Düsseldorf, North Rhine-Westphalia, Germany
I am an Electrical Engineer developing power electronics and traction drive systems for e-buses and future electrical commercial vehicles. Experience in the development of converter systems for wind power drives. Looking for interesting contacts, professional & technical expertise exchange and old friends.
- Development of electrical systems for current and future e-buses, trolleybuses, and e-trucks (electrical machine, traction and auxiliary converters, battery storage); - Design and dimensioning of power electronic converters, electrical components considering customer requirements and relevant standards; - Technical project lead on component level - Analysis and creation of safety concepts
- Development of control algorithms and functions for software code implementation on control unit - Main responsible person for complete FRT measurement campaign for main customer (pre-analysis, System tuning on site, measurement data analysis) - System calculations and simulations of Doubly Fed Induction Generator (DFIG) and Full Scale Converter (FSC) wind converter-generator systems - Loss, lifetime and efficiency calculations of frequency converters - Thermal modelling of semiconductor devices as well as their cooling Systems - Analysis of extreme cases, e.g. Fault Ride Through (FRT) cases - Customer interaction concerning the specifications and their feasibility - Used tools: Matlab/Simulink, PLECS, Mathematica, MS Excel among others
- Technical Lead Engineer for frequency converters in wind turbines - Technical coordination of prototype developments for IGBT converters (DFIG systems) during the product life cycle, interaction with different development departments and execution of electrical engineering tasks - Measurements, commisionings and converter function tests & adjustments at the wind turbine in the field as well as in the internal test bay - Collaboration with the company's customers
-Research for parameter identification, operating map measurement and control synthesis of electrical drives - Implementation of bus control and interaction of the laboratory converters and devices using CAN/CANOpen protocol - Author of "Offline Extraction of Induction Machine Parameters for Control Strategy Synthesis" (S. Koschik, F. Bauer, R.W. De Doncker, Veröfentlichung: IPEC Hiroshima, Japan, May 2014)
Intern in the high power lab for drive systems: - Participation in type test and routine tests in variable-speed drive converters - Responsible for commisioning and operation of Diesel generator-converter systems - Implementation of Labview programs for automated control and measurements
Intern in the high power lab for high power circuit breaker: - Development and implementation of simulation tool for synthetic test circuits for choosing passive components concerning a requested electrical characteristic (Matlab/Simulink, Excel) - Interpretation of IEC standards