scholarly journals Europe’s energy policy based on large-scale use of renewables most likely will require supplemental power supplies to balance their electrical power systems

2021 ◽  
Author(s):  
Galina Balatsky ◽  
Richard Holmes ◽  
Jason Haynes
Keyword(s):  
Power Systems ◽  
Energy Policy ◽  
Large Scale ◽  
Electrical Power ◽  
Power Supplies ◽  
Electrical Power Systems

scholarly journals Analysis of cyber vulnerabilities of the emergency control and relay protection to assess the reliability and survivability of electrical power systems in the era of total digitalization

2020 ◽  
Vol 216 ◽  
pp. 01040
Author(s):  
Alexey Osak ◽  
Daniil Panasetsky ◽  
Elena Buzina
Keyword(s):  
Power Systems ◽  
Control Systems ◽  
Large Scale ◽  
Electrical Power ◽  
Relay Protection ◽  
Distribution Networks ◽  
Cyber Attacks ◽  
Small Scale ◽  
Electrical Power Systems ◽  
Emergency Control

Cyber threats pose an increasing threat to energy objects. It is essential to ensure the cybersecurity of automatic control systems, such as relay protection devices (RP), devices of regime control (RC) and emergency control (EC), automated control systems. At the same time, the issues of cybersecurity include not only the problem of hacker attacks, but also the whole complex of problems relating to adequate functioning of cybernetic systems in the power industry. The authors consider two of the most acute aspects of cybersecurity in the energy systems of the future in the era of total digitalization: large-scale prepared cyber attacks on the electrical power systems (EPS) as a whole and large-scale cyber attacks on distribution networks with small-scale generation facilities and active consumers.

scholarly journals Engineering Solutions for Lightning and Surge Protection

2004 ◽  
Author(s):  
Paul Gates
Keyword(s):  
Power Systems ◽  
Electronic Devices ◽  
Electrical Power ◽  
Power Supplies ◽  
Electrical Power Systems ◽  
Variable Speed Drives ◽  
Electrical Systems ◽  
High Penetration ◽  
Automation Control ◽  
Surge Protection

The main objective of this work is to discuss the significant impacts associated with lightning and electrical surges in large, complex electrical power systems. Electrical systems have evolved significantly in the last 10 years resulting in high penetration of electronics for automation, control, and protection. A representative example of this can be readily observed in the migration from single speed motors to VFD or electro mechanical relays to microprocessor based, multifunction relays. These electronic devices are very sensitive to electrical surges, noise and the presence of harmonics caused by a multitude of sources. These sources, such as variable speed drives, computers, electronic light ballasts, and power supplies, are now embedded in our electrical systems and heighten the need for lightning and surge protection. Paper published with permission.

Sign in / Sign up

Export Citation Format

Share Document