Pan Shen

TL;DR: In this article, the adaptive/improved droop control, network-based control methods, and cost-based droop schemes are compared and summarized for active power sharing for islanded microgrids.

TL;DR: In this paper, an enhanced hierarchical control structure with multiple current loop damping schemes for voltage unbalance and harmonics compensation in ac islanded microgrid is proposed to address unequal power sharing problems.

TL;DR: The multiple inner current loop damping schemes are presented, including the virtual positive, virtual negative, and variable harmonic sequence impedance loops for reactive and harmonic power sharing purposes, and the proposed active damping scheme using capacitor current feedback loop of the LCL filter, which shows enhanced damping characteristics and improved inner-loop stability.

TL;DR: In this article, a synchronous reference frame equivalent proportional integral (SRF-EPI) controller in the αβ stationary frame using the parallel virtual resistance-based active damping (PVR-AD) strategy for grid-interfaced distributed generation (DG) systems to suppress LCL resonance was proposed.

TL;DR: In this paper, an active damping based on the capacitor voltage feedback is proposed using the concept of the equivalent virtual impedance in parallel with the capacitor, and a systematic design method for the LCL-LC filtered grid-connected photovoltaic (PV) system is presented.