CONTROL STRETEGY FOR POWER MANAGEMENT IN GRID CONNECTED MICROGRID WITH RENEWABLE ENERGY SOURCES

Renewable energy based Distributed Generators (DGs) play a dominant role in electricity production, to reduce global warming. Emerging potential of distributed generation can be realize using microgrid concept. A microgrid consists of cluster of loads and Renewable Energy Sources (RES) that operate as a single controllable system. The microgrid can operated in standalone and grid connected mode. The objective of this paper is to maintained the constant voltage in AC & DC bus by power management between AC grid, DC sources and load. The droop control algorithm in interlinking bidirectional converter is used to manage the power in microgrid. A microgrid has been modelled and simulated using the Simulink in the MATLAB. The simulation results show that the system can maintain stable operation under the proposed droop control schemes for grid connected mode with variable load condition.