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Research On Control Strategy Of Distributed Wind Power And Energy Management Of Microgrid

Posted on:2019-08-06Degree:MasterType:Thesis
Country:ChinaCandidate:X H HeFull Text:PDF
GTID:2382330548470448Subject:Engineering
Abstract/Summary:PDF Full Text Request
With the development of society,human demand for electric power increases continuously.Energy crisis and environmental pollution have gradually become the focus of society today.The development of renewable energy such as wind energy is an important way to solve these problems,but large fluctuations,poor stability and complex control system limit its development.Research on energy management and control strategy is the focus of microgrid with renewable energy.It will be beneficial to the improvement of energy utilization and stability of the system.This paper takes 5KW vertical axis wind power generation system as the model,studies the microgrid system from control,monitoring and analysis three aspects:In the control,the overall coordination control strategy of the system is formulated based on the characteristics of microgrid.This system used the master-slave control strategy.As a slave power supply,the wind turbine adopts PQ control.This paper analysis the structure,model and control strategy of wind turbine,and build its simulation model by computer simulation software MATLAB/SIMULINK.An 'uncontrolled rectifier+boost+PWM inverter'control system is established.This system uses boost to exercise maximum powerpoint tracking,and PWM inverter to realize the decoupling control of active power and reactive power at the same time.In terms of monitoring,this paper uses the three-tier structure on microgrid monitoring system and designs its master system and slave system.It develops a human-computer interaction interface,and achieves the work of data collection,analysis,display and storage.The effectiveness of the system is proved through practical application.About the analysis,this paper focuses on the voltage fluctuation and flicker in power quality measurement system.Simulation study is carried out on the platform of MATLAB/SIMULINK.and analysis system is design by LabVIEW.Both the theoretical analysis and simulation results verified the correctness and effectiveness of the design.therefor,the system has certain theoretical and practical reference value.
Keywords/Search Tags:wind generation, micro-grid, control, monitoring
PDF Full Text Request
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