摘要
为充分发挥各类分布式资源的特点和配电网的可调节能力,以提供性能更优的动态辅助服务,文中提出一种面向配电网格虚拟电厂(meshed distribution virtual power plant,MVPP)的动态频率聚合控制方法。首先,明确MVPP的整体架构,建立针对一次调频场景、能够聚合其内部各类分布式资源动态特性的频率控制模型。然后,采用基于自适应动态频率匹配的控制方法解决动态频率聚合模型控制设计问题,通过在线自适应方法分解期望特性,并利用H∞最优鲁棒控制方法为各设备设计本地反馈控制器,精确动态匹配分解一次调频的期望特性。仿真结果验证了所提控制方法的有效性,该方法能在负载扰动、新能源出力波动等场景下,通过各资源互补显著改善系统一次调频特性。所提策略可为空间分布的聚合单元参与动态调频辅助服务提供新的解决思路。
To fully leverage the characteristics of various distributed resources and the controllability of distribution grids fordelivering higher-performance and dynamic ancillary services,a dynamic frequency aggregation control method for mesheddistribution virtual power plants(MVPP)is proposed.Firstly,the overall architecture of MVPP is defined,and a frequencycontrol model capable of aggregating the dynamic characteristics of its internal distributed resources for primary frequencyregulation scenarios is established.Subsequently,an adaptive dynamic frequency matching control approach is employed toaddress the control design challenge of the dynamic frequency aggregation model.The desired characteristics are decomposedthrough online adaptive approach,and a local feedback controller is designed for each device using an H∞optimal robustcontrol method to precisely and dynamically match the decomposed desired characteristics for primary frequency regulation.The simulation results verify the effectiveness of the proposed control method,demonstrating that it can significantly improvethe primary frequency regulation characteristics of the system through the complementation of various resources underscenarios such as load disturbance and new energy output fluctuations.The proposed strategy offers a new solution for spatiallydistributed aggregation units to participate in dynamic frequency regulation auxiliary services.
作者
肖小龙
史明明
吴凡
陆晓星
郭宁
郭佳豪
XIAO Xiaolong;SHI Mingming;WU Fan;LU Xiaoxing;GUO Ning;GUO Jiahao(Jiangsu Electric Power Test Research Institute Co.,Ltd.,Nanjing 211103,China;State Grid Jiangsu Electric Power Co.,Ltd.Research Institute,Nanjing 211103,China)
出处
《电力工程技术》
北大核心
2026年第2期80-92,共13页
Electric Power Engineering Technology
基金
国家自然科学基金资助项目(U2166202)。
关键词
虚拟电厂
配电网
一次调频
鲁棒控制
分布式电源
自适应控制
virtual power plant
distribution network
primary frequency control
robust control
distributed generator
adaptivecontrol
