Negative Imaginary Approached High Performance Robust Resonant Controller Design for Single-Phase Islanded Microgrid and Its Voltage Observation on Different Load Condition

Abstract

This paper presents the design of a high performance robust resonant controller for the islanded single-phase microgrid operation on different loads conditions. The design of the controller is done using the results of Negative Imaginary approach. The performance of the proposed controller has been found much effective to track the instantaneous reference grid voltage. The simulation work has been done with the help of MATLAB/SimPower System toolbox. This shows that the proposed controller provides effective control of voltage against the uncertain load conditions.

High-Performance P+Resonant Controller Design for Single-phase Islanded Microgrid

“…But the main problem is that when the MG serves as dynamic loads, the controlled voltage and frequency become unstable. Bairagi et al (2018) proposed negative imaginary-approached resonant controller for single-phase MG voltage control. The main advantage of this controller is its simplicity with having lower-order transfer function and its accuracy of grid voltage tacking.…”