Type synthesis of TMDs as anti-galloping devices for overhead transmission lines by using planar mechanisms

The successful application of anti-galloping devices plays an important role for the safe operation of power grids, including the application of torsional mass dampers (TMDs). In this paper, the performance index of types of TMDs is proposed based on the galloping mechanism of overhead transmission lines. Furthermore, the types of TMDs are synthesized, taking the performance index of the types of TMDs and operation experience of anti-galloping into account. The synthesized TMDs feature symmetrical or non-symmetrical structures. Finally, several TMDs are illustrated to show the effectiveness of the proposed methodology.