TY - JFULL AU - Jong-Ian Tsai and Chi-Chuan Chen and Tung-Sheng Zhan and Rong-Ching Wu PY - 2010/6/ TI - Depressing Turbine-Generator Supersynchronous Torsional Torques by Using Virtual Inertia T2 - International Journal of Electrical and Computer Engineering SP - 906 EP - 910 VL - 4 SN - 1307-6892 UR - https://publications.waset.org/pdf/7200 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 41, 2010 N2 - Single-pole switching scheme is widely used in the Extra High Voltage system. However, the substantial negativesequence current injected to the turbine-generators imposes the electromagnetic (E/M) torque of double system- frequency components during the dead time (between single-pole clearing and line reclosing). This would induce supersynchronous resonance (SPSR) torque amplifications on low pressure turbine generator blades and even lead to fatigue damage. This paper proposes the design of a mechanical filter (MF) with natural frequency close to double-system frequency. From the simulation results, it is found that such a filter not only successfully damps the resonant effect, but also has the characteristics of feasibility and compact. ER -