Effects of VSM convertor control on penetration limits of non-synchronous generation in the GB power system

Richard Ierna, Jiebei Zhu, Andrew J. Roscoe, Mengran Yu, Adam Dysko, Campbell D. Booth, Helge Urdal

Research output: Contribution to conferencePaper

Abstract

2013 saw the presentation of a paper [1][2] to the wind integration workshop, which demonstrated 26 high convertor penetration scenarios, 17 of which introduced a type of instability in RMS models previously unseen by the researchers. It also provided an indication of the constraints necessary if NSG levels where to be limited, potentially placing practical limits on the amount of NSG which could be accommodated. It demonstrated that Synchronous Compensation (SC) could be used to mitigate these and other problems but this is believed to be an expensive solution.
Further publications have demonstrated that convertor instability at high NSG extends beyond RMS models and is believed to occur in real systems [3]. In addition, Swing Equation Based Inertial Response (SEBIR) control, sometimes referred to as "Synthetic Inertia", has been shown to be ineffective as a countermeasure against the instability observed in [1][2] and can in some circumstances make it worse [4][5]. Whilst SEBIR improves RoCoF, its inability to address the wider range of problems resulted in the need for more comprehensive solutions.
Several authors have proposed converters using principles aligned with VSM and VSM0H concepts and controllers using these concepts exist within marine power networks.
This paper returns to the studies presented in [1][2], which used a reduced 36 node GB model in PowerFactory (PF). However here, some of the convertors are replaced with VSM convertor models described in [6] to investigate the effects on Instantaneous Penetration Level (IPL) limit of NSG in terms of transient stability and steady-state stability. These and further results presented demonstrate the potential of VSM, in mitigating the effects of various challenges associated with high NSG, potentially allowing 100% penetration.

Workshop

Workshop15th Wind Integration Workshop
CountryAustria
CityVienna
Period15/11/1617/11/16
Internet address

Fingerprint

Controllers
Compensation and Redress

Keywords

  • non synchronous generation (NSG)
  • virtual synchronous machine (VSM)
  • converter control
  • penetration level limit
  • power system stability

Cite this

Ierna, R., Zhu, J., Roscoe, A. J., Yu, M., Dysko, A., Booth, C. D., & Urdal, H. (2016). Effects of VSM convertor control on penetration limits of non-synchronous generation in the GB power system. Paper presented at 15th Wind Integration Workshop, Vienna, Austria.
Ierna, Richard ; Zhu, Jiebei ; Roscoe, Andrew J. ; Yu, Mengran ; Dysko, Adam ; Booth, Campbell D. ; Urdal, Helge. / Effects of VSM convertor control on penetration limits of non-synchronous generation in the GB power system. Paper presented at 15th Wind Integration Workshop, Vienna, Austria.8 p.
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title = "Effects of VSM convertor control on penetration limits of non-synchronous generation in the GB power system",
abstract = "2013 saw the presentation of a paper [1][2] to the wind integration workshop, which demonstrated 26 high convertor penetration scenarios, 17 of which introduced a type of instability in RMS models previously unseen by the researchers. It also provided an indication of the constraints necessary if NSG levels where to be limited, potentially placing practical limits on the amount of NSG which could be accommodated. It demonstrated that Synchronous Compensation (SC) could be used to mitigate these and other problems but this is believed to be an expensive solution.Further publications have demonstrated that convertor instability at high NSG extends beyond RMS models and is believed to occur in real systems [3]. In addition, Swing Equation Based Inertial Response (SEBIR) control, sometimes referred to as {"}Synthetic Inertia{"}, has been shown to be ineffective as a countermeasure against the instability observed in [1][2] and can in some circumstances make it worse [4][5]. Whilst SEBIR improves RoCoF, its inability to address the wider range of problems resulted in the need for more comprehensive solutions. Several authors have proposed converters using principles aligned with VSM and VSM0H concepts and controllers using these concepts exist within marine power networks.This paper returns to the studies presented in [1][2], which used a reduced 36 node GB model in PowerFactory (PF). However here, some of the convertors are replaced with VSM convertor models described in [6] to investigate the effects on Instantaneous Penetration Level (IPL) limit of NSG in terms of transient stability and steady-state stability. These and further results presented demonstrate the potential of VSM, in mitigating the effects of various challenges associated with high NSG, potentially allowing 100{\%} penetration.",
keywords = "non synchronous generation (NSG), virtual synchronous machine (VSM), converter control, penetration level limit, power system stability",
author = "Richard Ierna and Jiebei Zhu and Roscoe, {Andrew J.} and Mengran Yu and Adam Dysko and Booth, {Campbell D.} and Helge Urdal",
note = "This paper was presented at the 15th Wind Integration Workshop and published in the workshop's proceedings.; 15th Wind Integration Workshop ; Conference date: 15-11-2016 Through 17-11-2016",
year = "2016",
month = "11",
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language = "English",
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Ierna, R, Zhu, J, Roscoe, AJ, Yu, M, Dysko, A, Booth, CD & Urdal, H 2016, 'Effects of VSM convertor control on penetration limits of non-synchronous generation in the GB power system' Paper presented at 15th Wind Integration Workshop, Vienna, Austria, 15/11/16 - 17/11/16, .

Effects of VSM convertor control on penetration limits of non-synchronous generation in the GB power system. / Ierna, Richard; Zhu, Jiebei; Roscoe, Andrew J.; Yu, Mengran; Dysko, Adam; Booth, Campbell D.; Urdal, Helge.

2016. Paper presented at 15th Wind Integration Workshop, Vienna, Austria.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Effects of VSM convertor control on penetration limits of non-synchronous generation in the GB power system

AU - Ierna, Richard

AU - Zhu, Jiebei

AU - Roscoe, Andrew J.

AU - Yu, Mengran

AU - Dysko, Adam

AU - Booth, Campbell D.

AU - Urdal, Helge

N1 - This paper was presented at the 15th Wind Integration Workshop and published in the workshop's proceedings.

PY - 2016/11/15

Y1 - 2016/11/15

N2 - 2013 saw the presentation of a paper [1][2] to the wind integration workshop, which demonstrated 26 high convertor penetration scenarios, 17 of which introduced a type of instability in RMS models previously unseen by the researchers. It also provided an indication of the constraints necessary if NSG levels where to be limited, potentially placing practical limits on the amount of NSG which could be accommodated. It demonstrated that Synchronous Compensation (SC) could be used to mitigate these and other problems but this is believed to be an expensive solution.Further publications have demonstrated that convertor instability at high NSG extends beyond RMS models and is believed to occur in real systems [3]. In addition, Swing Equation Based Inertial Response (SEBIR) control, sometimes referred to as "Synthetic Inertia", has been shown to be ineffective as a countermeasure against the instability observed in [1][2] and can in some circumstances make it worse [4][5]. Whilst SEBIR improves RoCoF, its inability to address the wider range of problems resulted in the need for more comprehensive solutions. Several authors have proposed converters using principles aligned with VSM and VSM0H concepts and controllers using these concepts exist within marine power networks.This paper returns to the studies presented in [1][2], which used a reduced 36 node GB model in PowerFactory (PF). However here, some of the convertors are replaced with VSM convertor models described in [6] to investigate the effects on Instantaneous Penetration Level (IPL) limit of NSG in terms of transient stability and steady-state stability. These and further results presented demonstrate the potential of VSM, in mitigating the effects of various challenges associated with high NSG, potentially allowing 100% penetration.

AB - 2013 saw the presentation of a paper [1][2] to the wind integration workshop, which demonstrated 26 high convertor penetration scenarios, 17 of which introduced a type of instability in RMS models previously unseen by the researchers. It also provided an indication of the constraints necessary if NSG levels where to be limited, potentially placing practical limits on the amount of NSG which could be accommodated. It demonstrated that Synchronous Compensation (SC) could be used to mitigate these and other problems but this is believed to be an expensive solution.Further publications have demonstrated that convertor instability at high NSG extends beyond RMS models and is believed to occur in real systems [3]. In addition, Swing Equation Based Inertial Response (SEBIR) control, sometimes referred to as "Synthetic Inertia", has been shown to be ineffective as a countermeasure against the instability observed in [1][2] and can in some circumstances make it worse [4][5]. Whilst SEBIR improves RoCoF, its inability to address the wider range of problems resulted in the need for more comprehensive solutions. Several authors have proposed converters using principles aligned with VSM and VSM0H concepts and controllers using these concepts exist within marine power networks.This paper returns to the studies presented in [1][2], which used a reduced 36 node GB model in PowerFactory (PF). However here, some of the convertors are replaced with VSM convertor models described in [6] to investigate the effects on Instantaneous Penetration Level (IPL) limit of NSG in terms of transient stability and steady-state stability. These and further results presented demonstrate the potential of VSM, in mitigating the effects of various challenges associated with high NSG, potentially allowing 100% penetration.

KW - non synchronous generation (NSG)

KW - virtual synchronous machine (VSM)

KW - converter control

KW - penetration level limit

KW - power system stability

UR - http://windintegrationworkshop.org/vienna2016/

M3 - Paper

ER -

Ierna R, Zhu J, Roscoe AJ, Yu M, Dysko A, Booth CD et al. Effects of VSM convertor control on penetration limits of non-synchronous generation in the GB power system. 2016. Paper presented at 15th Wind Integration Workshop, Vienna, Austria.