Improved finite control set model predictive control for distributed energy resource in islanded microgrid with fault-tolerance capability

In this paper, improved finite control set model predictive voltage (FCS-MPVC) is proposed for the distributed energy resource (DER) in AC islanded microgrid (MG). Typically, MGs have two or more power electronic-based DERs, which ability to maintain a constant at point of common coupling (PCC) as well perform sharing among DERs. Though linear controllers can achieve above-mentioned tasks, they several restrictions such slow transient response, poor disturbance rejection capability etc. The approach uses mathematical converter anticipate response possible switching states every sampling period. dual-objective cost function designed regulate output load current under fault condition. Two-step horizon prediction technique reduces frequency and computational burden algorithm. Performance demonstrated through MATLAB/Simulink simulations single generator (DG) MG non-linear loading conditions. investigated work presents an excellent steady state performance, low overhead, better performance robustness against parametric variations contrast classical controllers. Total harmonic distortion (THD) 0.89% 1.4% respectively illustrated simulation results. Additionally, three-phase symmetrical has been successfully limited acceptable range.