构网型储能支撑新型电力系统建设的规划应用及挑战OA

[Objective]Under the"Carbon peaking and carbon neutrality"goals,as a critical technology for adapting power systems to high proportions of renewable energy,the application advantages of grid-forming energy storage(GFMES)have not been fully exploited.Therefore,there is an urgent need to clarify its active support mechanisms and planning methods across multiple scenarios in the new power system.[Methods]This paper summarizes the voltage support,frequency support,and inertia support mechanisms of GFMES from the perspective of grid-forming control.Planning methods are then reviewed for normal operating conditions,small-disturbance conditions,and large-disturbance conditions.Combined with engineering demonstrations,the planning roles,key requirements,and multi-condition coordination issues of GFMES are further analyzed in renewable energy export systems,HVDC receiving-end nearby grids,and microgrids.[Results]Existing studies have established condition-oriented planning frameworks:normal-operation planning mainly emphasizes techno-economic performance;small-disturbance planning focuses on system strength and frequency stability;large-disturbance planning highlights whole-process coordination of prevention,fault ride-through,and post-fault recovery.Meanwhile,the functional role,dominant constraints,and planning requirements of GFMES differ significantly across application scenarios.[Conclusions]GFMES planning exhibits strong scenario dependence and multi-condition coupling.System strength,voltage/frequency security margins,and fault recovery requirements are the key constraints governing siting and sizing.Future work should develop coordinated planning methods that jointly consider technical constraints and economic performance.