Grid Frequency Control for LCC HVDC Link Connected Wind Farms

Author

Li, R. ; Bozhko, S.V. ; Asher, G.M.

Author_Institution

Univ. of Nottingham, Nottingham

fYear

2007

fDate

5-8 Nov. 2007

Firstpage

1673

Lastpage

1678

Abstract

In this paper we consider the design for the offshore grid frequency control in a DFIG-based wind farm with LCC HVDC link connection. The control approach is based on using the grid frequency to regulate the HVDC DC-link current and hence control the power flow in the system. The dynamic equations are derived and grid frequency controller is designed. The mathematical analysis and the control design are verified through PSCAD simulations. Good modelling agreements are obtained for the closed loop system and the work provides a good basis for wider research investigation into wind farm operation.

Keywords

HVDC power transmission; asynchronous generators; control system synthesis; frequency control; mathematical analysis; power generation control; power grids; wind power plants; DFIG-based wind farm; Doubly-fed induction generator; LCC HVDC link connection; PSCAD simulations; closed loop system; control approach; control design; grid frequency control; grid frequency controller; mathematical analysis; modelling agreements; power flow; Analytical models; Control design; Control systems; Equations; Frequency control; HVDC transmission; Load flow; Mathematical analysis; PSCAD; Wind farms;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, 2007. IECON 2007. 33rd Annual Conference of the IEEE

Conference_Location

Taipei

ISSN

1553-572X

Print_ISBN

1-4244-0783-4

Type

conf

DOI

10.1109/IECON.2007.4460235

Filename

4460235