Nations across the world face the challenge of increasing power production while reducing the carbon footprint.They need to minimize power loss and downtime, harness alternative power sources, and so on.
The numerous challenges facing them have one solution – smart grids.
While smart grids bring improvements in cost and performance, the security of the power grids becomes more complex and risky, calling for a comprehensive and integrated solution
Current electric grid Transmission Generation Customers Distribution
A digital upgrade to the existing electric grid technology that has been quite the same for over 100 years.
Integration of electrical infrastructure with information infrastructure.
Identified as a bigger opportunity than the internet itself.
Various points of power generation communicate with each other and use the shared information to make intelligent decisions.
Smart Grid: An overview Enterprise Systems Web Applications Control Systems Protection Systems Information Infrastructure Electrical Infrastructure AMI DSM OMS GIS Smart Grid Technology Cyber Secure
Communication Switch / Communication Processor Transmission/Distribution Applications Operator training simulator Information Model Manager Communication front end ICCP Server User interface Historical HMI Dashboard Meters Wired I/Os Protective Relays Wired I/Os IEDs RTU/PLC/Protocol Gateway HMI Log Server I/Os SCADA/EMS CONTROL CENTRE Field Devices Other control centers Other control centers Other substations Planning Accounting Asset management Engineering CORPORATE SUBSTATION Power Grid Automation POWER GRID AUTOMATION SYSTEM
Connect directly or indirectly to managed security switches.
To collect security agent information.
To acquire vulnerability patches from a vendor’s server and download them to the corresponding agents.
To manage keys for VPN.
To work as an AAA (Authentication, Authorization and Accounting) server, validating user identifications and passwords, authorizing user access right (monitor, modify data), and recoding what a user has done to controllers.
To collect data traffic pattern and performance matrix from agents and switches.
To collect and manage alarms/events from agents, switches.
To generate access control policies based on collected data and download to agents.
To run complex intrusion detection algorithms at automation network levels.
To generate bandwidth allocation pattern and data prioritization pattern and download them to managed switches.
Security manager sits in the center of the power grid automation network, managing what and how security functions are performed by security agents and QoS functions performed by the managed security switch.
It is misleading to suggest that IT people take the full responsibility for power grid network security including automation and control networks.
Compared with regular IT systems, power automation systems have definite different goals, objectives and assumptions concerning what needs to be protected.
It is necessary to embrace and use existing IT security solutions where they fit, such as communication within a control center, and develop unique solutions to fill the gaps where IT solutions do not work or apply.