电网技术2025，Vol.49Issue(10)：4044-4054,中插24-中插26,14.DOI:10.13335/j.1000-3673.pst.2025.0369
基于转速调节的储能型双馈调相机自适应虚拟惯量控制策略
Adaptive Virtual Inertia Control Strategy of Energy Storage Doubly-fed Condenser Based on Rotor Speed Regulation
摘要
Abstract
As a new type of power equipment,the energy storage doubly-fed condenser(ESDFC)has attracted wide attention due to its advantage of using rotor kinetic energy to achieve inertia support.However,the existing virtual inertia control methods have the problem that the rotor speed easily exceeds the limit,and the frequency stability and dynamic characteristics are challenging to balance.Therefore,this paper proposes an adaptive virtual inertia control strategy based on rotor speed regulation.Firstly,the topological structure and control principle of the energy storage type doubly-fed condenser are given,and the mechanism of inertia support is revealed from the angle of equivalent inertia constant.Then,considering the adjustment margin of the rotor speed and the disturbance inertia demand of the system,to realize the adaptive virtual inertia control,the function of rotor speed correction in relation to the frequency change rate and real-time rotor speed is constructed during the inertia support period.Meanwhile,the system frequency response model with ESDFC under the control strategy is established.The small disturbance stability of the system is analyzed through the root-locus method,and the selection principle of the control parameter is given.Finally,an example is given to verify the correctness of the theoretical analysis and the effectiveness of the proposed control strategy.The results show that the proposed control strategy can avoid rotor speed exceeding the limit and improve the frequency response characteristic of the system.关键词
储能型双馈调相机/虚拟惯量/转速调节/自适应控制Key words
energy storage type doubly-fed condenser/virtual inertia/rotor speed regulation/adaptive control分类
信息技术与安全科学引用本文复制引用
赵书强,曲瀚辰,王慧,高铭阳,严乙桉,高川..基于转速调节的储能型双馈调相机自适应虚拟惯量控制策略[J].电网技术,2025,49(10):4044-4054,中插24-中插26,14.基金项目
国家重点研发计划项目(2023YFB2406800).Project Supported by National Key Research and Development Program of China(2023YFB2406800). （2023YFB2406800）
