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Distributed generation deployment in the Libyan MV network: adverse impacts on practised protection scheme in the DN

Distributed generation deployment in the Libyan MV network: adverse impacts on practised protection scheme in the DN

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One of the most exceptional perspectives of the industrial growth taking place worldwide is the continued and abnormal increase in the energy demand. Concerns regarding the economic and environmental impacts of conventional energy sources have driven researchers and inventors to create more efficient, and less costly approaches for delivering electric energy. Utilizing renewable energy-based Distributed Generations (DGs) are likely to be employed and integrated into the Distribution Network (DN) increasingly as a prominent alternative to conventional energy sources used so far. The increased penetration of bulky DG units to the electrical network created fundamental shifts and changes in the philosophy of the operation and protection of DNs. The design of a particularly suitable protection scheme is one of the most significant technical problems associated with the integration of DG. In this study, The effects associated with the integration of DGs into The Libyan medium voltage-DN have been highlighted and discussed in details. In particular, the insufficiency of the utilized protection practices thoroughly investigated and explained. Generally applicable approaches are recommended, which can enhance the applied protection schemes in the interconnected-DN.

Chapter Contents:

  • 17.1 Introduction
  • 17.1.1 Protection issues in DPGS
  • 17.1.1.1 Variation in fault current directions and levels
  • 17.1.1.2 Protection blinding
  • 17.1.1.3 Sympathetic tripping
  • 17.1.1.4 Nuisance tripping of DG
  • 17.1.1.5 Failed reclosing
  • 17.1.1.6 Loss of fuse-saving scheme: furthermore, the presence
  • 17.1.1.7 The effect of infeed on the distance protection
  • 17.1.1.8 Loss of protection coordination
  • 17.1.1.9 Impact of interconnection transformer
  • 17.1.1.10 Interconnection standards
  • 17.2 Recommendations and suggestions
  • 17.3 Conclusion
  • References

Inspec keywords: power generation economics; power distribution protection; power distribution economics; renewable energy sources; power system interconnection; power generation protection; distributed power generation

Other keywords: interconnected distribution network protection scheme design; energy demand; economic impact; distributed generation deployment; environmental impact; Libyan MV network; renewable energy-based distributed generations; electric energy

Subjects: Power system protection; Power system management, operation and economics; Distributed power generation; Distribution networks

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