Distribution Control Centers in the US and Europe: Commonalities, Differences, and Lessons

Abstract

The distribution control center (DCC) has evolved from a sideshow in the traditional distribution service center to a major centerpiece of the utility moving into the decentralized world. Mostly, this is the place where much of the action is happening due to new forms of energy that are coming into the distribution system. This creates the flexibility of operation and increased complexity due to the need for increased coordination between the transmission control center and DCC. However, the US and European utilities have adapted to this change in very different ways. Firstly, we describe the research works done in a DCC and their evolutions from the perspectives of major US utilities, and those enhanced by the European perspective focusing on the coordination of distribution system operator and transmission system operator (DSO-TSO). We present the insights into the systems used in these control centers and the role of vendors in their evolution. Throughout this paper, we present the perspectives of challenges, operational capabilities, and the involvement of various parties who will be responsible to make the transition successful. Key differences are pointed out on how distribution operations are conducted between the US and Europe.

Optimizing Fault Ride-Through of DGs in Distribution Networks to Preserve Recloser-Fuse Coordination

“…• It has simple implementation since it requires only a conventional short-circuit solver such as [33], [34], without the need of optimization software, e.g., GAMS etc. • Unlike references [25]- [28], which necessitate real-time data transmission from smart meters to DGs during the fault, our proposed approach doesn't demand high data rate; instead, only low-bandwidth communication channels between the DCC and DGs are required, which are commonly available in modern distribution networks [35]. Specifically, the method simply sends optimal current limiting factors to DGs, either periodically, e.g., every hour, or upon request after a network reconfiguration.…”