Hardware Solution for LVRT Enhancement Techniques in DFIG – A Review

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Year : 2025 | Volume : 03 | 02 | Page :
    By

    Sudeep Thapaliya,

  • A.H.M.A Rahim,

  1. Assistant Professor, Department of Electrical and Electronic Engineering, United Technical College, Chitwan, Nepal
  2. Professor, Department of Electrical and Electronic Engineering, United Technical College, Chitwan, Nepal

Abstract

With the advancement of wind power technology, penetration of wind power to power systems has increased significantly. Grid codes require that the wind generators should remain connected for specified time even under low voltage conditions. Stricter grid code requirements are now necessary to assure system stability and reliability due to the growing integration of wind power into contemporary power networks, which is being pushed by the quick development of wind energy technology. During low-voltage disruptions, these regulations compel wind turbines to stay connected to the grid for a predetermined amount of time. However, a Doubly Fed Induction Generator (DFIG) is extremely vulnerable to voltage drops since its stator is directly connected to the grid. Electrical failures, thermal loads, and extreme mechanical stress can all be brought on by prolonged or recurrent exposure to such conditions. Many protection and control strategies have been created to overcome these obstacles and allow for efficient Low Voltage Ride Through (LVRT) functionality in DFIG-based wind energy systems.The stator of a doubly fed induction generator (DFIG) is directly connected to the grid, which makes it very sensitive to the dips in grid voltage. Continuous operation of DFIG for multiple dips will lead to different mechanical and electrical system failures. Various protection schemes are proposed by researchers to ensure the continuous and healthy operation of DFIG riding through low voltage (LVRT) conditions. The most recent hardware-based LVRT augmentation methods put out in the literature are thoroughly reviewed in this work. The performance, cost, complexity, and dependability of various protection topologies and the control systems that go with them are all thoroughly examined and contrasted. To provide a comprehensive grasp of each approach’s actual applicability, its advantages and disadvantages are emphasized. In order to help researchers and industry practitioners choose and create efficient hardware solutions for enhancing the LVRT capability and operational resilience of DFIG-based wind power systems, this paper attempts to be a useful resource.

Keywords: Doubly fed induction generator (DFIG), Low voltage ride through (LVRT), Fault current limiter, DC-chopper, Crowbar, Series dynamic braking system, Energy storage.

How to cite this article:
Sudeep Thapaliya, A.H.M.A Rahim. Hardware Solution for LVRT Enhancement Techniques in DFIG – A Review. International Journal of Electrical Power and Machine Systems. 2025; 03(02):-.
How to cite this URL:
Sudeep Thapaliya, A.H.M.A Rahim. Hardware Solution for LVRT Enhancement Techniques in DFIG – A Review. International Journal of Electrical Power and Machine Systems. 2025; 03(02):-. Available from: https://journals.stmjournals.com/ijepms/article=2025/view=234686


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Ahead of Print Subscription Review Article
Volume 03
02
Received 13/10/2025
Accepted 14/10/2025
Published 23/12/2025
Publication Time 71 Days
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