电力系统自动化2025，Vol.49Issue(12)：1-10,10.DOI:10.7500/AEPS20240110007
新型电力系统柔性构网技术及其应用
Flexible Grid-forming Technology and Its Application in New Power System
摘要
Abstract
With the large-scale integration of renewable energy into the grid,the coupling between the electromagnetic and electromechanical characteristics of the power system has become tighter,and the dynamic behavior has become more complex,facing many challenges such as insufficient frequency and voltage support capabilities and increased instability risks.However,the existing methods for power grid planning and operation control design still inherit traditional power system methods,making it difficult to fully leverage the advantages of fast and flexible regulation of power electronic equipment such as renewable energy,energy storage,and DC transmission.The paper proposes a new power system construction technology that utilizes power electronic equipment to form a flexible and controllable flexible grid(referred to as flexible grid-forming)."Flexible interconnection"is used to avoid the problem of cascading transmission of AC power grid faults and spread of fault impact,and maintain the ability of flexible mutual assistance between regions.Through"active supporting",the voltage/frequency support capability of critical nodes is enhanced and the stability of the power grid is improved.The paper elaborates on the challenges faced by the development of new power systems,proposes the concept and connotation of flexible grid-forming,and studies the basic ideas and future development directions of flexible grid-forming.Finally,the application of flexible grid-forming technology in the actual projects of China Southern Power Grid is introduced.关键词
构网/柔性互联/新能源/主动支撑/新型电力系统Key words
grid-forming/flexible interconnection/renewable energy/active support/new power system引用本文复制引用
郑外生,饶宏..新型电力系统柔性构网技术及其应用[J].电力系统自动化,2025,49(12):1-10,10.基金项目
国家自然科学基金联合基金资助项目(U22B6007) （U22B6007）
中国南方电网有限责任公司科技项目(ZBKJXM20232002). This work is supported by National Natural Science Foundation of China(No.U22B6007)and China Southern Power Grid Company Limited(No.ZBKJXM20232002). （ZBKJXM20232002）
