Cascading Failure Propagation in Cyber Physical Power Systems under Extreme Weather Events

Chen, Yu; Zhang, Lijun; Sun, Shijie; Sun, Yuanyuan; Yin, Xiaobo; Wang, Changjiang

doi:10.1109/spies55999.2022.10082533

Cited by 4 publications

(1 citation statement)

References 10 publications

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“…In [21], Cordova-Garcia proposed a load-shedding cascading control algorithm that considered the time delay of the power communication network. The authors of [22] proposed a node state influence matrix to analyze the cascading failures at the beginning of the development process. In addition, a matrix solution method based on the quadratic programming optimization model was given.…”

Section: Related Workmentioning

confidence: 99%

A DRL-Based Load Shedding Strategy Considering Communication Delay for Mitigating Power Grid Cascading Failure

et al. 2023

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Successive failures in power transmission lines can cause cascading failures in the power grid, which may eventually affect large parts of the power grid and even cause the power grid system to go down. Collecting and transmitting primary equipment information and issuing load-shedding action commands in the power grid depend on the power communication network. With the help of the power communication network, we can better observe the situation of the power grid in real time and provide a guarantee for the regular working of the power grid. However, the communication network also has the problem of communication delay causing latency in load-shedding action. On the premise of preserving the key physical properties and operational characteristics of the power grid, this paper uses the IEEE 14 and 30 bus systems as examples to establish a direct current (DC) power flow simulation environment. We establish a communication network model based on the power grid topology and the corresponding communication channels. For the problem of cascading failures occurring in the power grid after transmission line failures, a load-shedding strategy using soft actor-critic (SAC) based on deep reinforcement learning (DRL) was developed to effectively mitigate cascading failures in the power grid while considering the impact of communication delay. The corresponding communication delay is obtained by calculating the shortest communication path using the Dijkstra algorithm. The simulation verifies the feasibility and effectiveness of the SAC algorithm to mitigate cascading failures. The trained network can decide on actions and give commands quickly when a specific initial failure is encountered, reducing the scale of cascading failures.

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Section: Related Workmentioning

confidence: 99%

A DRL-Based Load Shedding Strategy Considering Communication Delay for Mitigating Power Grid Cascading Failure

et al. 2023

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Community-Based Robustness Analysis of Cyber-Physical Systems

Wang,

Wang

2024

2024 International Conference on Artificial Intelligence of Things and Systems (AIoTSys)

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Defense and Attack Game Strategies of Dual-Network Coupled CPPS with Communication Edge Failures

Zhu

Xiao

et al. 2023

Electronics

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With the development of power technology and communication technology, the power grid and power communication network have become interdependent and closely coupled. The load shedding operation of the power grid is an important means to reduce the occurrence of chain faults and ensure the safe and stable operation of the power grid. Based on the transmission of load control services in the communication network, this paper establishes a model for a dual-network coupled cyber physical power system (CPPS). Considering communication edge faults, the associated load capacity of the communication edge and the expected load loss of the power grid are defined. On this basis, the paper proposes a complete information zero-sum game mechanism called “defense attack defense” for communication edge failures, which takes the expected loss of load from the power grid as the benefit. The paper studies the optimal attack and defense game strategies and provides the algorithm implementation process for the three stages of the game. Considering the bandwidth capacity of the communication edge, this paper uses the Dijkstra algorithm or k shortest paths (KSP) algorithm with the cost factor of the communication edge as the weight to plan the main and backup communication channels for multiple load control services. The simulation results show that the game mechanism proposed in this paper can effectively reduce the expected load loss from the power grid and improve the stability of the CPPS.

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Cascading Failure Propagation in Cyber Physical Power Systems under Extreme Weather Events

Cited by 4 publications

References 10 publications

A DRL-Based Load Shedding Strategy Considering Communication Delay for Mitigating Power Grid Cascading Failure

A DRL-Based Load Shedding Strategy Considering Communication Delay for Mitigating Power Grid Cascading Failure

Community-Based Robustness Analysis of Cyber-Physical Systems

Defense and Attack Game Strategies of Dual-Network Coupled CPPS with Communication Edge Failures

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