Impact of distributed generation mix on the effectiveness of islanded operation detection

Research output: Contribution to conferencePaper

Abstract

Distributed generation can be understood as a process where large scale power generation is gradually replaced by smaller power generation facilities with reduced power yield, and mostly connected at the system distribution level. One of the most important requirements for interconnecting distributed generation to healthy power networks is the Loss of Mains (or Islanding) detection. During a Loss of Mains (LOM) event a part of the grid (including distributed generation) losses physical connection with rest of the grid. A condition like this should be detected and actions to disconnect distributed generation should be initiated, in order to protect life and property. A very common passive method used to detect an islanding event, is the Rate of Change of Frequency (ROCOF). Since distribution networks nowadays are accommodating a great amount converter-interfaced generation, there is a risk that such methods may fail to successfully operate or operate spuriously, putting system stability at risk. Most of the existing LOM protection performance studies, consider only a single generator within the islanded part of the network. While historically such approach was reasonable, rapidly increasing numbers of DG connections lead to high probability of islanding with more than one generator in the mix. Therefore, this paper, considers various mixes of generation to investigate how this impacts LOM detection performance. In particular studies are undertaken with a few identified most likely combinations of distributed generators.

Conference

ConferenceSixth Protection, Automation and Control World Conference (PAC World 2015)
CountryUnited Kingdom
CityGlasgow
Period29/06/153/07/15

Fingerprint

Distributed power generation
Power generation
System stability
Electric power distribution

Keywords

  • islanded operation
  • islanded operation detection
  • islanding
  • loss of mains
  • distributed generation
  • plant mix
  • non-detection zone

Cite this

Tzelepis, D., & Dysko, A. (2015). Impact of distributed generation mix on the effectiveness of islanded operation detection. Paper presented at Sixth Protection, Automation and Control World Conference (PAC World 2015), Glasgow, United Kingdom.
Tzelepis, Dimitrios ; Dysko, Adam. / Impact of distributed generation mix on the effectiveness of islanded operation detection. Paper presented at Sixth Protection, Automation and Control World Conference (PAC World 2015), Glasgow, United Kingdom.
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abstract = "Distributed generation can be understood as a process where large scale power generation is gradually replaced by smaller power generation facilities with reduced power yield, and mostly connected at the system distribution level. One of the most important requirements for interconnecting distributed generation to healthy power networks is the Loss of Mains (or Islanding) detection. During a Loss of Mains (LOM) event a part of the grid (including distributed generation) losses physical connection with rest of the grid. A condition like this should be detected and actions to disconnect distributed generation should be initiated, in order to protect life and property. A very common passive method used to detect an islanding event, is the Rate of Change of Frequency (ROCOF). Since distribution networks nowadays are accommodating a great amount converter-interfaced generation, there is a risk that such methods may fail to successfully operate or operate spuriously, putting system stability at risk. Most of the existing LOM protection performance studies, consider only a single generator within the islanded part of the network. While historically such approach was reasonable, rapidly increasing numbers of DG connections lead to high probability of islanding with more than one generator in the mix. Therefore, this paper, considers various mixes of generation to investigate how this impacts LOM detection performance. In particular studies are undertaken with a few identified most likely combinations of distributed generators.",
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Tzelepis, D & Dysko, A 2015, 'Impact of distributed generation mix on the effectiveness of islanded operation detection' Paper presented at Sixth Protection, Automation and Control World Conference (PAC World 2015), Glasgow, United Kingdom, 29/06/15 - 3/07/15, .

Impact of distributed generation mix on the effectiveness of islanded operation detection. / Tzelepis, Dimitrios; Dysko, Adam.

2015. Paper presented at Sixth Protection, Automation and Control World Conference (PAC World 2015), Glasgow, United Kingdom.

Research output: Contribution to conferencePaper

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T1 - Impact of distributed generation mix on the effectiveness of islanded operation detection

AU - Tzelepis, Dimitrios

AU - Dysko, Adam

PY - 2015/6/29

Y1 - 2015/6/29

N2 - Distributed generation can be understood as a process where large scale power generation is gradually replaced by smaller power generation facilities with reduced power yield, and mostly connected at the system distribution level. One of the most important requirements for interconnecting distributed generation to healthy power networks is the Loss of Mains (or Islanding) detection. During a Loss of Mains (LOM) event a part of the grid (including distributed generation) losses physical connection with rest of the grid. A condition like this should be detected and actions to disconnect distributed generation should be initiated, in order to protect life and property. A very common passive method used to detect an islanding event, is the Rate of Change of Frequency (ROCOF). Since distribution networks nowadays are accommodating a great amount converter-interfaced generation, there is a risk that such methods may fail to successfully operate or operate spuriously, putting system stability at risk. Most of the existing LOM protection performance studies, consider only a single generator within the islanded part of the network. While historically such approach was reasonable, rapidly increasing numbers of DG connections lead to high probability of islanding with more than one generator in the mix. Therefore, this paper, considers various mixes of generation to investigate how this impacts LOM detection performance. In particular studies are undertaken with a few identified most likely combinations of distributed generators.

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Tzelepis D, Dysko A. Impact of distributed generation mix on the effectiveness of islanded operation detection. 2015. Paper presented at Sixth Protection, Automation and Control World Conference (PAC World 2015), Glasgow, United Kingdom.