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1.新型电力系统运行与控制全国重点实验室(清华大学),北京市 100084
2.国网新疆电力有限公司,新疆维吾尔自治区乌鲁木齐市 830002
Received:01 October 2024,
Revised:2025-04-14,
Published Online:19 May 2025,
Published:25 July 2025
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王晰,翟文辉,田晓煜等.风电并网系统近工频振荡的自适应阻尼控制[J].电力系统自动化,2025,49(14):43-53.
WANG Xi,ZHAI Wenhui,TIAN Xiaoyu,et al.Adaptive Damping Control of Near-fundamental-frequency Oscillation in Wind Power Grid-connected System[J].Automation of Electric Power Systems,2025,49(14):43-53.
王晰,翟文辉,田晓煜等.风电并网系统近工频振荡的自适应阻尼控制[J].电力系统自动化,2025,49(14):43-53. DOI: 10.7500/AEPS20241001001.
WANG Xi,ZHAI Wenhui,TIAN Xiaoyu,et al.Adaptive Damping Control of Near-fundamental-frequency Oscillation in Wind Power Grid-connected System[J].Automation of Electric Power Systems,2025,49(14):43-53. DOI: 10.7500/AEPS20241001001.
风电并网系统在部分线路由于故障、检修等因素退出时,存在有功出力骤变诱发近工频耦合振荡的风险,且不同线路退出后,拓扑结构的差异会导致振荡频率变化。为解决这一问题,提出了一种基于自适应阻尼控制的振荡抑制方法。首先,分析中国某实际风电场的近工频振荡现象,归纳发生振荡的风险场景;然后,阐述自适应阻尼控制的“即测-即辨-即控”结构,包含基于二阶RLC电路等效的振荡特征辨识方法、全工况阻尼控制参数优化设计策略;最后,通过电磁暂态仿真验证了自适应控制对目标系统振荡模式的抑制效果。结果表明,所提自适应控制技术能够实现多样化场景中近工频振荡的快速抑制。
Wind power grid-connected system has the risk of coupled near-fundamental-frequency oscillation (NFFO) induced by sudden changes in active power output when some transmission lines are out of service due to faults or maintenance procedures. Furthermore
various cut-off lines may alter the power system topology
which results in oscillation frequency variations. To address this issue
an actual suppression method based on adaptive damping control is proposed. First
the NFFO phenomenon of an actual wind farm in China is analyzed
and risk scenarios of oscillation are summarized. Then
the “instant measurement-instant identification-instant control” structure of adaptive damping control is elaborated
including the identification method of oscillation characteristics based on second-order RLC circuit equivalence and optimized design strategy of damping control parameters under all operating conditions. Finally
the suppression effect of adaptive control on oscillation modes of the target system is verified through electromagnetic transient simulation. The results show that NFFO can be suppressed quickly in diverse scenarios through the proposed adaptive control technology.
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