Review of VSG Control Techniques for Grid-Forming Energy Storage Converters
With the wide application of renewable energy and power electronics,the stable operation of power grids faces new challenges and opportunities.Virtual synchronous generator(VSG)control technology has great potential in maintaining power grids stability and improving energy utilization efficiency.Firstly,the characteristics of the new power system are introduced,the VSG control strategy of the energy storage converter is discussed,and the advantages of the grid-forming energy storage converters and its application scenarios are analyzed.Then,the applications of VSG technology in the field of energy sources and storage devices for accessing renewable energy are sorted out in detail,and the research focuses in this field at home and abroad are summarized.Three key VSG control methods are discussed especially,which includes the VSG control considering the state of charge of the energy storage unit,the crossover control and capacity allocation based on hybrid energy storage,and the adaptive regulation of VSG parameters.The research status and development trend of VSG technology for grid-forming converters are comprehensively summarized,aiming to provide references and insights for subsequent research and engineering practice,while pointing out the problems of VSG technology for energy storage in terms of theory and application,and prospects are presented.
Energy storage converterGrid-forming controlRenewable energyNew power systemVirtual synchronous generator(VSG)
万方数据
维普
