Abstract
This investigation is on wind-diesel standalone microgrid using permanent magnet brushless generators to serve the remote areas with abundance of renewable energy and unavailability of main grid. The permanent magnet synchronous generator (PMSG) based diesel set (DG) and a permanent magnet brushless DC generator (PMBLDCG) based wind generation with a battery storage system (BSS) are used for consistent operation of the microgrid for necessary loads during wind fluctuations. BSS also provides load leveling during load variations. A voltage source converter (VSC) is used for regulating the point of common coupling (PCC) voltage and system frequency with a new control scheme. The least mean logarithmic square (LMLS) based control approach is used for the control of proposed microgrid. It is an adaptive control algorithm based on a logarithmic cost function. It provides reactive power compensation, PCC voltage regulation and harmonics suppression to provide sinusoidal voltage supply during nonlinear and unbalanced load conditions. A model is simulated in MATLAB/Simulink environment using Sim Power System tool box and the performance of the microgrid demonstrated through simulated results and wide range of test results.
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