CRUZ, A. F.; CRUZ, Alan de Farias.
Abstract:
The IEC 61850 is the new substation communication protocol; it provides standard
input/output messages between intelligent Electronic Device - (IED). The electrical signals
from the substation equipments were replaced by digital information, controlled and
managed by a substation automation System - SAS.
The 61850 protocol defines a communication model to allow IEDs from different
vendors to interact with each other without a protocol conversor.
To generate tests that contemplate the communication involving IEDs is a non trivial
task. Substation automation Systems have a concurrent nature - messages can be sent or
received at the same time. The many configurations that can occur need to be tested to
grant a satisfying performance.
It was created a technique based on Model-Based Testing for test generation used in
environments using the 61850 standard, based on substation specification and tests
selection criteria.
The generated test cases contain actions executed by the LN described in topology in
an integrated approach. The case study used for these experiments contains the main LN
involved in a IEC 61850 substation.
The number of generated test cases depends on the actual configuration of the
substation. For isolated components, the test case number varies from 4 to 30.000, and
using a integrated approach, the number can reach over 500.000, thus needing a tool for test
selection criteria.
