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The necessary shift from fossil fuels to regenerative sources imposes a great challenge for future power transmission. A large, meshed HVDC-Grid is proposed by several experts as the best and most efficient solution. For meshed DC-Grids, however, new and essential requirements - especially regarding availability and reliability - have to be researched very… (More)
The Modular High Frequency converter (MHF) is a new converter topology especially designed for vehicle applications. It enables ultra-light weight and volume by drastic reduction of passive components and cooling equipment. This paper deals with an optimized control strategy of the MHF that leads to minimized capacitance installed in the drive system.
Magnetic stimulation pulse sources are very inflexible high-power devices. The incorporated circuit topology is usually limited to a single pulse type. However, experimental and theoretical work shows that more freedom in choosing or even designing waveforms could notably enhance existing methods. Beyond that, it even allows entering new fields of… (More)
For the future demand of electrical energy, both a reliable and an environmental friendly solution is of high importance. The integration of many widely dispersed regenerative energy sources imposes a great challenge for the existing HVAC grids. A meshed, multiterminal HVDC-SuperGrid is considered to be the best and most efficient solution. This concept… (More)
Excellent dynamic behavior and controllability even under fault conditions are main requirements of future electric drive systems. The Modular High Frequency Converter (MHF) fulfills these requirements and enables additional advantages especially low weight, low volume and redundant operation after faults. This paper presents control strategies and… (More)
Emulation of electric machines - during development or power train testing - is getting increased importance. While, in the beginning, the focus was mainly to act as an artificial load for converter tests, future requirements include realistic testing of dynamic response, harmonics and harsh failure scenarios. According to these needs, a universal, scalable… (More)