It is well known that line switching operations like reclosing are able to cause transient power oscillations which can stress or damage turbine generators. This paper presents a reclosing scheme to reduce the shaft torsional torques of turbine generators by inserting an additional reactor. In this paper, the turbine generator shaft is represented by a multi-mass model to measure torsional torques generated in the shaft between the turbine and the generator. Transmission systems based on actual data from Korea are modeled to verify the proposed scheme using ElectroMagnetic Transient Program (EMTP) software. The simulation results clearly show the effectiveness of the proposed scheme and torsional torque can be reduced by applying the proposed scheme.
|Number of pages||6|
|Publication status||Published - 2014|
|Event||12th IET International Conference on Developments in Power System Protection, DPSP 2014 - Copenhagen , Denmark|
Duration: 31 Mar 2014 → 3 Apr 2014
|Conference||12th IET International Conference on Developments in Power System Protection, DPSP 2014|
|Period||31/03/14 → 3/04/14|
Oh, Y-S., Gwon, G-H., Kim, C-H., & Aggarwal, R. K. (2014). Development of a reclosing scheme for reduction of turbine generator shaft torsional torques. 12.51. Paper presented at 12th IET International Conference on Developments in Power System Protection, DPSP 2014, Copenhagen , Denmark.