Tunneling Horizontal IEC 61850 Traffic through Audio Video Bridging Streams for Flexible Microgrid Control and Protection

Michael Short,Muneeb Dawood,Fathi Abugchem

doi:10.3390/en9030204

Abstract

In this paper, it is argued that some low-level aspects of the usual IEC 61850 mapping to Ethernet are not well suited to microgrids due to their dynamic nature and geographical distribution as compared to substations. It is proposed that the integration of IEEE time-sensitive networking (TSN) concepts (which are currently implemented as audio video bridging (AVB) technologies) within an IEC 61850 / Manufacturing Message Specification framework provides a flexible and reconfigurable platform capable of overcoming such issues. A prototype test platform and bump-in-the-wire device for tunneling horizontal traffic through AVB are described. Experimental results are presented for sending IEC 61850 GOOSE (generic object oriented substation events) and SV (sampled values) messages through AVB tunnels. The obtained results verify that IEC 61850 event and sampled data may be reliably transported within the proposed framework with very low latency, even over a congested network. It is argued that since AVB streams can be flexibly configured from one or more central locations, and bandwidth reserved for their data ensuring predictability of delivery, this gives a solution which seems significantly more reliable than a pure MMS-based solution.

Highlights

For economic and safety reasons, electricity was generated by large centralized fossil-fueled generators, and transported to consumers via one-way transmission networks, load centers, and distribution networks [1,2,3]
It is proposed that the integration of IEEE time-sensitive networking (TSN) concepts within an IEC 61850 and manufacturing message specification (MMS)/transmission control protocol and internet protocol (TCP/IP) framework provides a flexible and reconfigurable platform capable of overcoming such issues on a smaller microgrid scale
98 Mbps the integral of absolute error (IAE) results for both the audio video bridging (AVB) and user datagram protocol (UDP) enabled control performance remained at a nominal level of 3.194

Summary

Introduction

For economic and safety reasons, electricity was generated by large centralized fossil-fueled generators, and transported to consumers via one-way transmission networks, load centers, and distribution networks [1,2,3]. Recent times have seen the emergence of small- and medium-scaled distributed energy resources (DERs) embedded within the transmission and distribution networks, typically in the form of renewable/sustainable energy generation sources such as biomass-fueled combined heat and power (CHP) plants, wind turbines (WTs), and photovoltaics (PVs). Such technology has the potential to improve reliability and flexibility of the network, without adequate supervisory control, monitoring and reactive supply/demand side management, problems related to grid frequency/voltage control combined with loss of stability and activation of protection systems may arise [4,5].

Methods

Results

Conclusion