基于混合控制策略的主动配电网韧性提升方法
A Resilience Enhancement Method for Active Distribution Networks Based on Hybrid Control Strategy
徐东旭 1闫坤 1陈宇 1颜钰霆 1缪进荣 1吕星辰 1徐诗甜1
作者信息
- 1. 国网市上海电力公司松江供电公司,上海 201600
- 折叠
摘要
针对新能源并网传统跟网型控制难以对故障进行快速主动应对的问题,提出了一种基于构网型与跟网型控制相结合的混合控制方法.基于统一建模方法建立了构网型和跟网型控制的控制模型,以提高模型对不同类型控制器的适应性.通过功率解耦和扩展状态观测对分布式电网的动态响应和控制结构进行分析,利用提出的统一控制器对配电网中不同类型逆变器进行稳定控制,可将电压偏差状态控制在预期范围内.通过仿真和算例验证了所提出的方法不仅可提升配电网对系统干扰的免疫力,还可提高配电网的稳定运行能力.
Abstract
In response to the problem that traditional grid-following control for new energy grid connection is diffi-cult to quickly and actively respond to faults,a hybrid control method based on the combination of grid-forming and grid-following control is proposed.Based on the unified modeling method,control models for grid-forming and grid-following control are established to improve the adaptability of the model to different types of controllers.Through power decoupling and extended state observation,the dynamic response and control structure of the dis-tributed power grid are analyzed.The proposed unified controller is used to stabilize the control of different types of inverters in the distribution network,and the voltage deviation state is controlled within the expected range.The proposed method has been verified through simulation and examples to not only improve the immunity of the distribution network to system interference,but also improve the stable operation ability of the distribution net-work.
关键词
配电网/混合控制/稳定性Key words
distribution network/hybrid control/stability引用本文复制引用
出版年
2024
NETL
NSTL
万方数据