| Title |
Realization of Torsional Response based on Multi-mass Modeling of Turbine-Generator Shaft System |
| Authors |
박지경(Park, Ji-Kyung) ; 조규정(Cho, Gyu-Jung) ; 손승현(Sohn, Seung-Hyun) ; 정세진(Chung, Se-Jin) ; 김철환(Kim, Chul-Hwan) |
| DOI |
https://doi.org/10.5370/KIEE.2015.64.2.201 |
| Keywords |
Mechanical-electrical analogy ; State-space equation ; Turbine-genrator shaft system ; Torsional response |
| Abstract |
Turbine-generator torsional response is caused by interaction between electrical transient air-gap torque and mechanical characteristics of turbine-generator shafts. If torsional shaft torque exceeds a certain threshold, the loss of fatigue life may occur and, in the end, it is possible to happen permanent shaft failure. Therefore, it is required to understand the torsional response for reliable operation and protection of turbine-generator shaft system. In this paper, we introduced multi-mass modeling method of turbine-generator shaft system using mechanical-electrical analogy and state-space equation to verify the transient torsional response based on ElectroMagnetic Transient Program (EMTP). These simple realization methods for turbine-generator shaft torsional response could be helpful to understand torsional interaction phenomena and develop the transient torque reduction countermeasures for turbine-generator shaft system. |