Research and Application of OSU Technology in Smart Grid Networking

Abstract

In response to the new requirements for low latency and flexible scheduling posed by the massive volume of services during the digital transformation of smart grids, this paper investigates the impact of next-generation Optical Service Unit (OSU) technology on communication capabilities in real-world network deployments. Field verification was conducted using the backbone communication network of a prefectural-level power grid, and systematic testing of key performance indicators was performed through the deployment of core aggregation equipment. The test results confirmed that OSU technology can achieve fine-grained, unified transport of services at various speeds; utilizing an in-band signaling negotiation mechanism to enable lossless dynamic adjustment of service bandwidth, ensuring that no packet loss or service interruptions occur during the adjustment process; simultaneously, the physical hard-pipe characteristics significantly reduce transmission latency, meeting the stringent requirements of real-time power generation services. The study confirms that OSU technology, with its fine-grained, hard-pipe, and low-latency characteristics, effectively resolves the scheduling bottlenecks of traditional transmission networks and provides highly reliable communication support for the construction of new power systems.