TY - JOUR A1 - Werner, Ulrich A2 - werner, ulrich T1 - Foundation forces caused by dynamic air gap torques of converter driven induction motors influenced by active vibration control: a theoretical analysis T2 - Electrical Engineering N2 - In the paper, a theoretical analysis regarding foundation forces caused by dynamic air gap torques of converter-driven induction motors, influenced by active vibration control, is shown. Based on a plane model, where actuators are placed between the motor feet and steel frame foundation and where the vertical motor feet accelerations are controlled, a mathematical description in the time domain, Laplace domain, and Fourier domain is presented, as well as a block diagram for numerical simulation. A numerical example is shown, where a 2-pole induction motor (2 MW) is analyzed for different cases—motor directly mounted on a steel frame foundation (case 1), actuators between motor feet and foundation, operating passively (case 2) and actively (case 3). It could be shown, that with the presented active vibration control concept the foundation forces due to dynamic air gap torques can be clearly reduced. KW - Induction motor KW - Active vibation control KW - Dynamic air gap torques KW - Foundation forces Y1 - 2021 UR - https://opus4.kobv.de/opus4-ohm/frontdoor/index/index/docId/4454 VL - 104 PB - Springer ER -