Frequency amelioration of an interconnected microgrid system

Abstract

This article validates the operational effectiveness of a fuzzy-based multistage cascaded proportional integral derivative fractional filter (PIDFN) controller which enhances the frequency regulation of an interconnected islanded microgrid system. The effect of the ambiguous nature of renewable energy resources and test cases concerning different load variations are applied to verify the robustness of the proposed controller. The superiority of the proposed controller upon proportional-integral-derivative (PID), fractional-order PID (FOPID), and Fuzzy FOPID controller in minimizing frequency alteration has been verified through MATLAB/SIMULINK environment.

Keywords

• renewable energy sources
• wind turbine generator system
• diesel engine generator system
• fuel cell
• ultracapacitor
• fractional-order pid controller
• proportional-integral-derivative filter constant