A Distributed Energy Management Approach for Autonomous Power Supply Systems

Currently applied autonomous power supplies are designed for specific energy demands and therefore rather inflexible. For an increased user friendliness, allowing attaching and detaching electrical devices without new load calculations, a flexible Power Distribution System is necessary. This can be reached by applying an Energy Management System. A concept for such a system, that is scalable by distributing it to multiple devices, is presented in this work. Reconfiguration, such as changing the load distribution algorithm, can be realized without downtime. This is possible by implementing the concept as an IEC 61499 application. A field demonstrator is set up using embedded controllers, equipped with a network interface. To perform necessary measurement and switching tasks, an interface board is developed. The desired system behavior, a stable operation of a flexible autonomous power supply system, can be achieved in the simulation on PC hardware as well as on the field demonstrator set up.