电网技术2025，Vol.49Issue(9)：3566-3576,中插6-中插7,13.DOI:10.13335/j.1000-3673.pst.2024.0948
分布式光伏电源分散式自适应主动频率支撑控制
Decentralized Adaptive Frequency Support Control of Distributed PV Sources
摘要
Abstract
With the explosive growth of distributed photovoltaic(PV)penetration,the traditional passive access method mainly based on maximum power point tracking(MPPT)increasingly threatens the frequency security and stability of the system.The demand for active support for system frequency by distributed PV sources becomes increasingly urgent.The existing active support strategies require online estimation of their maximum available power,which is a large computation burden and makes it difficult to adapt to rapid changes in environmental conditions.Because of this,a quantitative characterization parameter is proposed,which represents the real-time output power of the PV system as a ratio to the current maximum available power,thus avoiding the online estimation of the maximum available power.Based on this PV power characterization parameter,a decentralized adaptive active frequency support control strategy is designed,which allows the parallel distributed PV sources to adjust their power characterization parameters according to frequency changes adaptively and,thus,proportionally regulate their reserve power to respond to system disturbances actively,suppress frequency fluctuations,while improving the system efficiency,ensuring fair power generation,and reducing unreasonable waste of solar resources.Simulation results show that the proposed method can improve the system's transient frequency response characteristics.关键词
分布式光伏/频率支撑/分散式控制Key words
distributed PV/frequency support/decentralized control分类
信息技术与安全科学引用本文复制引用
杨鹏程,冯启帆,韦巍,蔡宏达,夏杨红,唐雅洁..分布式光伏电源分散式自适应主动频率支撑控制[J].电网技术,2025,49(9):3566-3576,中插6-中插7,13.基金项目
国网浙江省电力有限公司科技项目:"高渗透率分布式光伏并网主动支撑及运行控制技术研究与应用"(5211DS230003).Project Supported by Science and Technology Project of State Grid Zhejiang Electric Co.Ltd.:"Research and Application of Active Support and Operational Control Technologies for High-penetration Distributed Photovoltaic Grid"(5211DS230003). （5211DS230003）
