Frequent interruptions in the power supply due to the problems in the main grid. A solution has to be provided which overcomes the above mentioned problem and provides an efficient, uninterrupted, power supply independent on the main grid has to be designed. Also these days huge increase in the utilization of renewable energy sources because of their enormous advantages. This research work involves the design of renewable energy power generation system based micro grid system which is coupled at the main grid. In this context, we present the design of a wind power generation unit based on a doubly fed induction generator. This system is complemented by a versatile control strategy that empowers the wind power generation unit to function across multiple modes. In the grid-connected mode, the system offers the flexibility to operate with or without a battery, allowing for precise control over both active and reactive power. Additionally, when transitioning to standalone mode, the system becomes proficient in regulating the frequency and voltage of the network, thereby enhancing its adaptability and utility.