Power Sharing for Inverters Based on Virtual Synchronous Generator Control

Abstract

<p>Power sharing is the most important challenging today, especially for parallel operation inverters. Recently to fixed this problem the virtual synchronous generator control strategy has been used. This paper introduced the parallel operation of three phase multilevel inverters with different capacities to share load power by used a newly strategy named VSG with droop method controller. The control strategy is used to make the inverters to emulate the transient , dynamic features of conventional synchronous generator and to gives accurate load sharing among the inverters in proportional to their ratings. To verify the performance of the proposed technique MATLAB/Simulink package for simulation experiment is established.</p>

Decentralized Coordination Power Control for Islanding Microgrid Based on PV/BES-VSG

“…(10) Then, the output power of each inverter unit is controlled as shown in (11). (11) State IV: The total load is larger than the sum of the total PVmaximum power and the total battery discharging power limits, as shown in (12). (12) With the condition of (12), the whole microgrid is overloaded,with all PV units operating at MPP and the batteries discharged with the power limits.The inverter enters in PCM, and its output power is controlled as shown in (13).…”

“…So far, the developments of VSG for microgrids are focused on enhancing system stability [9], [10], distributed control of converters [11] for power system and power sharing in microgrids [12].…”