Open AccessTopologies and control of low‐frequency alternating current for offshore wind farms based on modular multilevel matrix converter
Author(s) -
Yuan Chang,
Zhou Ruibing,
Tong Ming
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.8903
Subject(s) - offshore wind power , modular design , network topology , current (fluid) , control (management) , control theory (sociology) , computer science , wind power , topology (electrical circuits) , electrical engineering , engineering , operating system , artificial intelligence
As a new alternative to power transmission, low‐frequency alternating current (LFAC) transmission system has a bright future for offshore wind power transmission. As a core equipment for LFAC system, modularised multi‐level matrix converter (M3C) is a direct electric energy conversion device, which can achieve bi‐directional power flow and provide any value of the power factor. In this study, the application of LFAC transmission system based on M3C (M3C‐LFAC) for offshore wind farms is studied. For the characteristics of LFAC transmission system for offshore wind power, four types of LFAC offshore wind power grid‐connected topological structure are proposed, and related control strategies are designed. By use of PSCAD/EMTDC to verify the feasibility of the proposed schemes, the advantages of the proposed topologies are verified through different working conditions.