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On DC injection to AC grids from distributed generation

Author

Summary, in English

Distributed generation, DG, introduces multi-generator grids and new modes of operation. DG will likely introduce power electronic, PE, converters on a large scale at the low- and medium-voltage levels. DC injection into the AC grid is a threat from grid-connected PE converters that are badly structured. Low DC currents in AC current are difficult to measure at those low levels decided in IEEE™ 1547 and discussed in other international working groups. Transformers and PE can be co-designed to eliminate DC injection. Modern adjustable-speed drives, ASDs, especially, those with active rectifiers, form a basis to discuss and solve issues of DC injection to AC grids from DG also named distributed energy resources, DER or even DR. DC components from power electronics, embedded in solar power, wind power, energy storage, smart houses, smart-office buildings, own generators, etc. give rise to grid-aspects like AC components give frequencies around the fundamental one. FMEA, failure mode and effects analysis, is judged to be a tool for further synthesis

Publishing year

2005

Language

English

Publication/Series

2005 IEEE 11th European Conference on Power Electronics and Applications

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Other Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • smart-office buildings
  • smart houses
  • failure mode and effects analysis
  • wind power
  • solar power
  • distributed energy resources
  • active rectifiers
  • adjustable-speed drives
  • power electronic converters
  • multigenerator grids
  • distributed generation
  • DC injection
  • AC grids

Conference name

2005 IEEE 11th European Conference on Power Electronics and Applications

Conference date

2005-09-11 - 2005-09-14

Conference place

Dresden, Germany

Status

Published

ISBN/ISSN/Other

  • ISBN: 90-75815-09-3