电力系统自动化2025，Vol.49Issue(17)：112-121,10.DOI:10.7500/AEPS20241122004
基于频率-转速下垂控制的储能型双馈调相机惯量支撑方法
Inertia Support Method of Energy Storage Doubly-fed Condenser Based on Frequency-Rotor Speed Droop Control
摘要
Abstract
As a new type of condenser equipment,the energy storage doubly-fed condenser(ESDFC)not only has the strong voltage support ability of the synchronous condenser,but also can make full use of the rotor energy storage to improve the frequency response characteristics,thus providing support for the safe and stable operation of the power system with the integration of high proportion of renewable energy.First,aiming at the problem that the current active virtual inertia control methods have difficulties in balancing the steady-state constant-speed operation,transient inertia support and rotor speed self-recovery of the ESDFC,an inertia support method based on the frequency-rotor speed droop control is proposed to clarify the rotor speed regulation process during the frequency disturbance.Then,the equivalent inertia with different control parameters is evaluated by small signal modeling,and the frequency response model of the grid-connected system is constructed.The eigenvalue method is used to analyze the small signal stability,and the selection principle of the main control parameters is discussed.Finally,the effectiveness of the proposed inertia control strategy for the frequency support is verified by the grid-connected simulation case of the renewable energy station.关键词
储能/调相机/频率响应/转速/下垂控制/惯量/稳定性Key words
energy storage/condenser/frequency response/rotor speed/droop control/inertia/stability引用本文复制引用
赵书强,高铭阳,王慧,曲瀚辰,李善颖..基于频率-转速下垂控制的储能型双馈调相机惯量支撑方法[J].电力系统自动化,2025,49(17):112-121,10.基金项目
国家重点研发计划资助项目(2023YFB2406800). This work is supported by National Key R&D Program of China(No.2023YFB2406800). （2023YFB2406800）
