A Novel Whole-View Test Approach for Onsite Commissioning in Smart Substation

The substation is the heart of an interconnected power system. With the development of smart grid, the concept of a smart substation is proposed. The objectives of smart substations are to build an efficient networked information-management platform, increasing the flexibility in the organization and distribution of the information, and greatly enhancing the capabilities of information exchanging and processing in the substation. However, the onsite commissioning of the smart substation is more complex than that of traditional ones, because the digital information is more difficult to measure and a complex networked information flow needs to be testified. In this paper, a novel test approach, based on wireless time synchronization and distributed injection of simulated data, is proposed for the onsite commissioning of the secondary system in a smart substation. The system components are built and tested. Technical issues are solved to satisfy the requirements of onsite commissioning, and the built system has been used for commissioning services of several newly built smart substations.

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