Frequency stability and synthetic inertia

Frequency stability and synthetic inertia

For access to this article, please select a purchase option:

Buy chapter PDF
(plus tax if applicable)
Buy Knowledge Pack
10 chapters for $120.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Your details
Why are you recommending this title?
Select reason:
Variability, Scalability and Stability of Microgrids — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

Due to low inertia, stochastic nature of renewable energy sources (RESs) and sudden load changes, nearly all the modern microgrids are associated with the dynamic frequency stability issues. Thus it restricts the maximum number of the renewable energy systems that can be penetrated to the microgrid. In order to increase the penetration of low-inertia sources to the microgrid, the frequency stability issues need to be addressed. The frequency stability issues of a typical microgrid are addressed by the addition of extra inertial support from the power sources using power converters and appropriate control loop. In this chapter, the readers are introduced with the basic concepts of the synthetic inertia support for the dynamic frequency stability issues of a hydro-photovoltaic (PV) microgrid. The details of the frequency-power-response-based synthetic inertial support and current control loops are elaborated using a simulation example. The deviation in system's frequency is usually compensated by sourcing or absorbing the active power by the inertial support loop, so by utilizing the concept of inertial loop, the maximum number of RESs integration can be enhanced.

Chapter Contents:

  • 11.1 Frequency stability issues of microgrid
  • 11.2 Effect of low inertia on the frequency stability of microgrid
  • 11.3 Frequency stability enhancement
  • 11.3.1 Synchronous generator (SG) model-based topologies
  • Synchronverters
  • Virtual synchronous machine (VISMA) topology
  • The IEPE's topology
  • Kawasaki Heavy Industries (KHI) topology
  • 11.3.2 Swing equation based
  • ISE lab's topology
  • 11.3.3 Frequency–power-response-based topologies
  • VSYNC's topology
  • Virtual synchronous generators
  • 11.3.4 Droop-based approach
  • 11.4 Case study
  • 11.5 Concluding remarks
  • References

Inspec keywords: frequency control; frequency stability; power generation control; power convertors; power grids; wind power plants; renewable energy sources; electric current control; distributed power generation

Other keywords: power sources; hydro-photovoltaic microgrid; dynamic frequency stability issues; low inertia; microgrids; frequency-power-response-based synthetic inertial support; load changes; synthetic inertia support; inertial support loop; low-inertia sources; renewable energy systems; renewable energy sources

Subjects: Distributed power generation; Wind power plants; Control of electric power systems; Frequency control; Current control

Preview this chapter:
Zoom in

Frequency stability and synthetic inertia, Page 1 of 2

| /docserver/preview/fulltext/books/po/pbpo139e/PBPO139E_ch11-1.gif /docserver/preview/fulltext/books/po/pbpo139e/PBPO139E_ch11-2.gif

Related content

This is a required field
Please enter a valid email address