Inertial control in off-shore wind farms connected to AC networks through multi-terminal HVDC grids with VSC: The supergrid(s): HVDC and power electronics, HVDC Grids and hybrid AC/DC systems

• Type: Article in International Conference Proceedings Book
• Date: 2011

Authors

C. L. Moreira (Author) FEUP; Silva, B (Author) FEUP; Soares, FJ (Author) Other; Luis Seca (Author) Other; João Peças Lopes (Author) FEUP

Conference proceedings International

Title: CIGRE 2011 Bologna Symposium - The Electric Power System of the Future: Integrating Supergrids and Microgrids

CIGRE 2011 Bologna Symposium - The Electric Power System of the Future: Integrating Supergrids and Microgrids

Bologna, 13 September 2011 through 15 September 2011

Indexing

Scopus - 0 Citations

Other information

Authenticus ID: P-008-AR2

Abstract (EN): The massive interconnection of offshore Wind Farms (WF) brings challenges for the operation of electric grids. The predicted amount of offshore wind power will lead to a smaller ratio of conventional units operating in the system. Thus, the power system will have less capability to provide fast dynamic regulation. Despite of offshore WF being able to inject power on the AC grid through High Voltage Direct Current (HVDC) convertors, they cannot participate on frequency support by the intrinsic decoupling that DC adoption brings. This paper proposes a control methodology, based on local controllers, to enable the participation of offshore WF in primary frequency control. Additionally, enhancements were made on the Wind Energy Converters (WEC) controller to make them capable of emulating inertial behaviour. Tests were performed in a multi-terminal DC network with two off shore wind farms to assess the feasibility and effectiveness of the concept in a communication-free framework.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6