Reactive Power Management of MV Distribution Grid with Inverter-based PV Distributed Generations using PSO Algorithm

This paper presents the reactive power management approach for a medium voltage (MV) distribution grid with inverter-based photovoltaic (PV) distributed generations using a particle swarm optimization (PSO) algorithm. The objective of this research is to control the reactive power flow to support the distribution grid and voltage regulation. The control algorithm is based on centralized reactive power management at the MV distribution grid for allocating the optimal reactive power of each PV distributed generation. The system case consists of a PV system connected to the simple radial feeders in the distributed grid. Simulation studies of the proposed system are built through MATLAB and DIgSILENT PowerFactory software. The simulation results show that the proposed control algorithm is useful for mitigating voltage rise and reverse power flow in the MV distribution grid with the PV generation systems.