高压电器2025，Vol.61Issue(11)：22-33,44,13.DOI:10.13296/j.1001-1609.hva.2025.11.003
构网型与跟网型储能在弱电网中的暂态响应特性及并网性能研究
Study on Transient Response Characteristics and Grid-connection Performance of Grid-forming and Grid-following Energy Storage in Weak Grids
摘要
Abstract
In recent years,the access of such a large number of renewable energy sources as photovoltaic and wind power to the power grid,although providing clean energy and reducing carbon emissions,introduces problems of un-stable voltage and frequency to the power grid.The energy storage system is used to address the contradictions be-tween power demand and supply in multiple dimensions of time and space,and plays a crucial role in peak shaving and valley filling as well as energy balance.At present,most energy storage converters adopt the grid-following con-trol mode.Due to the delay of the phase-locked loop and the current limitation of the hardware equipment,such prob-lems as slow frequency dynamic process response and weak voltage support capacity are existed.The grid-forming control,due to the introduction of a control loop for the inertia response of virtual synchronous machines,has gradu-ally become into the main control strategy for solving system frequency problems.In this paper,based on the current research status of grid following and grid formation,the characteristics of two control strategies are analyzed,the voltage and frequency disturbance tests on weak grid energy storage systems in the near DC zone and areas with a high proportion of new energy are performed respectively.The influence of key parameters of grid-forming energy stor-age systems on grid connection performance is analyzed and the transient response characteristics and grid connec-tion performance of grid-forming and grid-following energy storage systems in weak grids are comparatively analyzed.关键词
跟网型控制/构网型控制/储能系统/暂态响应/并网性能Key words
grid-following control/grid-forming control/energy storage system/transient response/grid connection performance引用本文复制引用
赵清华,李明,李晓龙,亚夏尔·吐尔洪,李义岩,兰承龙,郑云平,宗思佳..构网型与跟网型储能在弱电网中的暂态响应特性及并网性能研究[J].高压电器,2025,61(11):22-33,44,13.基金项目
国网总部科技项项目(5419-202336790A-3-8-KJ). Project Supported by Science and Technology Project of the State Grid Headquarters(5419-202336790A-3-8-KJ). （5419-202336790A-3-8-KJ）
