电力建设2023，Vol.44Issue(12)：125-135,11.DOI:10.12204/j.issn.1000-7229.2023.12.011
兼顾系统频率稳定性和小干扰稳定性的构网型储能参数优化方法
Parameter Optimization Method of Grid-Forming Energy Storage Considering System Frequency Stability and Small Signal Stability
摘要
Abstract
To deal with the problem of insufficient inertia of new energy,the control technology of virtual synchronous generators(VSG)in grid-forming energy storage has been continuously developed,which provides inertia support for the system while causing power oscillation and reducing the power angle stability of the system.To solve this problem,the mechanism of the influence of the virtual inertia and virtual damping parameters of the virtual synchronous generator on the system stability is explained,and a parameter optimization strategy is proposed for the virtual synchronous generator.This strategy simultaneously considers the frequency stability and small-signal stability of the system to establish an objective function optimization model.The objective function minimizes the maximum frequency deviation and the maximum sum of the damping ratio of the system oscillation mode.The stability interval of each control parameter is considered the constraint condition.The strategy was solved using a fast non-dominated sequencing genetic algorithm(NSGA-Ⅱ)with an elite strategy.Finally,the effectiveness of this method is verified through a simulation.关键词
构网型储能/虚拟同步机(VSG)/惯量/阻尼Key words
grid-forming energy storage/virtual synchronous generator(VSG)/inertia/damping分类
信息技术与安全科学引用本文复制引用
李立,王佳明,张青蕾,李骏,王彤..兼顾系统频率稳定性和小干扰稳定性的构网型储能参数优化方法[J].电力建设,2023,44(12):125-135,11.基金项目
This work is supported by National Natural Science Foundation of China(No.52277096).国家自然科学基金项目(52277096) （No.52277096）
国网陕西省电力有限公司科技项目(5226SX21N02M) （5226SX21N02M）
