Grid Frequency Control Design for Offshore Wind Farms with Naturally Commutated HVDC Link Connection

Author

Risheng Li ; Bozhko, S. ; Asher, G.M. ; Clare, J.C. ; Yao, Liangzhong ; Sasse, Christian

Author_Institution

Nottingham Univ., Nottingham

Volume

2

fYear

2006

fDate

9-13 July 2006

Firstpage

1595

Lastpage

1600

Abstract

This paper considers the formal design for the offshore grid frequency control in an LCC HVDC connected wind farm. The control paradigm is based on using the grid frequency control to regulate the HVDC rectifier angle and hence control the power flow in the system. The dynamics of the system are derived and a grid frequency controller is designed. The mathematical analysis and the control design are verified through PSCAD simulation. Good modeling agreement is obtained for both open and closed loop systems and the work provides a good basis for wider research investigation into wind farm operation including fault behaviour.

Keywords

HVDC power convertors; closed loop systems; commutation; control system synthesis; frequency control; load flow control; offshore installations; open loop systems; power generation control; power generation faults; power grids; rectifying circuits; wind power plants; HVDC rectifier angle regulation; PSCAD simulation; closed loop systems; fault behaviour; grid frequency control design; line commutated converter; naturally commutated LCC HVDC link connection; offshore wind farms; open loop systems; power flow control; Control design; Control systems; Frequency control; HVDC transmission; Load flow; Mathematical analysis; Open loop systems; PSCAD; Rectifiers; Wind farms; Control; Converter; Double Fed Induction Generator; HVDC; Offshore Windfarm;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, 2006 IEEE International Symposium on

Conference_Location

Montreal, Que.

Print_ISBN

1-4244-0496-7

Electronic_ISBN

1-4244-0497-5

Type

conf

DOI

10.1109/ISIE.2006.295710

Filename

4078325