Microgrid Integration in Kerala Power Grid—A Case Study

Technological developments in Distributed Generators, deregulation of the electricity market, and open access in power sector have made a new dimension to the distribution network. Consequently, microgrid became an inevitable part of the present electrical power system. This paper aims to explore the impact of microgrid integration with the utility grid. A campus electrical network is modeled as the proposed microgrid and central zone of Kerala power system as the utility grid (main grid). A MATLAB based power system software PSAT has been used for the load flow analysis. The objective considered for the simulation of integrated microgrid is to optimize renewable penetration and power loss. In this work, various scenarios are considered and simulated. The proposed microgrid is integrated with the main grid and in each scenario, the system stability; voltage stability, and power flow are examined. The simulation result shows that renewable penetration can be increased by multi-micro grid integration. Reduction in power loss, bidirectional power flow, is the other advantage of microgrid integration. This method offers environmental and economic benefits to the customers and the system becomes more flexible and reliable.