Single-phase Dynamic Voltage Conditioner control under load variation

Voltage regulation is an important issue for Low Voltage (LV) distribution networks. The voltage in the point of delivery to the end users should be kept within standard limits. The paper deals with a single-phase Dynamic Voltage Conditioner (DVC) able to keep the output voltage at a set value under load variations. A double loop control method, with outer voltage and inner current controller, has been used in order to have a better control on current transient. Proposed control method has been designed with MATLAB and several simulations are presented to verify its performance. The device can be interesting for Distribution System Operators (DSOs) and also within smart grid and micro-grid applications.