Early warning and proactive control strategies for power blackouts caused by gas network malfunctions

Fengshuo Yu, Qinglai Guo, Jianzhong Wu, Zheng Qiao and Hongbin Sun ()
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Fengshuo Yu: Tsinghua University
Qinglai Guo: Tsinghua University
Jianzhong Wu: Cardiff University
Zheng Qiao: Tsinghua University
Hongbin Sun: Tsinghua University

Nature Communications, 2024, vol. 15, issue 1, 1-14

Abstract: Abstract There is growing consensus that gas-fired generators will play a crucial role during the transition to net-zero energy systems, both as an alternative to coal-fired generators and as a flexibility service provider for power systems. However, malfunctions of gas networks have caused several large-scale power blackouts. The transition from coal and oil to gas fuels significantly increases the interdependence between gas networks and electric power systems, raising the risks of more frequent and widespread power blackouts due to the malfunction of gas networks. In a coupled gas–electricity system, the identification and transmission of gas network malfunction information, followed by the redispatch of electric power generation, occur notably faster than the propagation and escalation of the malfunction itself, e.g., significantly diminished pressure. On this basis, we propose a gas-electric early warning system that can reduce the negative impacts of gas network malfunctions on the power system. A proactive control strategy of the power system is also formulated based on the early warning indicators. The effectiveness of this method is demonstrated via case studies of a real coupled gas–electricity system in China.

Date: 2024
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DOI: 10.1038/s41467-024-48964-0

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