Power System Oscillation Characterisation using Wavelets and Trilateration

Project summary

Sources of oscillations on the transmission system can be determined by investigating the transfer of oscillation energy in the network

Name Status Project reference number Start date Proposed End date
Power System Oscillation Characterisation using Wavelets and Trilateration Live NIA2_NESO059 May 2024 Nov 2025

 

Strategy theme Funding mechanism Technology Expenditure
Net zero and the energy system transition NIA_RIIO-2 Network Monitoring £450,000
Summary

Following the direction of the energy flow on the system allows the source of the oscillations to be traced. 
These methods have limitations: it requires good coverage of power management units (PMUs) across the system, determining the time period for calculating the energy flow requires some manual intervention and some oscillation source will absorb energy at certain frequencies, meaning that the energy method cannot be used. 
This project aims to explore potential improvements to energy methods, investigating the application of signal processing techniques to improve accuracy with limited PMU coverage, remove the need for manual intervention and to replace the energy flow direction calculation. 

Benefits

The project outcomes aims to  enable NESO to accurately and actively identify sources of oscillations in real time. By making use of limited PMU coverage, the project will locate oscillation sources and reduce the need for additional PMU installations. It will also reduce reliance on stakeholder data to locate these sources. Furthermore, the project aims improve the accuracy and reliability of location methods through the use of advanced data processing techniques.

ENA smarter networks portal