适用于功率型储能的虚拟惯性控制策略
The Virtual Inertial Control Strategy Suitable for Power-type Energy Storage
张炜 1师长立 2龚利武 1霍群海2
作者信息
- 1. 国网浙江省电力有限公司平湖市供电公司,浙江 平湖 314200
- 2. 中国科学院电工研究所,北京 100190
- 折叠
摘要
本文对现有虚拟惯性控制策略进行了深入分析,现有策略惯性支撑能力与电压波动率大小以及符号密切相关,当电压波动与电压变化率符号不一致时,惯性支撑能力不足.针对现有控制策略存在的问题,本文借鉴牛顿力学定律思想,提出一种适用于功率型储能的新型虚拟惯性控制策略.该策略惯性支撑能力与电压波动幅值的平方成正比,不受电压变化率的影响,可以更好地为系统提供惯性支撑.然后,本文对虚拟惯性控制系数对新型控制策略的影响及稳定性进行深入分析,为控制参数的选取提供了依据.最后,搭建相关实验平台,开展相关实验,实验结果验证了所提虚拟惯性控制策略的有效性.
Abstract
The existing virtual inertia control strategies are analysed in depth.The inertia support capability of the ex-isting strategies is closely related to the magnitude of the voltage fluctuation rate as well as the sign,and the inertia support capability is insufficient when the voltage fluctuation is inconsistent with the sign of the voltage rate of change.Aiming at the problems of the existing control strategies,the idea of Newton's law is used to propose a new virtual inertia control strategy suitable for power energy storage.The inertia support capacity of this strategy is propor-tional to the square of the voltage fluctuation amplitude and is not affected by the voltage change rate.It can better provide inertia support for the system.Meanwhile,an in-depth analysis of the influence and stability of virtual inertia control coefficients on the new control strategy is provided,which provides a basis for the selection of key control pa-rameters.Finally,the relevant experimental platform is built and relevant experiments are carried out,and the experi-mental results verify the effectiveness of the proposed virtual inertia control strategy.
关键词
虚拟惯性控制/电压变化率/电压波动/功率型储能Key words
virtual inertia control/voltage fluctuation rate/voltage fluctuation/power-type energy storage引用本文复制引用
出版年
2025
NETL
NSTL
万方数据