A5070331029- Multilevel Inverters and Converters
- Advanced DC-DC Converters
- Microgrid Control and Optimization
- Iterative Learning Control Systems
- Sensorless Control of Electric Motors
- Elevator Systems and Control
- Low-power high-performance VLSI design
- Teleoperation and Haptic Systems
- Real-time simulation and control systems
- Electric Motor Design and Analysis
Technical University of Darmstadt
2015-2019
A Finite Control Set Model Predictive Controller (FCS-MPC) is developed and implemented in real time on a FPGA platform. The classical trajectory tracking cost function of this controller extended to include the inverter switching conduction losses explicitly. Depending phase current magnitude its direction, different combinations (IGBT turn on, IGBT off, diode reverse recovery) or diode) have been considered implementation. This approach aims reduce while keeping dynamic performance...
In this paper, the effects of time delays from ΔΣ-ADCs, used for current measurement, on Finite Control Set Model Predictive (FCS-MPC) is investigated. For goal, two FCS-MPC controllers with 50 kHz and 100 sampling rate one step prediction horizon, were developed implemented in real FPGA order to control electrical torque an Induction Machine (IM). With help Hardware Loop (HIL) setups, performance 18 bits 21 ΔΣ-ADC modulation techniques as well without any Regarding results show higher Total...
This paper introduces a novel optimal torque control scheme based on dynamic programming for of inverter fed induction machines. Utilizing method, cost function is minimized in order to identify optimum sequence switching operations the whole prediction horizon at every sampling instant. The proposed strategy significantly reduces frequency while stator flux and electromagnetic follow their reference values with much less ripple. Simulation done accurate model machine results confirm...
In this paper a Finite Control Set Model Predictive Controller (FCS-MPC) is developed and implemented in real time on an FPGA platform. The common reference tracking squared l2-norm cost function redefined order to reduce the inverter losses directly instead of reducing switching frequency. Different combinations conduction are considered proposed aiming at more effective reduction losses. Experimental results show that, with operations happen frequently when corresponding phase current...
Modern production environments place high demands on the logistics systems that are used. High flexibility and throughput expected, combined with availability efficient operation. To meet these requirements, this paper presents a novel intralogistics system based functionality of planar motor. Following operating principle moving stator, vehicles entirely passive hardware for generation motion is integrated into floor. This achieved in form compact, decentrally interconnected floor units,...