Design of series-connected dual-active bridges for integration of wind park cluster into MVDC grids

Author

Stieneker, Marco ; Riedel, Jan ; Soltau, Nils ; Stagge, Hanno ; De Doncker, Rik W.

Author_Institution

E.ON Energy Res. Center, RWTH Aachen Univ., Aachen, Germany

fYear

2014

fDate

26-28 Aug. 2014

Firstpage

1

Lastpage

10

Abstract

The transmission of electrical energy with direct current (dc) is a promising alternative to alternating-current (ac) systems. The collection of energy with medium-voltage dc (MVDC) grids also increases the efficiency. In this paper, a dual-active bridge (DAB) dc-dc converter system for integrating wind turbines (WT) into MVDC grids is presented. Within this approach, the secondary-side bridges are series connected whereas the primary-side bridges are not connected with each other. This provides galvanic isolation between the WT.

Keywords

DC-DC power convertors; HVDC power convertors; HVDC power transmission; bridge circuits; wind power plants; DC-DC converter system; MVDC grid; direct current; medium voltage DC grid; series connected dual active bridge; wind park cluster; Bridge circuits; Power cables; Power transformer insulation; Wind power generation; Wind speed; Wind turbines; DC collector network; Regenerative power; Renewable energy systems; Wind energy;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications (EPE'14-ECCE Europe), 2014 16th European Conference on

Conference_Location

Lappeenranta

Type

conf

DOI

10.1109/EPE.2014.6911036

Filename

6911036