Abstract

In this work Enhanced Phase Lock Loop (EPLL) is applied in wind-DG microgrid for harmonics elimination, load balancing, voltage regulation, and reactive power compensation at point of common coupling (PCC) under various load conditions. As the energy generation by the wind is uncertain and unpredictable therefore Permanent magnet brushless DC generator (PMBLDCG) based wind power generation is combined with a diesel engine driven Synchronous reluctance generator (SyRG) DG-set to increase stability of the system. A battery system (BESS) is attached with voltage source converter (VSC) to provide load leveling during heavy as well as light load conditions and low wind conditions. An incremental conductance technique (INC) is used to capture maximum power point (MPPT) in wind energy conversion system (WECS) during variable wind speeds. The proposed microgrid is demonstrated and simulated in MATLAB environment using Simulink and Sim Power System (SPS) set toolboxes. The performance of the proposed controllers MPPT of WECS through INC and PCC voltage, harmonic elimination, reactive power compensation, load leveling and load balancing by EPLL is validated in this paper.

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