Exploiting Ripple20 to Compromise Power Grid Cyber Security and Impact System Operations

Driven by power grid digitalisation, tighter coupling between the cyber and physical layers has introduced cyber security threats. This paper elucidates the emergence and possible consequences of recently identified Information Technology (IT) / Industrial Internet of Things (IIoT) vulnerabilities, i.e., Ripple20, and the threats it poses to...

Incipient Equipment Failure Assessment and Avoidance through Robust Detection Technqiue

Key contributor to normal power grid operations is optimal working of the various power grid equipment/apparatus. Nonoptimal operation of any of this equipment causes power quality problems which can pose great risk to the stability of the grid. Damaged or partially damaged equipment leaves characteristic signatures in the form of current and...

Controlled islanding of power networks based on graph reduction and spectral clustering

Intentional controlled islanding aims to split the power system into self-sustainable islands after a severe disturbance, but prior the uncontrolled network separation. Given its nature (i.e. last resort for blackout prevention), this emergency control technique must be adopted as quickly as possible. This paper proposes a computationally...

The case for coordinated energy storage in future distribution grids

The integration of distributed renewable energy resources in urban power systems requires locally tailored approaches. This study analyses the impact of storage penetration and its coordination in three representative urban areas in Amsterdam: a residential, a business and a mixed area. Results show considerable benefits of storage and its...

Shunt Compensation Design of EHV Double-Circuit Mixed OHL-Cable Connections

This paper deals with the shunt compensation design of long 380kV-50Hz XLPE cables by simulating a double-circuit partially cabled connection with the transmission length of 80km in the Dutch transmission system. The proposed procedure for shunt compensation sizing is fully elaborated in this paper. Four sizing criteria are used to find the...

Modelling, simulation and measurement of fast transients in transformer windings with consideration of frequency-depent losses

On the availability of networks