The grid connected converter control of multi-terminal DC system for wind farms

Author

Lin, Fei ; Ma, Zhiwen ; You, Xiaojie ; Zheng, Trillion

Author_Institution

Sch. of Electr. Eng., Beijing Jiaotong Univ.

Volume

2

fYear

2005

fDate

29-29 Sept. 2005

Firstpage

1021

Abstract

This paper researches the layout of the multi-terminal DC (MTDC) system consisting of several voltage source converters (VSC) in wind farms and presents the control strategy of grid-connected converter. The generator-side converters of MTDC system aggregate the power of wind turbines into a DC grid. Then a grid-side converter inverts the collected power into a three-phase AC electric utility grid. The dynamic model of three-phase VSC is developed at synchronous reference frame with grid voltage. By introducing the decoupling components in control law, the grid-connected VSC controls the DC voltage of MTDC system and the reactive power respectively. The simulation results verify the performance of the proposed method

Keywords

DC-AC power convertors; power grids; reactive power control; voltage control; wind power plants; wind turbines; DC grid; DC voltage control; generator-side converters; grid-connected converter control; multiterminal DC system; reactive power control; three-phase AC electric utility grid; three-phase voltage source converters; wind farms; wind turbines; Aggregates; Control systems; Converters; DC generators; Mesh generation; Power conversion; Power generation; Voltage control; Wind energy generation; Wind farms;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2005. ICEMS 2005. Proceedings of the Eighth International Conference on

Conference_Location

Nanjing

Print_ISBN

7-5062-7407-8

Type

conf

DOI

10.1109/ICEMS.2005.202700

Filename

1574933