光伏系统中虚拟惯性与阻尼增益协调控制策略
Virtual inertia and damping gain coordinated control strategy in photovoltaic systems
何润泉 1陈槾露 1陈俊安 1张峻诚 2赵军 2潘凯岩3
作者信息
- 1. 广东电网有限责任公司茂名供电局,广东茂名 525000
- 2. 东方电子股份有限公司,山东烟台 264000
- 3. 东方电子股份有限公司,山东烟台 264000;哈尔滨工程大学智能科学与工程学院,黑龙江哈尔滨 150000
- 折叠
摘要
随着光伏发电等新能源的快速渗透,电力系统对其参与一次调频提出了更高的要求.为了实现更全面的频率调节,文章根据相关电网规范,确定了评估频率质量的关键指标,借助同步发电机转子运动方程,分析了惯性常数和阻尼增益对频率质量的影响.基于这些分析结果,设计了一种虚拟惯性和频率阻尼的协调控制策略,旨在光伏系统具备一定功率储备下实现最佳频率支持.最后,通过仿真验证了所提出的控制策略在光伏系统参与一次调频的优势和有效性.通过虚拟惯性控制和频率阻尼控制之间相互协调,光伏系统能够以高效的方式支持电网的频率稳定性.
Abstract
With the rapid penetration of new energy sources such as photovoltaic power generation,the power system has put forward higher requirements for its participation in primary frequency regulation,requiring it to support the power grid in a more flexible way.In order to achieve more comprehensive frequency regulation,the key indicators for evaluating frequency quality are first determined according to the relevant grid specifications.Then,with the help of the motion equation of synchronous generator rotor,the effects of the constant of inertia and damping gain on the frequency quality are analyzed.Based on these research results,a coordinated control strategy of virtual inertia and frequency damping is designed,aiming to achieve the optimal frequency support of photovoltaic system with a certain power reserve.Finally,the performance of the proposed control strategy is verified by simulation,and the advantages and effectiveness of PV system participating in primary frequency regulation are displayed.By coordinating between virtual inertial control and frequency damping control,photovoltaic systems can support the frequency stability of the grid in an efficient manner.
关键词
频率稳定/光伏系统/虚拟惯性控制/阻尼控制Key words
frequency stability/photovoltaic system/virtual inertial control/damping control引用本文复制引用
基金项目
南方电网科技项目(030900KC23070002)
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据