Control Dynamics of Adaptive and Scalable Power and Energy Systems for Military Micro Grids

Abstract : Aging transmission and substation infrastructure linking military bases to commercial utility power coupled with aging distribution systems inside the base threatens installation mission readiness. Traditionally, the practice of providing critical facility power contingency has been to install building-dedicated engine generators. However, the presence of these units provides a false sense of security because actual reliability is reduced due to sub-optimal and intermittent loading. A major energy challenge for military installations is to improve their energy security while conforming to Assistant Chief of Staff for Installation Management requirements (mandating reduced economic and environmental impact of installation energy). This report provides a technical explanation of the power electronic and control response challenges associated with the design of an autonomous military installation scalable power system capable of operating independently from the commercial grid for extended periods of time in an emergency. Rather than providing power only to pre-determined mission essential facilities, the micro grid will give the mission commander the ability to dynamically designate and prioritize which facilities receive available power. Implementing a scalable power grid will assure significant enhancement of mission readiness, and as a direct consequence, intelligent system control will enable base personnel to quantify the state of mission readiness.