Summary

Large disturbances that affect the power grid over wide areas occur every now and then. These disturbances are usually unpredictable, which often result in interruptions to customers and damages to power system infrastructure followed by a lengthy restoration process. This paper presents findings of an analysis conducted by the C2.21 Working Group of recent years' disturbances, with an aim to investigate the main causes, develop lessons learnt and identify trends and possible remedies and/or containment measures. The analyses suggest that the main causes of the large disturbances analysed can be grouped into 5 categories. The working group has proposed a list of possible remedies in the operations horizon that may help to prevent or reduce the likelihood of their occurrence, and to minimise or reduce the adverse impact on the power system.

Additional informations

Publication type Electra
Reference ELT_279_6
Publication year 2015
Publisher CIGRE
Study committees Power system operation and control (C2)
Working groups WG C2.21
File size 364 KB
Pages number 5
Price for non member 20 €
Price for member Free
Lessons Learnt from Recent Emergencies and Blackout Incidents
Lessons Learnt from Recent Emergencies and Blackout Incidents