the key to optimize the operation of the system.The distributed geneartion in microgrid,such as wind and light,has the characteristics of intermittence and randomness.In recent years,under the pressure of energy and environment,EV(Electric Vehicle)has attracted a lot of attention of governments,energy companies and automobile manufacturers.The mobile vehicle energy storage devices like Electric vehicles access “micro grid” by the way of Interactive model with "Vehicle to Grid".It has an effect of peaking valley filling,stabilizing the role of renewable energy intermittent.It is very important and necessary to study the optimal operation of microgrid with electric vehicles.The main purpose of this paper is to explore the impact of micro grid access to micro grid economy.This paper first introduces the current research status of microgrid and the current situation of V2 G technology,analyzes the electric vehicle access to microgrid opportunities and challenges,the urgency of the electric vehicle access to microgrid operation and its advantages.Secondly,according to the emission and operating characteristics of photovoltaic,wind machine,CCHP system,fuel cells,batteries and electric vehicles,the cost of power generation,emissions cost and maintenance cost model has been established.Then the paper introduces the concept of range anxiety and for cars' owners range anxiety problem,three kinds of electric vehicle charging and discharging strategies has been proposed according to their anxiety range degree,subsequently according to the target of the lowest comprehensive cost,the economic optimization model of establish microgrid with electric vehicles and islanding operation has been established.Finally,the objective function is solved by the improved particle swarm optimization algorithm with variable inertia weight.The output of the power and electricity trading of the microgrid with electric vehicle in different typical days and in different range anxiety has been given.The optimal output power of microgrid under different typical day under the islanding mode has been presented.The economy of electric vehicle access microgrid has been analyzed.The rationality and validity of the model are proved.The rationality and validity of the mode is verified.
Keywords/Search Tags:microgrid, electric vehicle, economic optimization, the improved particle swarm optimization, range anxiety
PDF Full Text Request
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