CAJ | 학술논문

为分析风电机组接入对同步机主系统低频振荡的影响，首先建立FSIG及DFIG风电机组小干扰分析模型，其次应用基于奇异摄动系统动态降阶技术揭示两类风电机组接入后同步机主系统阻尼变化机理。将奇异摄动动态降阶与特征值分析相结合，分析不同控制参数的FSIG及DFIG风电机组接入对系统低频振荡模式及阻尼的影响。基于风电接入IEEE测试系统仿真表明，所提出的分析方案能够直观、有效地对两类风电接入系统低频振荡进行分析。
위분석풍전궤조접입대동보궤주계통저빈진탕적영향，수선건립FSIG급DFIG풍전궤조소간우분석모형，기차응용기우기이섭동계통동태강계기술게시량류풍전궤조접입후동보궤주계통조니변화궤리。장기이섭동동태강계여특정치분석상결합，분석불동공제삼수적FSIG급DFIG풍전궤조접입대계통저빈진탕모식급조니적영향。기우풍전접입IEEE측시계통방진표명，소제출적분석방안능구직관、유효지대량류풍전접입계통저빈진탕진행분석。
In order to analyze the effect of wind power integration on low frequency oscillation of synchronous machine main system, the small-signal analysis models of FSIG and DFIG are built firstly, then the damping change mechanism after the above two generators integration is revealed by using the singularly perturbed system reduction. The influence of FSIG and DFIG integration with different parameters on system oscillation modes and damping is analyzed combined with the singularly perturbed system reduction and eigenvalue analysis. The IEEE testing system simulation shows that the proposed scheme can analyze the system low-frequency oscillation after wind power integration intuitively and effectively.