NDLI: Analysis, simulation and testing of the ZVRT capability of a wind turbine with a doubly fed induction generator

Content Provider	IET Digital Library
Author	Cai, Enyu Liao, Xiaozhong Dong, Lei Li, Yongzhan Jiao, Chong
Abstract	Zero-voltage ride through (ZVRT) is the extreme case of a low-voltage ride through (LVRT), which represents the optimal grid-connection capability of a wind turbine (WT). Enforcing ZVRT will improve the dynamic performance of a WT under the extreme conditions, and therefore significantly enhance the resiliency of a renewable-rich power grid. Compared with LVRT, there are few research on ZVRT with no field validation been conducted. The feasibility of the ZVRT requirement, especially the 400-ms-level fault-time condition, is not clear yet. The first system-level study including the control strategy, transient analysis, hardware enhancement strategy, WT modelling and field test on the ZVRT capability of a Type-3 WT is presented in this study. Particularly, to meet the challenging technical requirements, the authors proposed a hardware enhancement strategy, which accommodates with the widely-used LVRT control approach. The holistic strategy is tested under the extreme grid-connection condition by both simulation and a costly field test. The field test in the 400-ms-level fault-time condition based on an operating WT in a weak power system directly verifies the feasibility and effectiveness of ZVRT for a Type-3 WT. Furthermore, the critical time window and the key parameter ranges during ZVRT, which significantly affect ZVRT performance, are obtained.
Starting Page	2738
Ending Page	2749
Page Count	12
ISSN	17521416
Volume Number	14
e-ISSN	17521424
Issue Number	Issue 14, Oct (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rpg/14/14
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2019.1315
Journal	IET Renewable Power Generation
Publisher Date	2020-08-06
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	400-ms-level Fault-time Condition Asynchronous Generator Asynchronous Machine Challenging Technical Requirements Control of Electric Power System Control Strategy Costly Field Test Doubly Fed Induction Generator Dynamic Performance Enforcing ZVRT Extreme Case Extreme Condition Extreme Grid-connection Condition Field Validation Hardware Enhancement Strategy Holistic Strategy Low-voltage Ride LVRT Control Approach Optimal Grid-connection Capability Power Converter Power Generation Fault Power Grid Power Supplies to Apparatus Power Supply Quality Renewable-rich Power Grid System-level Study Transient Analysis Weak Power System Wind Power Plant Wind Turbine Zero-voltage Ride ZVRT Capability ZVRT Performance ZVRT Requirement
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment

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