Integrated micro-generation, load and energy storage control functionality under the multi micro-grid concept

• Published in: Electric power systems research 2013-02, Vol.95, p.292-301
• Main Authors: Vasiljevska, J., Peças Lopes, J.A., Matos, M.A.
• Format: Article
• Language: English
• Subjects: Active network management; Applied sciences; Direct energy conversion and energy accumulation; Electrical engineering. Electrical power engineering; Electrical machines; Electrical power engineering; Energy accumulation; Exact sciences and technology; Inter-temporality; Microgrid; Miscellaneous; Multi microgrid; Power networks and lines; Pseudo-dynamic optimisation; Regulation and control; Substations
• ISSN: 0378-7796; 1873-2046
• DOI: 10.1016/j.epsr.2012.09.014

► We present control functionality used to manage microgeneration, active load and energy storage. ► The functionality deals with medium voltage network overloads and excessive voltage drops. ► A pseudo-dynamic optimisation problem is addressed under decentralised network structure. ► The functionality is to be integrated in the distribution network operation and planning. ► A set of technical and economic benefits may be assigned to the distribution system operator. Large scale integration of micro-generation, together with active loads and energy storage devices, under micro-grid and multi micro-grid concepts, requires the adoption of advanced control strategies at different distribution network levels. This paper presents advanced control functionality to be housed at high voltage (HV)/medium voltage (MV) substations and to be used to manage micro-generation, active loads and energy storage, subject to different constraints. Some of these constraints involve inter-temporal relations, such as the ones related with energy storage levels in consecutive time moments. This functionality is specially oriented to deal with stressed MV network operation involving overload and excessive voltage drops situations.