Control of a Four-Leg Converter for the Operation of a DFIG Feeding Stand-Alone Unbalanced Loads

Gonzalo Carrasco, Cesar A. Silva, Ruben Pena, Roberto Cardenas
2015 IEEE transactions on industrial electronics (1982. Print)  
This paper presents a topology for a three--phase generation system for an isolated unbalanced load fed by a doubly fed induction generator with a neutral wire to include single-phase loads. The challenges of unbalanced loads connected to the system are presented along with a proposal for mitigating current imbalance by employing a four-leg rectifier. The proposed compensation method is based on the sequence decomposition analysis, and thus, it is based on previous works that use current
more » ... in double synchronous reference frames. Nevertheless, a conceptual analysis is presented that vindicates the use of resonant controllers in the stationary abc frame.
doi:10.1109/tie.2014.2364155 fatcat:kgffwaznoff4dit2ujit6qhsye