Design Considerations of Power Management Control Strategies for Micro-grid Systems

The paper outlines the design considerations for electrical microgrid Power Management Model (PMM). Design considerations for decentralized power management control for a microgrid that operates in an isolated mode disconnected from the main power grid is the main focus. An example based in part on a hypothetical scenario of the transformation process of the No Name Key Island, an island in the lower Florida Keys, into a microgrid community serves as a typical scenario to formulate the analysis of optimal power flows and as a consequence the economical dispatch for photovoltaic arrays and diesel generators to meet local power demands. Three stage optimal power flow optimization problem is presented bidding, unit commitment and real time adjustment of optimal power flow for the microgrid. The optimization utilizes simplified models allowing each optimization to be done using linear programming implemented in Matlab.