Modelling and Eigenanalysis of Sub-synchronous Oscillations Excited by Large Wind Power Plants

The amount of power electronic interfaced generation (PEIG) is significantly proliferating in modern cyber-physical energy systems (CPESs). The limited capabilities (e.g. inertia, over-current) of PEIG, together with their location and technology-specific designed control systems, alter the dynamic properties of different types of stability...

Specifications of a Simulation Framework for Virtualized Intelligent Electronic Devices in Smart Grids Covering Networking and Security Requirements

As power system's operational technology converges with innovative information and communication technologies, the need for extensive resilience testing for scenarios covering the electrical grid, networking bottlenecks, as well as cyber security threats, become a necessity. This paper proposes a comprehensive, multi-disciplinary simulation...

Cyber Attacks on Power Grids: Causes and Propagation of Cascading Failures

Towards Real-Time Distinction of Power System Faults and Cyber Attacks

This paper presents a methodology to distinguish between three-phase faults and GOOSE cyber attacks, aimed at opening the circuit breakers in the power grid. We propose a scheme that utilizes Phasor Measurement Unit (PMU)-enabled monitoring of power grid states, and communication network packet logs in the substation. In this scheme, by...

Quantitative Risk Assessment of Cyber Attacks on Cyber-Physical Systems using Attack Graphs

Over the past decade, the number of cyber attack incidents targeting critical infrastructures such as the electrical power system has increased. To assess the risk of cyber attacks on the cyber-physical system, a holistic approach is needed that considers both system layers. However, the existing risk assessment methods are either qualitative in...

Effectiveness of Wide-Area Selective Damping Control in Power Systems with High Shares of Power Electronics

A large contribution to the total share of electricity generated in European power grid will come from renewable sources of energy soon due to European initiative to become carbon neutral. Renewable Energy Sources (RES) are connected to the grid with Power Electronic (PE) devices, which, if not modelled correctly, provide low confidence in...

A Taxonomy and Lessons Learned From Blockchain Adoption Within the Internet of Energy Paradigm

The concept of the internet of energy (IoE) emerged as an innovative paradigm to encompass all the complex and intertwined notions relevant to the transition of current smart grids towards more decarbonization, digitalization and decentralization. With a focus on the two last aspects, the amount of intelligent devices being connected in a...

Perspectives on Future Power System Control Centers for Energy Transition

Today's power systems are seeing a paradigm shift under the energy transition, sparkled by the electrification of demand, digitalisation of systems, and an increasing share of decarbonated power generation. Most of these changes have a direct impact on their control centers, forcing them to handle weather-based energy resources, new...

Critical Components Identification for Cyber-Physical Power Systems Considering Time-Varying Operational States

The security issues of Cyber-Physical power Systems (CPS) have attracted widespread attention from scholars. Vulnerability assessment emerges as an effective method to identify the critical components and thus increase the system resilience. While efforts have been made to study the vulnerability features of power systems under the occurrence...

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...

Cyber Attacks on Power System Automation and Protection and Impact Analysis

Power system automation and communication standards are spearheading the power system transition towards a smart grid. IEC 61850 is one such standard, which is widely used for substation automation and protection. It enables real-time communication and data exchange between critical substation automation and protection devices within digital...

Cyber Attacks on Protective Relays in Digital Substations and Impact Analysis

Power systems automation and communication standards are crucial for the transition of the conventional power system towards a smart grid. The IEC 61850 standard is widely used for substation automation and protection. It enables real-time communication and data exchange between critical substation automation devices. IEC 61850 serves as the...

Reliability Modeling Considerations for Emerging Cyber–Physical Power Systems: Prepared by Task Force on Reliability Consideration for Emerging Cyber-Physical Energy Systems under IEEE PES Reliability, Risk and Probability Applications Subcommittee

Power system operation considering an increasingly complex cyber infrastructure may be one of the key factors of the next generation power systems. The effective operation of a power system in a massively deployed cyber network environment will be affected by cyber network reliability. Therefore, it is vital not only to understand the operation...