Power Flow Control of Hybrid AC-DC Microgrid using Master-Slave Control Technique

Harvesting the maximum possible energy from distributed renewable energy resources makes the modern electric grid more secure and sustainable. Considering that fact, various technological advancements and

government initiatives are initiated to connect this distributed generation (DG) through microgrid to utility grid at point of common coupling. The hybrid AC-DC microgrid is an upcoming trend of microgrid which not

only allows the connection of variable distributed AC and DC resources to utility but also reduces multiple conversions in individual AC or DC microgrid. In this thesis, Master-Slave control technique is proposed for smooth power transfer between AC and DC microgrid. It overcome various problems like voltage, frequency variation and circulating current among various DGs in hybrid AC-DC microgrid and applicable for both grid tied and island mode. A hybrid AC-DC microgrid with proposed control scheme has been modeled using MATLAB simulink and real time digital simulator to verify control scheme for reliable and stable grid operation under various load and supply conditions.