Energies 2013, 6(7), 3405-3421; doi:10.3390/en6073405
Article

Operation and Control of a Direct-Driven PMSG-Based Wind Turbine System with an Auxiliary Parallel Grid-Side Converter

School of Electrical Engineering, Southeast University, No. 2 Sipailou, Nanjing 210096, China
* Author to whom correspondence should be addressed.
Received: 28 March 2013; in revised form: 27 June 2013 / Accepted: 1 July 2013 / Published: 12 July 2013
(This article belongs to the Special Issue Wind Turbines 2013)
PDF Full-text Download PDF Full-Text [544 KB, uploaded 12 July 2013 15:56 CEST]
Abstract: In this paper, based on the similarity, in structure and principle, between a grid-connected converter for a direct-driven permanent magnet synchronous generator (D-PMSG) and an active power filter (APF), a new D-PMSG-based wind turbine (WT) system configuration that includes not only an auxiliary converter in parallel with the grid-side converter, but also a coordinated control strategy, is proposed to enhance the low voltage ride through (LVRT) capability and improve power quality. During normal operation, the main grid-side converter maintains the DC-link voltage constant, whereas the auxiliary grid-side converter functions as an APF with harmonic suppression and reactive power compensation to improve the power quality. During grid faults, a hierarchical coordinated control scheme for the generator-side converter, main grid-side converter and auxiliary grid-side converter, depending on the grid voltage sags, is presented to enhance the LVRT capability of the direct-driven PMSG WT. The feasibility and the effectiveness of the proposed system’s topology and hierarchical coordinated control strategy were verified using MATLAB/Simulink simulations.
Keywords: permanent magnet synchronous generator (PMSG); low voltage ride through (LVRT); active power filter (APF); grid fault

Article Statistics

Load and display the download statistics.

Citations to this Article

Cite This Article

MDPI and ACS Style

Wu, Z.; Dou, X.; Chu, J.; Hu, M. Operation and Control of a Direct-Driven PMSG-Based Wind Turbine System with an Auxiliary Parallel Grid-Side Converter. Energies 2013, 6, 3405-3421.

AMA Style

Wu Z, Dou X, Chu J, Hu M. Operation and Control of a Direct-Driven PMSG-Based Wind Turbine System with an Auxiliary Parallel Grid-Side Converter. Energies. 2013; 6(7):3405-3421.

Chicago/Turabian Style

Wu, Zaijun; Dou, Xiaobo; Chu, Jiawei; Hu, Minqiang. 2013. "Operation and Control of a Direct-Driven PMSG-Based Wind Turbine System with an Auxiliary Parallel Grid-Side Converter." Energies 6, no. 7: 3405-3421.

Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert