Control strategy for HVDC interconnected DC-based offshore wind farm

Author

Muyeen, S.M. ; Takahashi, R. ; Murata, T. ; Tamura, J.

Author_Institution

Kitami Inst. of Technol., Kitami, Japan

fYear

2009

fDate

15-18 Nov. 2009

Firstpage

1

Lastpage

6

Abstract

This paper presents a new control strategy for DC-based offshore wind farm connected to onshore AC grid through high-voltage DC (HVDC) system. The offshore wind farm is composed of variable speed wind turbines driving permanent magnet synchronous generators. Each PMSG is connected to the DC bus through a generator side converter unit. The DC voltage of the DC-bus is stepped up using a full-bridge DC-DC converter at the offshore HVDC station. The onshore HVDC station converts the DC voltage to the suitable AC grid voltage. Detailed modeling and control strategy of the overall system are presented. Real wind speed date is used in the simulation study to obtain realistic response. The effectiveness of the control strategy is verified by simulation analyses using laboratory standard power system software package, PSCAD/EMTDC.

Keywords

DC-DC power convertors; HVDC power convertors; HVDC power transmission; offshore installations; permanent magnet generators; power generation control; synchronous generators; wind power plants; wind turbines; AC grid voltage; HVDC interconnected DC-based offshore wind farm; PSCAD-EMTDC; full-bridge DC-DC converter; laboratory standard power system software package; onshore AC grid; permanent magnet synchronous generators; variable speed wind turbines; Control systems; HVDC transmission; Magnetic variables control; PSCAD; Permanent magnets; Power system modeling; Power system simulation; Voltage; Wind farms; Wind turbines; full bridge DC-DC converter; high voltage DC (HVDC); permanent magnet synchronous generator (PMSG); variable speed wind turbine (VSWT); voltage source converter (VSC);

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2009. ICEMS 2009. International Conference on

Conference_Location

Tokyo

Print_ISBN

978-1-4244-5177-7

Electronic_ISBN

978-4-88686-067-5

Type

conf

DOI

10.1109/ICEMS.2009.5382777

Filename

5382777