Power System Security With Cyber-Physical Power System Operation

Oyewole, Peju Adesina; Jayaweera, Dilan

doi:10.1109/access.2020.3028222

Cited by 34 publications

(15 citation statements)

References 54 publications

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“…Attackers may take advantage of the vulnerability to access the network, change the integrity and confidentiality of data, and hence threat the availability of power service. The following vulnerabilities need to be concerned in a smart grid [18, 19, 48–51, 20–27, 37–47, 52, 53]: Physical security: including intelligent devices, SCADA, AMI, EMS, and other critical infrastructures. Security of communication protocol: such as the widely used Internet Protocol (IP) in a smart grid. Security of customer information: private consumer information is vulnerable to attackers. Operation of aged equipment: advanced IT system and outdated equipment coexist in modern power system. Device‐to‐device communication: the state of one device may affect the action of another. Disclosure of confidential information from employees: attackers may take advantage of employee's carelessness and obtain unauthorized messages. …”

Section: Critical Infrastructure Protection and Cps Securitymentioning

confidence: 99%

A survey on policies, modelling and security of cyber‐physical systems in smart grids

Kang

Zhang

Wen

2021

Energy Conversion and Econom

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A more reliable, efficient, and resilient smart grid depends on the applications of advanced information and communication technologies to support new functions and controls. The critical infrastructure of a smart grid consists of some major components such as monitoring, controls, communication protocol and software. The cyber-physical system (CPS), which integrates these components, is an important enabler for the expected transition of the energy system driven by decarbonization, digitalization and decentralization. This paper provides an overview of the policy drivers and barriers for the implementation of CPS in power systems. With the vast deployment of distributed energy resources (DERs), there is increasing demand to model the hardware, software and their interactions in the smart grid environment. This paper reviews the modelling and applications of intelligent CPS for decentralized energy systems. The integration of DERs and the supportive infrastructure make modern power systems more vulnerable and less reliable to external threats such as terrorist intrusion. There are growing concerns over the risk of cyber-attacks in mart grids. This paper surveys the latest progress on critical infrastructure identification and protection, as well as risk assessment and mitigation methods for cyber-attacks. Finally, some advanced issues in cyber-physical energy systems are addressed.

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Section: Critical Infrastructure Protection and Cps Securitymentioning

confidence: 99%

A survey on policies, modelling and security of cyber‐physical systems in smart grids

Kang

Zhang

Wen

2021

Energy Conversion and Econom

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“…Though the integrity of commands and meter data is vital, their effect is commonly restricted to revenue loss. Instead, software integrity is serious since malware or compromised software can control any grid component along with the device [123].…”

Section: Financial Threatsmentioning

confidence: 99%

CPS Attacks Mitigation Approaches on Power Electronic Systems With Security Challenges for Smart Grid Applications: A Review

et al. 2021

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This paper presents an inclusive review of the cyber-physical (CP) attacks, vulnerabilities, mitigation approaches on the power electronics and the security challenges for the smart grid applications. With the rapid evolution of the physical systems in the power electronics applications for interfacing renewable energy sources that incorporate with cyber frameworks, the cyber threats have a critical impact on the smart grid performance. Due to the existence of electronic devices in the smart grid applications, which are interconnected through communication networks, these networks may be subjected to severe cyber-attacks by hackers. If this occurs, the digital controllers can be physically isolated from the control loop. Therefore, the cyber-physical systems (CPSs) in the power electronic systems employed in the smart grid need special treatment and security. In this paper, an overview of the power electronics systems security on the networked smart grid from the CP perception, as well as then emphases on prominent CP attack patterns with substantial influence on the power electronics components operation along with analogous defense solutions. Furthermore, appraisal of the CPS threats attacks mitigation approaches, and encounters along the smart grid applications are discussed. Finally, the paper concludes with upcoming trends and challenges in CP security in the smart grid applications.

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“…represents the set of nodes at the physical layer that can be detected by the scheduling center and meets the following requirements: (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13) According to the information received, the dispatching center takes the minimum load loss as the objective function to carry out an optimization calculation and defines SC(P The dispatching center updates the electrical parameters to the working nodes of the communication layer along with the control instruction. A control information transmission failure occurs when the transmission delay is greater than the threshold MaxT , and the node receiving the control information adjusts the electrical properties according to P j∼ 12 .…”

Section: ) Physical Layer Failure Analysismentioning

confidence: 99%

“…As the energy Internet develops, the scale of power systems expands, and communication construction speed significantly improves. Modern power systems have gradually evolved into a communication coupling network composed of a physical power grid and communication network, or cyber physical power system (CPPS) [1]- [5]. CPPS is used to transfer useful data and control signals between the measurement point and the power system control center.…”

Section: Introductionmentioning

confidence: 99%

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A Cascading Failure Model Considering Operation Characteristics of the Communication Layer

et al. 2021

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The coupling of communication networks plays an indispensable role in modern power systems; however, it also leads to many problems due to cascading failure. Although most current research focuses on the single-layer, non-interacting system and physical layer network, few studies have combined the complex network theory to ignore the influence of communication networks. To address this problem, this paper introduces a cascading failure model of a cyber physical power system (CPPS) that considers the operation characteristics of the communication layer, especially the influence of transmission delay and connectivity on stability control. First, the influence mode of the communication layer failure node acting on the physical layer is analyzed, and the interaction mechanism between the communication layer and physical layer is clarified. Furthermore, the propagation process of failure in the CPPS system is modeled, and the influence of information transmission delay on the stability control process is considered. In this manner, the development process of cascading failure in a CPPS system is described accurately. Finally, according to the loss rate of the physical layer load, the influence of the communication layer node is evaluated to verify the accuracy of the model. This paper also provides a practical model of a CPPS system, which is helpful for building a secure and reliable energy Internet. INDEX TERMS Cascading failure, communication delay, complex network, cyber physical power system, stability control.

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Power System Security With Cyber-Physical Power System Operation

Cited by 34 publications

References 54 publications

A survey on policies, modelling and security of cyber‐physical systems in smart grids

A survey on policies, modelling and security of cyber‐physical systems in smart grids

CPS Attacks Mitigation Approaches on Power Electronic Systems With Security Challenges for Smart Grid Applications: A Review

A Cascading Failure Model Considering Operation Characteristics of the Communication Layer

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