Compulsory Islanding Transition Strategy Based on Fuzzy Logic Control for a Renewable Microgrid System

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Parameters</td><td class="align_center">Initial values (unit)</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Phase voltage value of the utility, Usys</td><td class="align_center">220 (V)</td></tr><tr><td class="align_left">Frequency of the utility voltage, f</td><td class="align_center">50 (Hz)</td></tr><tr><td class="align_left">Effective value of voltage sag, Usag</td><td class="align_center">60 (V)</td></tr><tr><td class="align_left">Resistance of simulated load, RL</td><td class="align_center">2 (Ω)</td></tr><tr><td class="align_left">Inductance of simulated load, L</td><td class="align_center">4 (mH)</td></tr><tr><td class="align_left">Inductor of the LC filter, L1</td><td class="align_center">0.4 (mH)</td></tr><tr><td class="align_left">Capacitor of the LC filter, C</td><td class="align_center">20 (μF)</td></tr><tr><td class="align_left">Sampling frequency, fs</td><td class="align_center">10 (kHz)</td></tr><tr><td class="align_left">Voltage closed-loop control factor, Kp</td><td class="align_center">4</td></tr><tr><td class="align_left">Adjustment of voltage control factor, ΔKp</td><td class="align_center">0</td></tr><tr><td class="align_left">Adjustment of voltage reference, ΔU</td><td class="align_center">20 (V)</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Main parameters of simulation.</div>

Mathematical Problems in Engineering

tab4

Table 4

Table 4: Compulsory Islanding Transition Strategy Based on Fuzzy Logic Control for a Renewable Microgrid System 