CIRED 2009 conference papers available

• Utilizing Possibilities of IEC 61850 and GOOSE

  This document describes the utilization of some new features offered by IEC 61850, Communication Networks and Systems in Substations. In particular, the paper looks at how horizontal communication, commonly known as GOOSE communication, between protection and control devices can be used to improve the reliability and performance of the system. Besides describing generic improvements in capacity, performance and reliability, the paper presents a practical GOOSE application, i.e. blocking based busbar protection.

• Increasing Cost-Efficiency of Substation Automation Systems by Centralised Protection Functions

  New legislative and customer oriented requirements pose challenges to substation automation. Technology developed by ABB in cooperation with Tampere University of Technology (TUT) and Fortum Finland addresses these challenges with centralised protection functions. The new concept facilitates easy upgradeability of substations, while still keeping the installation costs low and the reliability of the system high. New value added functionality will also increase the cost-efficiency of the substation, making the refurbishment of substation profitable even before the end of the lifetime of the relaying.

• Performance of Novel Neutral Admittance Criterion in MV-feeder Earth-fault Protection

  New legislative and customer oriented requirements pose challenges to substation automation. Technology developed by ABB in cooperation with Tampere University of Technology (TUT) and Fortum Finland addresses these challenges with centralised protection functions. The new concept facilitates easy upgradeability of substations, while still keeping the installation costs low and the reliability of the system high. New value added functionality will also increase the cost-efficiency of the substation, making the refurbishment of substation profitable even before the end of the lifetime of the relaying.

• Applying modern communication technology to loss-of-mains protection

  The protection of distribution networks is facing new challenges from an increasing amount of distributed generation (DG). Even though current technology provides satisfactory solutions to manage this new situation, loss-of-mains protection (LOM) is still considered problematic. The solution proposed in this paper focuses on the use of a line differential protection relay. It inherently contains a suitable communication channel and provides absolutely selective protection for the feeder. Furthermore, it prevents the feeder relays from false tripping for faults on the neighboring feeder.

• Impacts of quality improvement incentives on automation investments in the Finnish new regulation model

  During the second regulatory period of 2008-2011 incentives are included into the Finnish regulation model which allows higher profits for the network owners for properly allocated network investments leading to lower operation and interruption costs. In this paper the economical benefit and payback time of different automation schemes in two typical Finnish rural medium voltage (MV) distribution feeders are studied. The electricity distribution reliability indices, total outage cost, outage cost saving and payback time for different automation schemes with different numbers and locations of automated distribution substations were calculated.

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• Other Protection and Control Technical Papers
• Substation Automation and Protection
• Relion® protection and control devices