CAJ | 학술논문

直流输电（HVDC）或可控串补线路运行时，有可能激发附近的汽轮发电机组轴系次同步振荡（SSO），振荡具有复杂的波形。对首先发生的这种复杂次同步振荡的特性进行了研究，并分析了引起SSO的原因，最后提出了使用基于STATCOM的SSO阻尼装置方案。现场运行结果表明，这种SSO阻尼装置可有效抑制发电机组轴系的SSO，其性价比有明显的优势。
직류수전（HVDC）혹가공천보선로운행시，유가능격발부근적기륜발전궤조축계차동보진탕（SSO），진탕구유복잡적파형。대수선발생적저충복잡차동보진탕적특성진행료연구，병분석료인기SSO적원인，최후제출료사용기우STATCOM적SSO조니장치방안。현장운행결과표명，저충SSO조니장치가유효억제발전궤조축계적SSO，기성개비유명현적우세。
The subsynchronous oscillations can be occur irregular and have a hybrid waveform,when there is high voltage direct current (HVDC) and also TCSC in the power systems. The paper has researched this hybrid subsynchronous oscillations’ characteristic. analyzed the causes of subsynchronous oscillation (SSO) and proposed a damping countermeasure by using static synchronous series compensator (STATCOM). Site operation results show that the SSO damping device have suppressed SSO effectively and have a excellent price-performance.