重庆理工大学学报（自然科学版）2025，Vol.39Issue(3)：202-211,10.DOI:10.3969/j.issn.1674-8425(z).2025.02.025
改进综合惯性控制的风储系统一次调频策略
Improved primary frequency regulation strategy for wind energy storage system with synthetic inertia control
摘要
Abstract
To improve the frequency stability of the wind energy storage system in the power system primary frequency control,the flexible control of the energy storage system should be further explored and the frequency regulation ability is widely studied.In this paper,we explore the energy storage side converter and its control capability,analyze the relationship between the DC current and frequency of the energy storage side converter,and propose an improved primary frequency regulation strategy for wind energy storage systems synthetic inertia control.First,the energy storage is simulated to the inertia of synchronous machine.The energy storage side converter responds to the disturbance of the grid frequency through the change of DC current and provides inertia support to the power system to regulate the frequency.Second,inertial elements are introduced in the inertial response module to enhance system damping.Then,a small signal model of the new control is built to analyze its stability.Finally,the system simulation model is built on Matlab/Simulink.The wind storage system is set to be grid-connected with the infinity system,connecting the IEEE9 node system working condition to verify and evaluate the designed control strategy.Our simulation results show the energy storage side converter responds to the grid frequency change by DC current under the designed new control,effectively mitigating the grid frequency dip and improving the system stability.关键词
一次调频/综合惯性控制/风储系统/储能侧变换器/系统惯量Key words
primary frequency regulation/synthetic inertia control/wind energy storage system/energy storage side converter/system inertia分类
动力与电气工程引用本文复制引用
庄凯,顾亦超,刘承鑫,谢建峰,井凯凯,王思凯,章治国..改进综合惯性控制的风储系统一次调频策略[J].重庆理工大学学报（自然科学版）,2025,39(3):202-211,10.基金项目
重庆市教委科学技术研究项目(KJQN201901543) （KJQN201901543）
