Abstract
With the smart grid development, advancements in deeply integrated information and communication technology (ICT) provide enhanced system awareness, effective decision-making support and high-performance protection and control (P&C) to improve operational reliably and stability of the modern power systems. To manage the risks relevant to the existing industrial P&C systems, it is of high necessity to develop a methodology of cyber security testing for industrial P&C systems. This methodology will be rolled out to continue to evaluate the risks for the next-generation industrial P&C systems when new ICTs are introduced e.g. IEC 61850. This study summarises the main purpose, scope of work of an innovation project in collaboration with National Grid. This on-going project is to develop such a methodology using the state-of-art real-time digital simulation to conduct hardware-in-the-loop testing.
Highlights
In recent years, research on cyber security for smart grids has shown that intentional attack could bring significant impact to power system reliability and stability
This study summarises the on-going work of developing such a methodology using the state-of-the-art real-time digital simulation (RTDS) to conduct hardware-in-the-loop (HIL) testing with the following technical considerations:
To help understand the system, a model of standard Kundur's two-area four-machine system is implemented in RTDS that includes the high-voltage components, e.g. synchronous generators, transmission lines, circuit breakers, instrumental transformers, power transformers, static load, and plus differential protection and control (P&C) functions
Summary
Research on cyber security for smart grids has shown that intentional attack could bring significant impact to power system reliability and stability. Without a proper understanding of the system and methodology for management of those risks, there is significant potential to lead to a series of power system incidents and even severe system blackouts, which inevitably bring certain or even significant losses to a transmission owner and its stakeholders. In this case, in order to help understand the complex relation between cyber and physical equipment, a fit for purpose cyber physical testbed should be developed for simulating the power system together with physical hardware connected and operated in real time. Determination of vulnerabilities that exist within a system. Design of test scenarios to conduct cyber events and evaluation of their impacts on the reliability, security and safety of network operation for conventional P&C systems as well as IEC-61850 based P&C systems
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