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Selected Projects

  • support of the project work for the development of a prototype for a five-phase active filter (FAF) for the residual ground fault current compensation
  • dimensioning of the R-C-protection circuit for a 35-MVA-EAF transformer
  • analysis of the PowerQuality in a 0.4-kV local network with full supply from renewable energy sources, dimensioning harmonics compensation
  • feasibility study on a three-phase current grid connection of an offshore wind farm, variant investigations, basic design of the equipment
  • development of a mathematical model for the calculation of short circuit current fractions of asynchronous motors and FC drives
  • initiation of an active filter in the automotive industry and its integration into the network control technology
  • measurement-based analysis of the PowerQuality in a printing plant
  • acceptance measurements regarding the harmonics conditions at belt drives in an open-cast lignite mine
  • technical calculations and proof of compliance with the connection rules for 4 different offshore wind farms (288 MW - 400 MW)
  • dynamic stability testing for the emergency power supply in an offshore wind farm
  • detailed examination on planning and operation of 380-kV compensation systems (2 x 300 Mvar)
  • measuring and assessment of the residual ground fault currents in a 20-kV grid with resonance neutral earthing
  • analysis on the circuit feedback of an induction furnace
  • verification of the electrical properties of several Romanian wind farms with grid connection outputs between 10 MW and 650 MW
  • appraisal of the grid-code compliance of wind power systems (until late September 2011 more than 20 different wind farms with MV and HV power supply)
  • measurement-based analysis of the PowerQuality in an industrial grid
  • provision of reactive power by renewable energy generating plants in a 110-kV grid: basic examinations, drafting recommendations for action (6 different grid groups of 4 different distribution grid operators)
  • technical and economic assessment of the change of a 110-kV grid from resonance neutral earthing to low-resistance neutral earthing
  • basic examinations on harmonics in a power station’s own electrical requirements
  • grid study on the change of the Berlin Nordring from 220-kV to 380-kV
  • collaboration in a research project on the development of a regional combined cycle power station with various renewable energy generating plants and a dedicated, network-isolated 10 MV battery storage system

Selected Clients

  • 50Hertz Transmission GmbH
  • ALSTOM Grid GmbH
  • Areva Energietechnik GmbH
  • E.ON edis AG
  • EnBW Regional AG
  • Enercon GmbH
  • ENSO Energieversorgung Sachsen Ost GmbH
  • MARTIFER Renewables
  • MITNETZ Strom GmbH
  • REpower Systems SE
  • Rockwell Automation GmbH
  • Schneider Electric GmbH
  • Stadtwerke Erfurt GmbH
  • TEN Thüringer Energienetze GmbH
  • Vattenfall Europe Mining AG