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Advisor(s)
Abstract(s)
Currently, power systems (PS) already accommodate a substantial penetration of distributed
generation (DG) and operate in competitive environments. In the future, as the result of the
liberalisation and political regulations, PS will have to deal with large-scale integration of DG and
other distributed energy resources (DER), such as storage and provide market agents to ensure a
flexible and secure operation. This cannot be done with the traditional PS operational tools used today
like the quite restricted information systems Supervisory Control and Data Acquisition (SCADA) [1].
The trend to use the local generation in the active operation of the power system requires new
solutions for data management system. The relevant standards have been developed separately in the
last few years so there is a need to unify them in order to receive a common and interoperable solution.
For the distribution operation the CIM models described in the IEC 61968/70 are especially relevant.
In Europe dispersed and renewable energy resources (D&RER) are mostly operated without remote
control mechanisms and feed the maximal amount of available power into the grid. To improve the
network operation performance the idea of virtual power plants (VPP) will become a reality. In the
future power generation of D&RER will be scheduled with a high accuracy. In order to realize VPP
decentralized energy management, communication facilities are needed that have standardized
interfaces and protocols. IEC 61850 is suitable to serve as a general standard for all communication
tasks in power systems [2].
The paper deals with international activities and experiences in the implementation of a new data
management and communication concept in the distribution system. The difficulties in the
coordination of the inconsistent developed in parallel communication and data management standards
- are first addressed in the paper. The upcoming unification work taking into account the growing role
of D&RER in the PS is shown. It is possible to overcome the lag in current practical experiences using
new tools for creating and maintenance the CIM data and simulation of the IEC 61850 protocol – the
prototype of which is presented in the paper –. The origin and the accuracy of the data requirements
depend on the data use (e.g. operation or planning) so some remarks concerning the definition of the
digital interface incorporated in the merging unit idea from the power utility point of view are
presented in the paper too. To summarize some required future work has been identified.
Description
Keywords
Power system Distributed generation Control & Operation Databases SCADA Communication IEC