太赫兹科学与电子信息学报2025，Vol.23Issue(7)：671-676,6.DOI:10.11805/TKYDA2024557
有源配电网功率控制稳定性时延裕度计算
Calculation of time delay margin for power control stability in active distribution networks
王忠钰 1尹喜阳 1冯瑛敏 2闫龙 3张倩文 1王林 1冯春盛1
作者信息
- 1. 国网天津市电力公司信息通信公司,天津 300450
- 2. 国网天津市电力公司经济技术研究院,天津 300450
- 3. 国网天津市电力公司滨海供电分公司,天津 300450
- 折叠
摘要
Abstract
With the increasing penetration rate of distributed power generation represented by Photovoltaic(PV)power generation,active distribution networks are facing issues such as reverse power flow and voltage violations.Due to the fact that the communication between PV inverter terminals and the central controller is an all-time,all-domain heterogeneous network,communication delays are inevitable,which can lead to degraded control performance and even system instability.To address these challenges,a control strategy for the active power of PV inverters is designed to adjust the power distribution in the distribution network and regulate node voltages.A linearized state-space model that accounts for communication delays is proposed,and a stability criterion depending on communication delays is obtained by using the Linear Matrix Inequality(LMI)method.This approach determines the delay margin to ensure the stable operation of the system.Simulation results demonstrate that the constructed state-space model and the calculated delay margin can effectively enhance the robustness of the system and are applicable to multiple PV systems in active distribution networks.关键词
分布式光伏发电/全时全域异构通信网/线性矩阵不等式(LMI)/通信时延Key words
distributed photovoltaic power generation/all-time and all-area heterogeneous communication network/Linear Matrix Inequality(LMI)/communication delay分类
信息技术与安全科学引用本文复制引用
王忠钰,尹喜阳,冯瑛敏,闫龙,张倩文,王林,冯春盛..有源配电网功率控制稳定性时延裕度计算[J].太赫兹科学与电子信息学报,2025,23(7):671-676,6.
