For many years, power network substations relied solely on GNSS (Global Navigation Satellite System) receivers for legacy timing signals to stay synchronised. However, this approach is no longer sufficient due to the increasing importance of utility networks as critical infrastructure. Disruptions to GNSS Timing can lead to the risk of power outages and other operational failures, jeopardising the reliability of the power grid.
Regulators have recognised these timing vulnerabilities associated with GNSS Timing and have mandated the adoption of backup solutions that offer Precision Time Protocol (PTP) for Timing Accuracy, ensuring the uninterrupted operation of the power grid, even in adverse conditions.
What is PTP?
PTP, a technology designed specifically for Network Time Protocol (NTP) synchronisation in packet networks, provides unparalleled timing accuracy. PTP synchronises devices across the network to within nanoseconds, safeguarding against timing vulnerabilities. By adopting PTP as the backup timing solution, power grid operators can have confidence in the reliability of their systems, even in the face of interference, jamming, or spoofing.
The global energy landscape is undergoing a rapid transformation, primarily driven by the increasing adoption of renewable energy sources like solar, wind, and hydro power. Unlike traditional energy sources, these decentralised energy generators produce electricity intermittently, introducing a need for a power grid that’s highly adaptable and responsive to fluctuations in energy supply and demand.
To address this challenge, the traditional one-way distribution network, where electricity flows unidirectionally from large centralised power plants to end consumers, must evolve into a smarter and more dynamic power grid. This next-generation grid is designed to facilitate two-way power flows, enabling homes and businesses not only to consume electricity but also to generate their own power and inject surplus energy back into the grid.
Ensuring the secure and reliable operation of this advanced grid requires continuous real-time monitoring and health assessments. The grid must possess the capability to autonomously scrutinise its own performance, promptly identifying and resolving any potential issues that may arise, such as power outages or equipment failures. Additionally, precise timestamping of measurements is essential for conducting thorough data analysis and optimising the grid’s overall performance. These measures collectively contribute to the grid’s resilience and efficiency, ensuring a stable and uninterrupted supply of electricity to consumers.
The ADVA Solution:
ADVA offers a comprehensive portfolio of synchronisation solutions, allowing utility infrastructure operators to seamlessly migrate their substations to IP-based timing while continuing to support legacy timing signals with PTP.
One standout solution is the SFP-based grandmaster, a compact technology that takes up minimal space. This innovation transforms devices not originally designed for the latest timing technology, enabling them to utilise PTP, the cutting-edge timing technology.
Additionally, ADVA provides ultra-stable time clocks for the network core. These highly reliable clocks form a solid foundation for any timing system, ensuring smooth and accurate operation across the entire timing architecture.
Want to learn more about how ADVA’s solutions can enhance your substation synchronisation in critical infrastructure? Download the Solution Sheet for in-depth insights.
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