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“Looking Through Walls” – Actuator Position Measurement Through a Conductive Wall
(2020)2020 23rd International Conference on Electrical Machines and Systems (ICEMS)This paper investigates the design of an Eddy Current Sensor (ECS) for position measurement of a moving conductive target located behind a fixed conductive shielding surface. Such a sensor can e.g. be used in completely sealed actuators with magnetically levitated rotor or mover for high purity applications. A detailed analysis of the sensor is conducted, starting from the conventional ECS and its equivalent circuit model, which is then ...Conference Paper -
Analysis and Evaluation of Active/Hybrid/Passive dv/dt-Filter Concepts for Next Generation SiC-Based Variable Speed Drive Inverter Systems
(2020)2020 IEEE Energy Conversion Congress and Exposition (ECCE)State-of-the-art variable speed drive inverter systems are typically employing 1200 V Si IGBTs with antiparallel freewheeling diodes, resulting in a large overall semiconductor chip area, relatively high switching losses and/or low switching frequencies, and causing a substantial on-state voltage drop in both current directions, which inherently limits the peak and part-load efficiency. SiC MOSFETs are seen as natural future replacement ...Conference Paper