Coordinated Control Of Electric Vehiclesand Wind Power Generation In Smartdistribution Network

That the uncertainty habits of the user make the electric vehicle as the charging loaduncertainty in time and space makes the operation of the power network complicated.When wind power generation access to distribution network,it can reduce the consumptionof fossil energy.However,because of the fluctuation and uncertainty of wind speed,windpower is not controllable.And the uncertainty of wind power will threaten the security andeconomy of the power grid.From the perspective of the distribution system,although theaccess of electric vehicles and wind power can make the grid tends to be cleaner,moreintelligent,it also has an adverse effect on the power distribution system,such as networkloss,voltage fluctuations and other bad effects.Therefore,how to coordinate and controlthe access of electric vehicles and wind power generation in the distribution network toreduce the adverse impact on the system is a problem to be solved,which has sometheoretical and practical significance.In this paper,firstly,the random charging load of electric vehicles and the output windpower were modeled,and the system model was also introduced.For the electric vehiclemodeling part,Monte Carlo method was used for modeling based on users’ behavior ofprobability;for the modeling of wind power generation part,the randomness of wind speedwas described by a three-parameter Weibull distribution,taking into account the influenceof turbulence on the wind speed,which made the simulation results more in line with theactual situation.The IEEE 33-bus system was simulated for analyzing,and the basic load ofthe system and the access node of wind power were processed.Secondly,the effect of thedistribution network was studied in three cases.For example,the random charging ofelectric vehicles in different penetrations,the wind power generation under differentinstalled capacity and the two access to the network in three cases.The simulation resultsshow that the random charging of electric vehicles and wind power grid would have anegative impact on the power distribution system.In the end,it was assumed that thecharging power of electric vehicle was variable.The variable quantities which were thevariable charging power were 48 periods divided by 24 hours.NSGA-II algorithm was usedto control the charging of electric vehicles.Based on electric vehicle charging load and wind power output modeling,the impactto the distribution network was analyzed,and some reference for the further research of thenew energy of the mobile storage unit and the wind power were put forward.