Design and control of autonomous hybrid wind solar system with DFIG supplying three-phase four-wire loads Online publication date: Wed, 28-Jul-2021
by G.B. Arjun Kumar; Shiva Shankar; Keshava Murthy
International Journal of Renewable Energy Technology (IJRET), Vol. 12, No. 3, 2021
Abstract: Evaluation of an autonomous hybrid wind solar system energy system feeding into three-phase, four-line loads and an array of batteries. It contains doubly fed induction generator, photovoltaic system and two voltage source converters, i.e., grid side converter (GSC) and rotor side converter (RSC) connected back-to-back at DC-link and are provided with an algorithm for maximum power point tracking. The grid voltage-oriented control algorithm is to maintain a steady DC bus voltage for the GSC and to balance the reactive power at the power grid even the divergence in frequency and voltage can be regulated with this novel approach. The stator voltage-orientated vector control is implemented in the RSC control strategy, effective controlling of active and reactive power at the stator. Model is implemented in MATLAB/Simulink and is presented in different scenarios, e.g., solar irradiation, differing wind velocity, dynamic and unbalanced nonlinear loads with low THD value less than 4%.
Online publication date: Wed, 28-Jul-2021
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