Several Research And Energy Optimization Scheduling Of Distributed New Energy Power Generation

Distributed new energy power generation technology got rapid development in recent years,due to the energy crisis,environmental degradation and its inherent advantages.But the power of the photovoltaic and wind power is intermittent,changing as temperature,humidity,day and night,season,and the power is difficult to predict and schedule that severely limit the scale of the development of new energy power generation.Based on IEEE30 power supply network to set up a simulation of large-scale grid-connected new energy infrastructure,and design various power generation simulation curve and load simulation curve.The original-dual interior point algorithm as extremum problem solving tool,based on open source code MATPOWER developed a large-scale new energy grid-connected kernel program.The main purpose of new energy power generation system is to supply the user clean energy,reduce fuel consumption of fossil fuel power plants.But random interconnection of new energy power generation is not desirable,this way not only can't exert its advantages,only worsened the system state.This paper analyzes the new energy grid location selection problems and the loss of system network,the impact of voltage stability and reactive power support,discussing such as "positive peak effect","negative peak effect" and "overload peak effect" etc.Because the new energy power generation has unstable features,then the energy storage device as a buffer device in the application of the system becomes very important.Energy storage device in the system can be play a role of peak clipping and valley filling,its capacity directly affects the size of the access of new energy in the system.But due to the price of energy storage device,the capacity calculate of energy storage device is a problem worthy of researching.This paper puts forward a new type of energy management solutions and energy storage capacity calculate referencing the rollback technology in the field of computer database technology.Accurate prediction of new energy power generation power and power load is a tough job,leading to add much design margin during designing phase.This paper detailed discusses the effects to power system of new generation under different combinations of power prediction error and load prediction error,and analyzes sensitivity problem about storage capacity error.At the same time,in order to make the new generation of control is more intuitive,the paper puts forward the concept of new energy power generation dynamic security assessment(DSA).