It is also worth noting that because bay-by-bay tests are performed, it is often not possible to evaluate the dynamic behavior of the other bays in the event of a real disturbance due to the lack of modeling of their components and interconnections. It is a very slow and laborious process as they involve the connection and disconnection of several copper cables in the panels, still in the factory.
In other words, the idea is present all the benefits achieved when RTS is applied for relay testing in field and not in laboratory environment only.Ĭurrently, factory acceptance tests (FAT) are carried out using analog signal injection equipment (secondary current and voltage), one bay at time. The purpose of this paper is to propose the use of real Real-Time Digital Simulators (RTS), capable of publishing and subscribing GOOSE and Sample Values messages on the Process Bus, to perform operational tests in SPCS. Substations fully digital could require weeks to test all of its functions, i.e, relay testing is expensive and intelligent choices regarding what we test and how the test must be made. It enables a new horizon of opportunities that a digitalization of signals can offer, such as the implementation of the automation of SPCS operational tests. The implementation of the Process Bus goes far beyond the economics of removing copper cables from substation ducts. We understand that the complete digitalization of a substation involves the application of the Process Bus (IEC 6) for the Substation Protection and Control System (SPCS). In line with this corporate strategy, the CPFL group’s Smart Grids engineering management seeks digital technological solutions with the same purpose in its projects. CPFL (one of the largest companies in the sector of energy in Brazil, seeks digitalization in all its operational processes, aiming at gains such as cost reduction and increase in the quality and productivity of services.
We are currently undergoing a major digital transformation in almost all processes of an electricity distribution company.
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