Research On Operation And Control Of Microgrid With Different Types Of Distributed Sources

Microgrid has advanced flexible operation control,and the integration of distributed high proportion of clean energy is an important part of the future smart grid distribution network.Compared with the traditional distribution network,a large number of micro-grid distributed power not only to change the direction of the trend,and new energy wind power,solar photovoltaic power generation randomness will give micro-grid operation have a profound impact.In a variety of distributed power access conditions,the use of advanced and reliable operation control method to achieve security and stability of the microgrid is a very important and urgent problem facing many of the study based on the subject.Operational characteristics of micro-grid paper studies with a variety of distributed power,focusing on research studied frequencies island microgrid control mode switching control strategy and microgrid two operating modes.Unlike simple distributed power generation systems,microgrid usually have two modes of operation: from the large grid connected and islanding mode of operation with the main grid connection and network operation mode.By studying the method of controlling the inverter to complete mathematical modeling of different control strategies by different micro power supply analysis,a mathematical model of different micro-power and its own control strategy,based on different micro power FM Properties interaction,obtained under different operating modes microgrid be no difference between the FM control strategy,and no difference in frequency modulation process,the power distribution of micro power FM to participate in the analysis made.This use of inverter typ emicro-grid-based distributed power control of an important node in power quality management existing distributed microgrid power without increasing power quality management specialized equipment,but also the flexibility to adjust the level of compensation,according to the actual needs of a variety of power quality for users to choose.