Phase-oriented control structure for grid stabilization in symmetrical and asymmetrical grid states
Conference: Internationaler ETG-Kongress 2013 – Energieversorgung auf dem Weg nach 2050 - Symposium 1: Security in Critical Infrastructures Today
11/05/2013 - 11/06/2013 at Berlin, Deutschland
Proceedings: Internationaler ETG-Kongress 2013 – Energieversorgung auf dem Weg nach 2050
Pages: 6Language: englishTyp: PDF
Personal VDE Members are entitled to a 10% discount on this title
Authors:
Heising, Carsten; Schrader, Tim (Avasition, Dortmund, Deutschland)
Staudt, Volker; Steimel, Andreas (Ruhr-Universität Bochum, Bochum, Deutschland)
Menze, Andreas; Lebioda, Thomas Jan (TenneT Offshore, Bayreuth, Deutschland)
Abstract:
More and more power electronics devices can be found in transport and distribution grids. This is mainly a consequence of integrating more and more renewable energy sources. Grid planning and grid codes have to accept these challenges – especially in the case of asymmetrical faults, but also considering grid stability in general. Suitable assessment strategies and control concepts are needed. This paper concentrates on the control of power-electronic converters connected to the grid and pays special regard to asymmetrical faults. It demonstrates in which way a highly dynamic and robust control is achieved also under these conditions. The proposed concept applies phase-wise modelling in converter-oriented coordinates and relies on the concept of pole restraining.