Stability norms control using the virtual impedance concept for power frequency applications

Research output: Contribution to conferencePaper

Abstract

In small-signal stability studies, various stability criteria have been proposed based on impedance or admittance norms to assess the stability of power systems. Controlling these norms can drag a system from a stable to an unstable operating condition. Therefore, finding a control variable that has a direct linear relation with these norms will facilitate the utilisation of data-driven control principles to build a control system based on small-signal impedance. For a STATCOM connected to a power network, the control system parameters of the STATCOM are tested to identify their relationships with the stability norms. Different types of virtual impedance are tested, and the suitability of each virtual impedance type and connection is examined and presented.

Conference

Conference19th International Symposium Power Electronics
Abbreviated titleEe2017
CountrySerbia and Montenegro
CityNovi Sad
Period19/10/1722/10/17
Internet address

Fingerprint

Control systems
Stability criteria
Drag
Static synchronous compensators

Keywords

  • statcom
  • control parameters
  • virtual impedance
  • small signal impedance

Cite this

Abojlala, K. I., Holliday, D., & Xu, L. (2017). Stability norms control using the virtual impedance concept for power frequency applications. 1-6. Paper presented at 19th International Symposium Power Electronics, Novi Sad, Serbia and Montenegro.
Abojlala, Khaled Issa ; Holliday, Derrick ; Xu, Lie. / Stability norms control using the virtual impedance concept for power frequency applications. Paper presented at 19th International Symposium Power Electronics, Novi Sad, Serbia and Montenegro.6 p.
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keywords = "statcom, control parameters, virtual impedance, small signal impedance",
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Abojlala, KI, Holliday, D & Xu, L 2017, 'Stability norms control using the virtual impedance concept for power frequency applications' Paper presented at 19th International Symposium Power Electronics, Novi Sad, Serbia and Montenegro, 19/10/17 - 22/10/17, pp. 1-6.

Stability norms control using the virtual impedance concept for power frequency applications. / Abojlala, Khaled Issa; Holliday, Derrick; Xu, Lie.

2017. 1-6 Paper presented at 19th International Symposium Power Electronics, Novi Sad, Serbia and Montenegro.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Stability norms control using the virtual impedance concept for power frequency applications

AU - Abojlala, Khaled Issa

AU - Holliday, Derrick

AU - Xu, Lie

PY - 2017/10/19

Y1 - 2017/10/19

N2 - In small-signal stability studies, various stability criteria have been proposed based on impedance or admittance norms to assess the stability of power systems. Controlling these norms can drag a system from a stable to an unstable operating condition. Therefore, finding a control variable that has a direct linear relation with these norms will facilitate the utilisation of data-driven control principles to build a control system based on small-signal impedance. For a STATCOM connected to a power network, the control system parameters of the STATCOM are tested to identify their relationships with the stability norms. Different types of virtual impedance are tested, and the suitability of each virtual impedance type and connection is examined and presented.

AB - In small-signal stability studies, various stability criteria have been proposed based on impedance or admittance norms to assess the stability of power systems. Controlling these norms can drag a system from a stable to an unstable operating condition. Therefore, finding a control variable that has a direct linear relation with these norms will facilitate the utilisation of data-driven control principles to build a control system based on small-signal impedance. For a STATCOM connected to a power network, the control system parameters of the STATCOM are tested to identify their relationships with the stability norms. Different types of virtual impedance are tested, and the suitability of each virtual impedance type and connection is examined and presented.

KW - statcom

KW - control parameters

KW - virtual impedance

KW - small signal impedance

UR - http://www.dee.uns.ac.rs/

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Abojlala KI, Holliday D, Xu L. Stability norms control using the virtual impedance concept for power frequency applications. 2017. Paper presented at 19th International Symposium Power Electronics, Novi Sad, Serbia and Montenegro.