Enhancement of DC-Link Protection of PMSG Based Wind Turbine under Network Disturbance by Using New Buck Controller System
Abstract
Protection system for DC-link circuit of back-to-back converter of PMSG (Permanent Magnet Synchronous Generator) based wind turbine is essential part for the system to ride through a network fault in grid system. Voltage on the DC-link circuit can be increased significantly due to power unbalance between stator side converter and grid side converter. Increase of DC-link circuit voltage can lead to a damage of IGBT of the converter and control system failure. In this paper performance enhancement of DC-link protection of PMSG based wind turbine by using new control system of buck converter is proposed. The buck converter is used to control supplied voltage of a breaking resistor to dissipate energy from the wind generator during network disturbance. In order to investigate effectiveness of the proposed DC-link protection system, fault analysis is performed in the simulation study by using PSCAD/EMTDC software program. In addition, comparative analysis between the proposed protection system and the conventional protection system using DC chopper is also performed.
Journal
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- Journal of Mechanics Engineering and Automation
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Journal of Mechanics Engineering and Automation 7 (4), 171-179, 2017
David Publishing Company
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Keywords
Details 詳細情報について
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- CRID
- 1050282813823661568
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- NII Article ID
- 120006763996
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- ISSN
- 21595275
- 21595283
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- IRDB
- Crossref
- CiNii Articles
- KAKEN