Distributed generation systems

Distributed generation systems

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Power electronics continues to penetrate into more power applications and plays a main part in energy transformation and consuming. It is anticipated in power industry that power electronics will become more involved in energy generation and distribution. The high efficiency and compactness of power converters are the main momentum behind power electronic technologies. It is therefore considered an enabling technology. The earth, wind, sun and plants are the main resources for all renewable energy technologies which provide environmental friendly, numerous, clean energy. In our modern life, energy has a vital role in future economic growth and well-being. While handling climate change problem and guaranteeing the energy supply security, numerous challenges should be taken into account. As part of addressing such challenges is to study to what extent distributed generation (DG) could supplement, or in the longer term potentially provide an alternative to, a centralised system. There are different incentives and barriers that impact on distributed electricity generation that should be taken into account.

Chapter Contents:

  • 7.1 Introduction
  • 7.2 Distributed generation
  • 7.2.1 Description of the problem
  • 7.2.2 Applications of distribution generation
  • Islanded mode of operation
  • Standby power
  • Grid-connected mode
  • 7.3 Voltage source converters
  • 7.4 Control techniques in DG systems
  • 7.4.1 Grid connection
  • Without (no) communication link
  • With communication link
  • 7.4.2 Islanded mode
  • Single operation
  • Parallel operation
  • 7.5 Power quality in DG
  • 7.5.1 Grid connected
  • 7.5.2 Island mode
  • Power frequency
  • Supply voltage variation (Un)
  • Voltage unbalance
  • Voltage harmonic distortion
  • Voltage fluctuation (flicker)
  • Supply voltage dips
  • 7.6 Harmonics and passive filter design for DG
  • 7.6.1 Power filter configurations
  • 7.6.2 Analysis of the three filter topologies
  • L-filter
  • LC-filter
  • LCL-filter
  • 7.6.3 Filter design
  • 7.6.4 Case study
  • 7.6.5 Damping filter design
  • 7.6.6 Simulation results
  • References

Inspec keywords: distributed power generation; power consumption; power electronics; power convertors

Other keywords: economic growth; distributed electricity generation; power converters; energy supply security; energy transformation; renewable energy technology; power industry; energy generation; power electronics; energy consumption; climate change problem; distributed generation systems; energy distribution

Subjects: Distributed power generation

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