Open AccessWind energy conversion system based on open‐end winding three‐phase PMSG coupled with ac−dc buck‐boost converter
Author(s) -
Abdelsalam Ibrahim,
Alajmi Bader N.,
Marei Mostafa I.,
Alhajri Mohamed F.
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.8168
Subject(s) - converters , electrical engineering , inverter , commutation , power (physics) , power factor , three phase , computer science , boost converter , capacitor , voltage , ćuk converter , topology (electrical circuits) , control theory (sociology) , engineering , physics , control (management) , artificial intelligence , quantum mechanics
This study proposes a new back‐to‐back (BTB) current source converter (CSC) configuration and presents its application for variable speed wind energy conversion system. The proposed configuration consists of three cascaded ac−dc non‐inverting buck‐boost converter. The ac side of each converter is connected to an open‐end winding of the three‐phase permanent magnet synchronous generator and the dc sides are connected in parallel to a current source inverter (CSI) without the need for a dc‐side capacitor. Ac−dc converters operate under discontinuous conduction mode, and they draw sinusoidal input currents at the unity power factor from fixed or variable magnitude and frequency supply. In addition, the proposed BTB CSC addresses one of the main drawbacks of the conventional CSI which is the over‐voltage experienced by switches during commutation. Moreover, the switching losses of the proposed CSI are eliminated. The ElectroMagnetic Transients including DC (EMTDC)/Power System Computer Aided Design (PSCAD) software is used to assess the feasibility of the proposed topology during normal operating conditions and during low voltage ride through.