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Infrastructure Resilience Conference 2018

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Power System Performance Assessment Considering Fuel Supply System

Power system and natural gas (NG) system are two essential energy supply systems in achieving social wellbeing. They are bi-directionally linked more and more through physical components, such as gas-fired generators and electricity-driven compressors. From this point of view, the traditional approach of viewing power system or natural gas system as a stand-alone system is inadvisable. The internal system complexity, rising interdependence as well as environmental risks resulting from high impact low probability event such as hurricane present challenges to both systems. However, there is still a lack of consideration of this joint impact in a compatible way. This fact urges us to develop an effective model and approach to assess how a power system performs considering fuel supply system during and in the aftermath of a disruptive event. It investigates the impact mechanism of HILP events and establishes combined network analysis modeling with inter-sectoral interdependencies. Besides, this paper takes account of propagation process of power system cascading failures and develops a multi-attribute construct of metrics to evaluate power system performance. Finally, it generates a simulation framework based on Monte Carlo simulation. To validate the effectiveness of the developed approach, this paper conducts case studies on modified Belgian gas transmission system and IEEE-24 reliability test system, as well as Singapore natural gas system and Singapore transmission power system.

Huajun Zhang
Institute of Catastrophe Risk Management, Interdisciplinary Graduate School, Nanyang Technological University
Singapore

Tianyang Zhao
Energy Reserach Institute, Nanyang Technological University
Singapore

Peng Wang
School of Electrical & Electronic Engineering, Nanyang Technological University
Singapore

Shuhan Yao
Institute of Catastrophe Risk Management, Interdisciplinary Graduate School, Nanyang Technological University
Singapore

 

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