`iSSN application frame' - a flexible and performant framework hosting smart grid applications

Resilient operation of novel networked smart grid systems requires for active distribution grid monitoring, management, and control. In order to reduce system complexity and harness fast control interaction, grid-related software applications (e.g., voltage control) are destined to operate directly on a controller in the respective intelligent secondary substation (iSSN). In this paper, we propose a flexible and performant software framework for hosting of smart grid applications - the so called iSSN application frame. It provides means for efficient field measurement access, data preprocessing and representation. As such, it supports simple development and field deployment for such applications. For the iSSN application frame, we developed a set of independent software components for the representation of smart buildings and the distribution grid, as well as a data storage. The components are loosely coupled by a cloud-based middleware, which allows for flexible extension. Thus, the iSSN application frame forms the foundation for the efficient operation of novel distribution grid applications.