摘要
为解决新能源占比提升下电网面临的弃电与稳定性问题,文章以某200 MW/800 MWh锂电池储能电站为对象,采用ETAP软件开展并网暂态计算分析。搭建“案例电站–电网”联合模型,通过稳态潮流校验确保模型准确性后,设计并网冲击、负荷突变、单相接地故障3类暂态场景,提取电压超调/暂降、频率波动等核心指标,对比国标约束诊断出PCS无功调节滞后等问题。研究成果为大型储能电站并网接入优化提供了技术依据,对提升电网新能源接纳能力、保障电网安全稳定运行具有参考价值。
In order to solve the problems of power abandonment and stability faced by the power grid under the increasing proportion of new energy,this study takes a 200 MW/800 MWh lithium battery energy storage power station in a certain province as the object,and uses ETAP software to carry out grid connected transient calculation analysis.Research and build a joint model of case power station grid,ensure the accuracy of the model through steady-state power flow verification,design three transient scenarios of grid impact,load mutation,and single-phase grounding fault,extract core indicators such as voltage overshoot/sag and frequency fluctuation,and compare them with national standard constraints to diagnose problems such as PCS reactive power regulation lag.This study provides technical basis for optimizing the grid connection of large-scale energy storage power stations,and has reference value for improving the grid's ability to accept new energy and ensuring the safe and stable operation of the grid.
出处
《电力系统装备》
2025年第12期110-111,121,共3页
Electric Power System Equipment
关键词
ETAP
大型储能电站
暂态计算
ETAP
large scale energy storage power stations
transient calculation
