Deterioration of frequency response in low inertia networks due to governor dead-bands

Dayan B. Rathnayake, Reza Razzaghi, Behrooz Bahrani

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review


Renewable energy sources are increasingly replacing conventional fossil-fueled power plants in electric power systems around the world. As a result, the frequency excursions have become high due to the low synchronous inertia remaining in the system. An example is South Australia, where the generation mix heavily depends on renewable energy sources. Therefore, when South Australia is subjected to a non-credible contingency such as a network separation, the impact of governor dead-bands towards frequency stability can be significant. In this work, the influence of governor dead-bands on frequency nadir and quasi steady-state frequency is investigated. In turn, their effect towards the services, which are operating outside the normal operating frequency band, such as load shedding and frequency control services is discussed.

Original languageEnglish
Title of host publicationProceedings - 2019 IEEE International Conference on Industrial Technology (ICIT)
EditorsAntonio Luque, Luis Gomes, Qing-Long Han, Peter Sokolowski
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages6
ISBN (Electronic)9781538663769, 9781538663752
ISBN (Print)9781538663776
Publication statusPublished - 4 Jul 2019
EventIEEE International Conference on Industrial Technology 2019 - Melbourne, Australia
Duration: 13 Feb 201915 Feb 2019
Conference number: 20th (Proceedings)


ConferenceIEEE International Conference on Industrial Technology 2019
Abbreviated titleICIT 2019
Internet address


  • Frequency stability
  • Governor response
  • Low inertia power systems
  • Power system security

Cite this