Early Signs of Oscillations

Project summary

The project aims to develop a real-time sub-synchronous oscillation (SSO) monitoring system to detect and analyse early signs of SSO events, enabling preventive actions. 

Name Status Project reference number Start date Proposed End date Expenditure
Early Signs of Oscillations Live NIA2_NESO121 Mar 2026 Sep 2027 £500,000
Summary

The project aims to develop a real-time sub-synchronous oscillation (SSO) monitoring system to detect and analyse early signs of SSO events, enabling preventive actions. The project will span two years and include three main stages:

  • Stage 1: Analyse historical data to build an event database.
  • Stage 2: Develop a software prototype of early-warning system to detect and track SSO early signs.
  • Stage 3: Test and validate the tool with simulated and real-world data.

Expected outcomes include a prototype software tool for detecting SSO risks and aiding in mitigation. Challenges involve identifying early signs accurately and managing data-sharing complexities among partners, which could affect project progress.

Benefits

The key benefit of the project is to enable NESO and TOs with a real time SSO monitoring and mitigating system, purely based on existing data sources and infrastructures, thus providing a realistic and powerful solution to address the SSO challenges during the energy transition process. More specifically, the benefits include: 

  • Early identification of SSO precursory signs and risks well before they occur, providing sufficient time to respond.
  • Enhancing the understanding of the impact of operational actions (e.g. variation in windfarm outputs, line outages) on the system behaviour and stability. 
  • Enabling preventive actions with real time feedback on the effect of implemented actions on the changes in SSO risks.  
  • Reduced cost of system operation by reduced expensive defensive measures that are unnecessary.

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