In this paper we present a strategic approach for energy management of distributed electric resources in low-voltage networks with special consideration of services for the distribution system operator (DSO). A system comprising Bidirectional Energy Management Interfaces (BEMIs) developed and tested at ISET, carrying out decentralized decisions and grid supervision is introduced. The paper presents operational states and possible applications of the proposed system in the distribution grid as well as a simulation designed for researching the system's behaviour. Finally first results are given on the simulation-based development of an algorithm implementing a new approach for incentive-based voltage control, which is one of the system's advanced applications.
An appropriate infrastructure, or generally an appropriate solution does exactly what is needed - not more, not less. The present article systematically reflects the parameters with impact on the Information and Communication Technology (ICT) infrastructure design. Considering cost and vulnerability of ICT infrastructures, we propose to reconsider the structural parameters of any smart grid system according to the guideline 'as local as possible and as central as needed'. The presented comprehensive methodology departs from the primary requirements of distribution system operation. ICT infrastructure must be able to support these primary requirements. Additional services rendered possible by more complex ICT must have a justifiable cost-benefit ratio. Regulatory barriers hampering efficient ICT solutions are identified and improvement suggestions integrated into the design process. Application of the methodology is illustrated with the example of a German rural distribution system as a case study
In the European FP7 research project BEAMS ( Building Energy Advanced Management System), an advanced and integrated Facility Management System with decentralized hierarchical structure is developed. The system is designed to enhance energy efficiency of facilities and infrastructures of public use and to enable them to provide local and smart grid related energy services by intelligent control and shifting of electric loads and generators (subsystems). Part of the BEAMS system is the so called "interoperability gateway" for monitoring and control of local subsystems. The document at hand presents the development and implementation of the first interoperability gateway prototype as well as an algorithm for scheduling of multiple storage-equipped loads considering boundary conditions as preset operation constraints and peak load limits. The BEAMS system is currently being tested at two sites, namely the campus of the University of Salento, Lecce, Italy and the sporting facility "Camp Nou" of the Futbol Club Barcelona, Spain
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