Virtual inertia control of DFIG-based wind turbines for dynamic grid frequency support

X Zhu, Yi Wang, Lie Xu, X Zhang, H Li

Research output: Contribution to conferencePaper

26 Citations (Scopus)

Abstract

This paper investigates virtual inertia control of doubly fed induction generator (DFIG)-based wind turbines to provide dynamic frequency support in the event of abrupt power change. The model and control scheme of the DFIG is analysed. The relationships among the virtual inertia, the rotor speed and the network frequency variation are then investigated. The "hidden" kinetic energy that can be released to contribute to the grid inertia by means of shifting the operating point from the maximum power tracking curve to a virtual inertia control curve is investigated. The virtual inertia control strategy based on shifting power tracking curves of the DFIG is proposed and the calculation method for determining these virtual inertia control curves is presented. A three-machine system with 20 percent of wind penetration is used to validate the proposed control strategy. Simulation results show that by the proposed control strategy, DFIG based wind farms have the capability of providing dynamic frequency support to frequency deviation, and thus improving the dynamic frequency performance of the grid with high wind power penetration.

Conference

ConferenceIET Conference on Renewable Power Generation (RPG 2011)
CountryUnited Kingdom
CityEdinburgh
Period6/09/118/09/11

Fingerprint

Asynchronous generators
Wind turbines
Kinetic energy
Farms
Wind power
Rotors

Keywords

  • asynchronous generators
  • mechanical variables control
  • hidden kinetic energy
  • maximum power tracking curve

Cite this

Zhu, X., Wang, Y., Xu, L., Zhang, X., & Li, H. (2011). Virtual inertia control of DFIG-based wind turbines for dynamic grid frequency support. Paper presented at IET Conference on Renewable Power Generation (RPG 2011), Edinburgh, United Kingdom. https://doi.org/10.1049/cp.2011.0189
Zhu, X ; Wang, Yi ; Xu, Lie ; Zhang, X ; Li, H. / Virtual inertia control of DFIG-based wind turbines for dynamic grid frequency support. Paper presented at IET Conference on Renewable Power Generation (RPG 2011), Edinburgh, United Kingdom.6 p.
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title = "Virtual inertia control of DFIG-based wind turbines for dynamic grid frequency support",
abstract = "This paper investigates virtual inertia control of doubly fed induction generator (DFIG)-based wind turbines to provide dynamic frequency support in the event of abrupt power change. The model and control scheme of the DFIG is analysed. The relationships among the virtual inertia, the rotor speed and the network frequency variation are then investigated. The {"}hidden{"} kinetic energy that can be released to contribute to the grid inertia by means of shifting the operating point from the maximum power tracking curve to a virtual inertia control curve is investigated. The virtual inertia control strategy based on shifting power tracking curves of the DFIG is proposed and the calculation method for determining these virtual inertia control curves is presented. A three-machine system with 20 percent of wind penetration is used to validate the proposed control strategy. Simulation results show that by the proposed control strategy, DFIG based wind farms have the capability of providing dynamic frequency support to frequency deviation, and thus improving the dynamic frequency performance of the grid with high wind power penetration.",
keywords = "asynchronous generators, mechanical variables control, hidden kinetic energy, maximum power tracking curve",
author = "X Zhu and Yi Wang and Lie Xu and X Zhang and H Li",
year = "2011",
month = "9",
doi = "10.1049/cp.2011.0189",
language = "English",
note = "IET Conference on Renewable Power Generation (RPG 2011) ; Conference date: 06-09-2011 Through 08-09-2011",

}

Zhu, X, Wang, Y, Xu, L, Zhang, X & Li, H 2011, 'Virtual inertia control of DFIG-based wind turbines for dynamic grid frequency support' Paper presented at IET Conference on Renewable Power Generation (RPG 2011), Edinburgh, United Kingdom, 6/09/11 - 8/09/11, . https://doi.org/10.1049/cp.2011.0189

Virtual inertia control of DFIG-based wind turbines for dynamic grid frequency support. / Zhu, X; Wang, Yi; Xu, Lie; Zhang, X; Li, H.

2011. Paper presented at IET Conference on Renewable Power Generation (RPG 2011), Edinburgh, United Kingdom.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Virtual inertia control of DFIG-based wind turbines for dynamic grid frequency support

AU - Zhu, X

AU - Wang, Yi

AU - Xu, Lie

AU - Zhang, X

AU - Li, H

PY - 2011/9

Y1 - 2011/9

N2 - This paper investigates virtual inertia control of doubly fed induction generator (DFIG)-based wind turbines to provide dynamic frequency support in the event of abrupt power change. The model and control scheme of the DFIG is analysed. The relationships among the virtual inertia, the rotor speed and the network frequency variation are then investigated. The "hidden" kinetic energy that can be released to contribute to the grid inertia by means of shifting the operating point from the maximum power tracking curve to a virtual inertia control curve is investigated. The virtual inertia control strategy based on shifting power tracking curves of the DFIG is proposed and the calculation method for determining these virtual inertia control curves is presented. A three-machine system with 20 percent of wind penetration is used to validate the proposed control strategy. Simulation results show that by the proposed control strategy, DFIG based wind farms have the capability of providing dynamic frequency support to frequency deviation, and thus improving the dynamic frequency performance of the grid with high wind power penetration.

AB - This paper investigates virtual inertia control of doubly fed induction generator (DFIG)-based wind turbines to provide dynamic frequency support in the event of abrupt power change. The model and control scheme of the DFIG is analysed. The relationships among the virtual inertia, the rotor speed and the network frequency variation are then investigated. The "hidden" kinetic energy that can be released to contribute to the grid inertia by means of shifting the operating point from the maximum power tracking curve to a virtual inertia control curve is investigated. The virtual inertia control strategy based on shifting power tracking curves of the DFIG is proposed and the calculation method for determining these virtual inertia control curves is presented. A three-machine system with 20 percent of wind penetration is used to validate the proposed control strategy. Simulation results show that by the proposed control strategy, DFIG based wind farms have the capability of providing dynamic frequency support to frequency deviation, and thus improving the dynamic frequency performance of the grid with high wind power penetration.

KW - asynchronous generators

KW - mechanical variables control

KW - hidden kinetic energy

KW - maximum power tracking curve

U2 - 10.1049/cp.2011.0189

DO - 10.1049/cp.2011.0189

M3 - Paper

ER -

Zhu X, Wang Y, Xu L, Zhang X, Li H. Virtual inertia control of DFIG-based wind turbines for dynamic grid frequency support. 2011. Paper presented at IET Conference on Renewable Power Generation (RPG 2011), Edinburgh, United Kingdom. https://doi.org/10.1049/cp.2011.0189