An Improvement of Stability in Distribution Network by Integrated Photovoltaic-Electric Spring System

Abstract

The electricity grid's distribution system is a crucial component. Power quality issues in the distribution system have received a lot of attention in recent years due to the extensive integration of variable renewable energy generation. Modern digital grid technology, electric spring (ES), has previously been utilised to stabilise voltage and power in a system that relies heavily on unregulated or completely renewable energy sources. To control voltage and power, it has been recommended as a demand-side strategic approach. It has been suggested that electric springs (ES) might be used as a request technology to boost the reliability and efficiency of future power grids that rely heavily on intermittent renewable energies. At now, ES is mostly used for controlling grid voltage and service frequency. This study describes a method for controlling and balancing power in a newly integrated ES and PV system configuration, and it examines how this method may be used to achieve responsive supply equilibrium in electricity distribution networks. The suggested system allows for the maximum amount of collected PV power to be sent to the grid via the ES, while also actively regulating the energy usage of its ES-associated smart load in order to maintain a constant supply-demand power balance. Because the smart-load power associated with the ES follows a suitable usage patterns to adjust for possible forecast failures of the PV power output, battery storage is unnecessary in the suggested architecture. Excellent performance of the suggested design method is demonstrated using Matlab/Simulink simulations.