Hardware implementation of a microgrid controller for enhancing dynamic voltage stability

This paper presents the dynamic voltage stability analysis of a 4-bus micro grid set-up with the implementation of the MicroGrid Voltage Stabilizer (MGVS). Dynamic voltage stability analysis of microgrid systems using MGVS was introduced in the literature on simulation level. However, implementation of the controller at hardware level have not been accomplished. This paper provides detailed information on implementing the MGVS to a 4-bus microgrid set-up and improvements on overall dynamic voltage stability. The implementation is performed in a lab environment using LabVolt and Texas Instruments equipment, along with MATLAB/Simulink interface. Several case studies are performed and relevant graphs showing the dynamic voltage stability analysis of the system data are presented in this paper. The 4-bus micro grid system is also simulated using the MATLAB based Power System Analysis Toolbox (PSAT). Furthermore, comparison between hardware and software results are presented and it validates the successful implementation of the MGVS.