摘要
本文主要介绍了220 kV光伏电站SVG高频振荡引发电压波动的故障案例。首先,通过分析现场故障录波,初步确定故障原因为SVG与系统振荡;其次,基于RTlab仿真平台搭建了光伏电站全站和附近局部电网的电磁暂态模型并开展故障复现,仿真复现结果与故障录波基本一致;最后,提出了“消除SVG高频段负阻尼”的振荡抑制措施,并通过仿真验证其有效性。本文的新能源场站SVG高频振荡分析可为今后类似故障的防范和处理提供经验与参考。
This paper mainly introduces the fault case of voltage fluctuation caused by SVG high-frequency oscillation in 220 kV PV power station.First of all,the oscillation of SVG and power system account for this fault preliminarily by Analysising the on-site fault recordings.secondly,building the electromagnetic transient model of the whole station of PV and the local grid based on the RTlab simulation platform carries out the fault reproduction,and the results of the simulation reproduction are basically consistent with the fault recordings.lastly,the solution of eliminating the SVG high-frequency negative damping is proposed and and its effectiveness is verified by simulation.This analysis of SVG high-frequency oscillation for renewable energy stations can provide experience and reference for the prevention and treatment of similar faults in the future.
作者
张明强
何廷一
曾丕江
何鑫
马红升
彭俊臻
余多
Zhang Mingqiang;He Tingyi;Zeng Pijiang;He Xin;Ma Hongsheng;Peng Junzhen;Yu Duo(Electric Power Institute of Yunnan Power Grid Co.,Ltd,Kunming,Yunnan,650217,China;Yunnan Electrical Power Dispatching and Control Center,Kunming,Yunnan,650011,China)
出处
《云南电力技术》
2024年第1期3-7,11,共6页
Yunnan Electric Power
关键词
SVG
高频振荡
负阻尼
RTlab仿真
SVG
high-frequency oscillation
negative damping
RTlab simulation
