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Energy storages in microgrids

Energy storages in microgrids

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Energy storage systems are considered as a solution to improve the power quality, dynamic stability, reliability, and controllability, of microgrids in the presence of renewable energy resources (RES). The energy storage can act as an energy buffer to compensate renewable intermittency and load uncertainties. It enhances the stability of the microgrid by providing the virtual inertia for the system. Energy storage systems can also enhance the microgrids' efficiency by managing the power flow and reducing operational loss. They benefit electricity customers by maximizing renewable energy utilization and minimizing electricity bills through optimal energy management. This chapter discusses microgrid challenges, energy storage technologies, and applications of energy storage within a microgrid.

Chapter Contents:

  • 3.1 Introduction
  • 3.2 Microgrid challenges
  • 3.2.1 Microgrid stability
  • 3.2.2 Microgrid power management
  • 3.2.3 Microgrid power quality and reliability
  • 3.3 Energy storage technologies
  • 3.4 Energy storage applications in microgrids
  • 3.4.1 Stability enhancement
  • 3.4.1.1 Voltage stability
  • 3.4.1.2 Frequency stability
  • 3.4.1.3 Case studies
  • 3.4.2 Energy management
  • 3.4.2.1 Reducing the complexity of energy management problem
  • 3.4.2.2 Time-shifting of generation and demand
  • 3.4.2.3 Reducing power loss and improving efficiency
  • 3.4.2.4 Case studies
  • 3.4.3 Power quality improvement
  • 3.4.3.1 Renewable intermittency compensation
  • 3.4.3.2 Voltage support
  • 3.4.3.3 Power factor correction
  • 3.4.3.4 Phase balancing
  • 3.4.3.5 Harmonic compensation
  • 3.4.3.6 Case studies
  • 3.4.4 Reliability improvement
  • 3.4.4.1 Ride-through and bridging
  • 3.4.4.2 Resource adequacy
  • 3.4.4.3 Case studies
  • 3.4.5 Resiliency improvement
  • 3.4.5.1 Case studies
  • 3.5 Challenges and barriers
  • 3.6 Conclusion
  • References

Inspec keywords: renewable energy sources; energy storage; power generation economics; distributed power generation; power generation control; power generation reliability

Other keywords: efficiency; power flow; reliability; microgrids; controllability; power quality; renewable energy resources; optimal energy management; load uncertainties; energy buffer; energy storage; dynamic stability; operational loss; electricity bills

Subjects: Other energy storage; Energy resources and fuels; Energy storage; Distributed power generation; Energy resources; Power system management, operation and economics

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