1–6 Jun 2025
Taipei International Convention Center (TICC)
Asia/Taipei timezone

Nonlinear simulations of the fast orbit corrector magnets for PETRA IV

WEPB030
4 Jun 2025, 16:00
2h
Exhibiton Hall A _Bear (TWTC)

Exhibiton Hall A _Bear

TWTC

Poster Presentation MC7.T09 Normal Conducting Magnets Wednesday Poster Session

Speaker

Dominik Moll (Technical University of Darmstadt)

Description

Fast orbit feedback systems are an important component in fourth-generation synchrotron radiation sources such as PETRA IV at DESY in Hamburg, Germany. These control systems are designed to stabilize the particle orbit, i.e., to correct deviations from the design orbit due to various disturbances. To that end, such a system employs fast orbit corrector magnets, which must be powered at frequencies up to the kilohertz range. This leads to significant eddy current effects that must be predicted via finite element simulations. Therefore, extensive simulation studies have already been conducted.
These simulations did not, however, consider the magnetization curve’s nonlinearity since doing so requires prohibitive computational effort when using commercial software. Hence, we have constructed a dedicated method, based on a combination of the harmonic balance finite element method and homogenization schemes, to enable nonlinear simulations. This contribution outlines the general idea and application of our method to the corrector magnets of PETRA IV and presents the most important findings regarding the impact of the nonlinear magnetization curve on the magnet’s performance.

Region represented Europe
Paper preparation format LaTeX

Author

Jan-Magnus Christmann (Technical University of Darmstadt)

Co-authors

Dominik Moll (Technical University of Darmstadt) Herbert De Gersem (Technical University of Darmstadt) Laura D'Angelo (Technical University of Darmstadt) Matthias Thede (Deutsches Elektronen-Synchrotron DESY) Sajjad Hussain Mirza (Deutsches Elektronen-Synchrotron DESY) Sven Pfeiffer (Deutsches Elektronen-Synchrotron DESY)

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