Control of a full-converter Permanent Magnet Synchronous Wind Generator with Neutral Point Clamped converters during a network fault

Author

Juankorena, Xabier ; Esandi, Iker ; López, Jesús ; Marroyo, Luis

Author_Institution

Dept. of Electr. & Electron. Eng., Public Univ. of Navarre, Pamplona, Spain

fYear

2010

fDate

7-10 Nov. 2010

Firstpage

3203

Lastpage

3209

Abstract

This paper analyses the behaviour of a full-converter wind generation system with a back-to-back conversion structure using Neutral Point Clamped (NPC) converters during network faults. A Permanent Magnet Synchronous Generator (PMSG) is used as the generator. The main problems of this structure during voltage sags are firstly, the accumulation of power in the DC-link due to the reduction of power delivered to grid, and secondly, the control of the neutral point voltage. Three control strategies are proposed with the purpose of optimizing operation under network fault conditions. The characteristics of those strategies with regard to DC-link voltage control, torque variations required of PMSG and neutral point voltage control are also discussed.

Keywords

machine control; permanent magnet generators; power generation control; power grids; power supply quality; synchronous generators; wind power plants; DC link voltage control; full-converter wind generation system; network fault; neutral point clamped converters; permanent magnet synchronous wind generator control; power grid; torque variations; voltage sags; Choppers; Converters; Generators; Reactive power; Software; Torque; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

IECON 2010 - 36th Annual Conference on IEEE Industrial Electronics Society

Conference_Location

Glendale, AZ

ISSN

1553-572X

Print_ISBN

978-1-4244-5225-5

Electronic_ISBN

1553-572X

Type

conf

DOI

10.1109/IECON.2010.5675049

Filename

5675049