高压电器2025，Vol.61Issue(11)：1-10,21,11.DOI:10.13296/j.1001-1609.hva.2025.11.001
低电压穿越场景下的构网型储能变换器功率协同控制策略
Coordinated Power Control Strategy for Grid-forming Energy Storage Converters Under Low-voltage Ride-through Scenarios
摘要
Abstract
With the integration of high-proportion renewable energy,grid-forming energy storage converters face is-sues of transient instability and overcurrent during grid-side voltage faults,posing a severe threat to grid connection stability.To address this issue,in this paper the transient models under various operating conditions is set up firstly and the causes of transient power angle instability and overcurrent are analyzed.Then,on this basis,an active-reac-tive power coordinated control strategy specifically for low-voltage ride-through scenarios is proposed.The segmented adaptive control of the reference power for the grid-forming control strategy is achieved through online identification of voltage sags combined with output-side phasor relationships.Finally,the effectiveness of the proposed method in enhancement of transient stability,reactive power support and suppressment of overcurrent are verified by simulation and experiment.关键词
构网型储能变换器/电流饱和角/无功功率支撑/暂态稳定/抑制过电流Key words
grid-forming energy storage converter/current saturation angle/reactive power support/transient stability/overcurrent suppression引用本文复制引用
李建林,宋莹莹,游洪灏,吕洪章..低电压穿越场景下的构网型储能变换器功率协同控制策略[J].高压电器,2025,61(11):1-10,21,11.基金项目
青岛市重大科技专项项目(25-1-1-gjgg-4-gx) （25-1-1-gjgg-4-gx）
北京市自然科学基金资助项目(L242008). Project Supported by Qingdao Major Science and Technology Project(25-1-1-gjgg-4-gx),Beijing Natural Science Foundation(L242008). （L242008）
