A5082207894- Magnetic confinement fusion research
- Iterative Learning Control Systems
- Ionosphere and magnetosphere dynamics
- Black Holes and Theoretical Physics
- Cosmology and Gravitation Theories
- Solar and Space Plasma Dynamics
- Robotic Mechanisms and Dynamics
- Noncommutative and Quantum Gravity Theories
- Real-time simulation and control systems
- Adaptive Control of Nonlinear Systems
- Fusion materials and technologies
- Particle accelerators and beam dynamics
- Electric Motor Design and Analysis
- Control Systems in Engineering
- Multilevel Inverters and Converters
- Numerical Methods and Algorithms
- Dynamics and Control of Mechanical Systems
- Sensorless Control of Electric Motors
Rosenheim Technical University of Applied Sciences
2021-2024
Nawi Graz
2023
University of Graz
2023
Graz University of Technology
2022-2023
Abstract Recently, experiments on basic plasma physics issues for solving future problems in fusion energy have been performed a Large Helical Device. There are several to be solved devices energy. Emerging burning are: alpha-channeling (ion heating by alpha particles), turbulence and transport electron dominant helium ash exhaust, reduction of the divertor heat load. To solve these problems, understanding (1) wave–particle interaction through (inverse) Landau damping, (2) characteristics...
This paper proposes enhancements to FIR filter-based trajectory generation for time-optimal Point-to-Point movements of machines with residual vibration suppression. Considering a set kinematic constraints and the relevant eigenfrequencies mechanical subsystem, filter parameters series rectangular filters are computed. With proposed merge algorithm eigenmode suppression, trajectories generated always compliant utilize full potential limits. It is further extended include Zero-Vibration (ZV)...
A manifestly diffeomorphism-invariant approach to canonical quantum gravity requires the use of composite operators. These can be considered bound states matter and/or gravitons, intrinsically nonperturbative objects. An analytical determine properties such could Fr\"ohlich-Morchio-Strocchi mechanism. We explore necessary technology by applying it various $n$-point functions, including geon propagators and black-hole-particle vertices.
Coefficients of neoclassical transport in tokamaks and stellarators with non-axisymmetric equipotential surfaces mis-aligned magnetic flux are derived for the 1/ν regime. In general case, they given by integral expressions including field line integrals similar to those defining effective helical ripple [V.V. Nemov et al. // Phys. Plasmas. 1999, v. 6, p. 4622]. For small mis-alignments a tokamak simplified geometry, reduced simple analytical expressions.
Servo drives in production machines are either position-, speed-, force- or torque-controlled. As the motor current is proportional to torque force, control loop dynamics crucial for all operating modes. In used semiconductor industry, it particularly important that bandwidths of loops continuously increased. It thus take dependency resistance and inductance on frequency design into consideration. switching frequencies wide-bandgap semiconductors increase, effect becomes even more...
Abstract The correlation between the bifurcation of resonant magnetic perturbations (RMPs) to unshielded state and edge localized mode (ELM) suppression in ASDEX Upgrade is studied using a kinetic plasma response model numerically analytically. For numerical studies, linear Maxwell solver KiLCA for cylindrical geometry quasilinear transport code QL-Balance are used combination with ideal MHD GPEC account realistic tokamak geometry. Based on this modelling, local criterion introduced which...
This paper deals with the analysis and optimization of fixed-point operations in context motion control systems MathWorks MATLAB® Simulink® environment. It presents a procedure for estimating maximum arithmetic error inside modeled loop, which can be used to verify compliance defined precision. Additionally, it shows results runtime different numerical data types combination two operations: addition multiplication. In order improve performance models, optimized implementations are provided,...
High accuracy and high acceleration are initially contradictory requirements for servo drives. Especially production machines in the semiconductor industry, both dynamics particularly important. In this paper, a motion controller linear direct drive is optimized as whole system. The correlation between position stability shown. Due to availability of inverters based on wide-bandgap semiconductors well high-speed analog-to-digital converters with 18 bit resolution, additional options control...
A manifestly diffeomorphism-invariant approach to canonical quantum gravity requires use composite operators. These can be considered bound states of matter and/or gravitons, intrinsically non-perturbative objects. An analytical determine the properties such could Fröhlich-Morchio-Strocchi mechanism. We explore necessary technology by applying it various $n$-point functions, including geon propagators and black-hole-particle vertices.