A Development of Flexible Real-time Database Platform of Microgrid Energy Management System for Generation Applications

Recently, there have been more needs of the integrated efficient and systematic microgrid energy management for increasing distributed energy resources (DER). The configuration of microgrid is generally so variant that it is difficult to be standardized. For the fast and complete integration of software applications over each microgrid, a flexible real-time database (RTDB) platform for microgrid energy management system (EMS) is proposed in this paper. On the proposed platform, the existing applications can be easily modified or the new applications can be comfortably developed due to easy building of complex database for applications. Furthermore, the architecture of multihierarchical RTDB and the virtual region of RTDB, so called application common model (ACM) are proposed for multi microgrid. Finally, microgrid EMS is developed based on ACM with integrating IEC 61850 gateway, common information model (CIM) based web interface, and generation applications package. The field tests in two demonstration fields are performed and the results show that the proposed RTDB platform and the generation applications package are effective in the real-time environment.