Preprint Review Version 1 NOT YET PEER-REVIEWED

Enabling Inertial Response of Variable-Speed Wind Turbines: A Survey and New Perspectives

Version 1 : Received: 29 September 2016 / Approved: 29 September 2016 / Online: 29 September 2016 (11:38:53 CEST)

A peer-reviewed article of this Preprint also exists.

Shang, L.; Hu, J.; Yuan, X.; Chi, Y. Understanding Inertial Response of Variable-Speed Wind Turbines by Defined Internal Potential Vector. Energies 2017, 10, 22. Shang, L.; Hu, J.; Yuan, X.; Chi, Y. Understanding Inertial Response of Variable-Speed Wind Turbines by Defined Internal Potential Vector. Energies 2017, 10, 22.

Journal reference: Energies 2017, 10, 22
DOI: 10.3390/en10010022

Abstract

With the rapid development of wind power generations, the inertial response of wind turbines (WTs) are widely concerned recently, which is important for grid frequency dynamic and stability. This paper recognizes and understands the inertial response of type-3 and type-4 WTs from the view of equivalent internal voltage, in analogy with typical synchronous generators (SGs). Due to the dynamic of the equivalent inertial voltage different from SGs, the electromechanical inertia of WTs is completely hidden. The rapid power control loop and synchronization control loop is the main reasons that the WT's inertial response is disenabled. On the basis of the equivalent internal voltage's dynamic, the existing inertia control method for WTs are reviewed and summarized as three approaches from the view of WT's control, i.e. optimizing the power control or synchronization control or both. At last, the main challenges and issues of these inertia controls are attempted to explain and address.

Subject Areas

inertial response; internal voltage; variable speed wind turbines

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