...步振荡；次同步振荡抑制 [gap=681]Keywords: Full-controlled Converting Device; Generating Set; Subsynchronous Oscillation; Subsynchronous ...
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...外激励频率与固有频率相等或倍数关系时产生的振动，幅值有明显的变化 电力系统次同步振荡（subsynchronous oscilla-tion, SSO）是一种低于工频的有功振荡，它会导致发电机组大轴的疲劳积累，甚至断裂，严重威胁着电力系统的安全运行。
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次同步振荡阻尼控制器 SSDC
In this paper, subsynchronous oscillations in AC-DC power systems and its countermeasures are focused, and the mechanisms of subsynchronous resonance in series capacitor compensated transmission system and subsynchronous oscillation in HVDC transmission system are analyzed detailedly.
本文以交直流电力系统次同步振荡的分析及其抑制技术为研究重点,详细地分析了由串联补偿电容引起的电力系统次同步谐振和由高压直流输电系统引起的电力系统次同步振荡的机理。
参考来源 - 交直流电力系统次同步振荡分析与抑制方法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
高压直流输电系统在一定条件下可能引发系统的次同步振荡。
The HVDC transmission system may lead to subsynchronous oscillation under certain circumstances.
为了抑制次同步振荡，应采用可控串联电容器补偿（TCSC）。
Thereby, for restraining SSO, thyristor controlled series compensation (TCSC) should be adopted.
其结论对系统中低频振荡和次同步振荡的抑制提供了理论依据，对系统的安全稳定运行有参考价值。
The conclusion provides academic bases to restrain LFO and SSO and is significant to the security and stability of power system.
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