CAJ | 학술논문

结合实际工程需求及实践经验，对次同步谐振（subsynchronousresonance，SSR）仿真研究几个重要方面，即机组轴系、串补及附加励磁阻尼控制（supplementaryexcitationdampingcontrol，SEDC）建模和RTDS仿真进行了精细化研究，使其适用于大扰动时的SSR模式稳定性、暂态扭矩和疲劳损耗的精确分析。将改进仿真方法应用于实际串补输电工程，通过上都电厂送出系统一次短路故障情况下SSR事件的仿真分析，并与实际结果进行对比，验证了所述方法仵实际工程SSR分析中的适用性、准确性和有效性。SSR仿真与实际大扰动事件对比分析在国内外应属首次，具有重要的参考价值。
결합실제공정수구급실천경험，대차동보해진（subsynchronousresonance，SSR）방진연구궤개중요방면，즉궤조축계、천보급부가려자조니공제（supplementaryexcitationdampingcontrol，SEDC）건모화RTDS방진진행료정세화연구，사기괄용우대우동시적SSR모식은정성、잠태뉴구화피로손모적정학분석。장개진방진방법응용우실제천보수전공정，통과상도전엄송출계통일차단로고장정황하SSR사건적방진분석，병여실제결과진행대비，험증료소술방법오실제공정SSR분석중적괄용성、준학성화유효성。SSR방진여실제대우동사건대비분석재국내외응속수차，구유중요적삼고개치。
According to practical experiences and based on the demands of practical projects, several important aspects of subsynchronous resonance （SSR）, namely the delicate modeling of generator shaft, fixed series capacitor, supplementary excitation damping control （SEDC） and the real-time digital simulation （RTDS） of SSR, are researched in detail to make them suitable to the accurate analysis on modal stability, transient torque and fatigue life loss when the target system suffers large disturbances. The improved simulation method is applied to actual series-compensated power transmission. By means of simulation analysis on a SSR under short-circuit fault occurred in sending system of Shangdu power plant and the comparison of simulation results of SSR with its actual measured data, the applicability, accuracy and effectiveness of the proposed method in the SSR analysis for actual engineering are verified. It is the first time to adopt the comparative analysis between the simulation results of post-fault SSR and its actual measured data home and abroad, therefore the proposed method possesses reference value.