Grid Synchronization and Injection Control of HRES Power Generation

This paper presents the different approaches of a Hybrid Renewable Energy System (HRES) injection power management. The HRES is connected to the Grid and to the Consumer by using a three-phase system. The two main operation states of the HRES are the Grid connected and OffGrid modes. Two different systems of control and management of the three-phase inverter of the HRES are needed. This inverter is responsible for power exchange between interior part of the HRES, as the PV production and the Storage system, and the external part, as the Three-phase system of HRES and the Consumer. The work describes the method of voltage control in the Off-grid mode, and the current control in the Grid connected mode with voltage synchronization with practical validation.