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Power electronics-microgrid interfacing

Power electronics-microgrid interfacing

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Power electronics is the key enabling technology for modern power systems. Power converters are increasingly used in a wide range of applications from generation to consumption levels. Due to the significant importance of power electronics in modern power systems, this book chapter presents the possible structure of the future power systems employing the microgrid (MG) technologies. Different MG topologies and converter structures are introduced. Moreover, the control and operation principles of power electronic converters in MGs are discussed. Two case studies are provided in order to show the importance of power electronics in operation and control of modern power systems. Finally, the chapter is summarized with highlighting challenges encountering modern power electronics-based power systems.

Chapter Contents:

  • 15.1 Importance of power electronics in a microgrid
  • 15.2 Classifications of microgrids
  • 15.2.1 AC microgrids
  • 15.2.2 DC microgrids
  • 15.2.2.1 Hybrid microgrids
  • 15.3 Power electronic converters
  • 15.3.1 General power conversation concept
  • 15.3.2 DC–DC converters
  • 15.3.3 DC–AC converters
  • 15.4 Power converter switching schemes
  • 15.4.1 Pulse width modulation
  • 15.4.2 Carrier-based pulse width modulation
  • 15.4.3 Zero-sequence injection
  • 15.4.4 Space vector modulation
  • 15.5 Power converter basic control schemes
  • 15.5.1 Electrical model of converters
  • 15.5.2 Control of converters in ac grids
  • 15.5.3 Control of converters in dc grids
  • 15.6 Filters for power converters—active and passive
  • 15.6.1 Passive filters
  • 15.6.2 Active filters
  • 15.7 Case studies
  • 15.7.1 Case I: MPC-controlled converters in ac microgrids
  • 15.7.2 Case II: Power-sharing control in a dc grid
  • 15.8 Conclusions
  • References

Inspec keywords: power system control; power electronics; power convertors; distributed power generation

Other keywords: microgrid interfacing; power electronics-based power systems; power converters; power electronics; power systems; control

Subjects: Power electronics, supply and supervisory circuits; Distributed power generation; Power system control; Power convertors and power supplies to apparatus

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