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

  1. State Key Laboratory of Advanced Electromagnetic Engineering Technology, Huazhong University of Science and Technology, Wuhan 430074, China
  2. School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Version 1 : Received: 29 September 2016 / Approved: 29 September 2016 / Online: 29 September 2016 (11:38:53 CEST)

How to cite: Shang, L. Enabling Inertial Response of Variable-Speed Wind Turbines: A Survey and New Perspectives. Preprints 2016, 2016090118 (doi: 10.20944/preprints201609.0118.v1). Shang, L. Enabling Inertial Response of Variable-Speed Wind Turbines: A Survey and New Perspectives. Preprints 2016, 2016090118 (doi: 10.20944/preprints201609.0118.v1).

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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