The optimal power control of doubly-fed variable speed constant frequency (DFVSCF) wind power generator

With the purpose of improving the operation efficiency of wind power generator, this paper, by analyzing the doubly-fed induction generatorpsilas (DFIG) power characteristic, built up the DFIG active power reference calculation model to achieve the maximal power point tracing (MPPT) and the reactive power reference calculation model to minimize generator loss. The stator flux-linkage oriented vector control strategy was used to achieve the decoupled regulation of active and reactive power. Simulation studies were performed for verification.