• 作者： 曹大鵬; 秦純; 粘孝先
• 作者服務機構： 國立中山大學電機工程學系
• 中文摘要： 由於各種電力系統故障或擾動所造成之轉軸與葉片振動，往往是汽輪發電機損壞之根源。因此，為確保汽輪發電機組之安全，這種轉軸與葉片振動必須有效抑制。由汽輪發電機之基本理論，利用機械－電機轉換模型，可了解汽輪機組中，各構件自然頻率與振源振動響應之關係，並用較精確之電機與機械模型和所設計之飛輪聯軸器，對各種較嚴重之電力擾動做模擬分析；從模擬結果，可以明顯的看出飛輪聯軸器之振動抑制效果。因模型模擬與實際系統仍有差距，所以實務應用之可靠度仍待實際操作測試，至於疲勞破壞評估，因其周遭環境因素與材料性影響精確甚多，在此只是建議性之危機指標。
• 英文摘要： Oscillations in shaft and blade systems occurring from power system faults and disturbances willnormally cause severe turbogenerator system damage. Therefore, how to depress these oscillations effec-tively is always a major concern of electrical engineers to ensure the security of operating power units.From the basic theories of turbogenerators and equivalent electrical circuits derived from mechanicalmodels, we can explain the relationship between the natural frequency and oscillation in the elements of aturbogenerator. More accurate electrical and mechanical models and the flywheel coupling have been devel-oped and applied to the simulation processes. From the solution of this simulation, it is clearly provedthat the flywheel coupling is one of the efficient methods to depress turbogenerator vibrations. Due tothe tolerance between the simulations and actual system, further testing on real systems is necessary to vali-date the simulation results.
• 中文關鍵字： trubogenerator; flywheel coupling; vibration
• 英文關鍵字： --