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On DC injection to AC grids from distributed generation

Publiceringsår: 2005
Språk: Engelska
Publikation/Tidskrift/Serie: 2005 IEEE 11th European Conference on Power Electronics and Applications
Dokumenttyp: Konferensbidrag
Förlag: IEEE--Institute of Electrical and Electronics Engineers Inc.


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


  • Other Electrical Engineering, Electronic Engineering, Information Engineering
  • 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


2005 IEEE 11th European Conference on Power Electronics and Applications
  • ISBN: 90-75815-09-3

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