电力工程技术2024，Vol.43Issue(4)：26-35,10.DOI:10.12158/j.2096-3203.2024.04.003
基于光储联合系统的电网分段恢复策略
Segmentation restoration strategy of power grid based on combined optical storage system
摘要
Abstract
At present,new energy is introduced into the power system in large quantities.In order to make it replace the traditional hydropower and gas units as the black start power supply,segmentation restoration strategy of power grid based on the combined optical storage system is studied.Firstly,according to the structure and control mode of the optical storage system,the energy storage system establishes a stable grid-connected bus voltage is proposed,and the photovoltaic system is connected to the grid step by step.Secondly,in order to enhance the damping inertial support of photovoltaic power generation system,virtual synchronous control is proposed to be added to the inverter side of photovoltaic system.Finally,in the process of grid connection between the units to be started and the system load,the energy storage system is configured with additional damping controller to suppress the sub-synchronous oscillation generated by the grid black start,so as to ensure the stable recovery of the grid.In PSCAD/EMTDC,the electromagnetic transient simulation model of black start of the combined optical storage system is built and the simulation analysis is carried out.The results show that the busbar voltage deviation and system frequency deviation in the recovery process of the system are less than 0.65％and less than 1％,which meets the requirements of black start and verifies the feasibility of the start-up strategy proposed in the paper.关键词
光伏系统/储能系统/黑启动/分段恢复/虚拟同步控制/附加阻尼控制器Key words
photovoltaic system/energy storage system/black start/segmentation restoration/virtual synchronous control/additional damping controller分类
信息技术与安全科学引用本文复制引用
张英敏,张婉欣,李保宏,黑玉鹏,王腾鑫,张敏..基于光储联合系统的电网分段恢复策略[J].电力工程技术,2024,43(4):26-35,10.基金项目
四川省自然科学基金资助项目(2022NSFSC02-62) （2022NSFSC02-62）
国家电网有限公司总部科技项目(5100-202199274A-0-0-00) （5100-202199274A-0-0-00）
