The integration of digital secondary system (DSS) technology in substation protection and control represents a pivotal advancement in power system design and operation, opening the door to an array of benefits. However, there is still a significant demand for additional real-world data that contrast the practical benefits and challenges of a DSS when compared to conventional systems.
On September 7, 2023, One Power Company (One Power), located in Findlay, Ohio, completed the constructing, commissioning, and energizing of their first substation, utilizing a point-to-point (P2P) digital protection and control architecture for high-volume power connections. This substation has created a valuable data set for the application of DSSs. Since its inception, the company has continued successful commercial operation of the substation with plans to fully embrace DSS technology and help pioneer further adoption and implementation across the industry.
This paper reviews the company’s design, implementation, and operation of a purpose-built and in-service DSS substation that utilized a P2P process bus solution. The paper discusses why the engineers of the company selected this DSS architecture, which commissioning and operating strategies were utilized, and what benefits and challenges were realized throughout the project. The paper also covers their vision to drive innovation in the deployment of future DSS installations.