Abstract
For energy sustainability, the integrated energy distribution system (IEDS) is an efficient and clean energy system, which is based on the coordinated operation of a power distribution network, a gas distribution network and a district heating system. In this paper, considering the damage of natural disasters to IEDS, a demand management strategy is proposed to improve resilience of IEDS and ensure stable operation, which is divided into three stages. In the first stage, the electricity, natural gas and thermal energy are co-optimized in the simulating fault state to develop the importance ranking of transmission lines and gas pipelines. In the second stage, the natural disasters are classified as surface natural disasters and geological natural disasters. According to the types of natural disasters, the demand management strategy includes semi-emergency demand management scheme and full-emergency demand management scheme in the electrical resilience mode and the integrated resilience mode, respectively. In the third stage, the non-sequential Monte-Carlo simulation and scenario reduction algorithm are applied to describe potential natural disaster scenarios. According to the importance ranking of transmission lines and gas pipelines, a demand management strategy is formulated. Finally, the proposed strategy is applied on an IEEE 33-bus power system and a 19-node natural gas system. Its effectiveness is verified by numerical case studies.
Highlights
With the development of society and economy, predatory energy consumption has caused environmental pollution [1] and energy crisis [2]
The natural disasters are classified as surface natural disasters (SNDs) and geological natural disasters (GNDs)
The major contributions of this paper are summarized as follows: (1) Aiming at improving the integrated energy distribution system (IEDS) resilience, this paper proposes a demand management strategy, which innovatively expands the traditional demand management in the power system
Summary
With the development of society and economy, predatory energy consumption has caused environmental pollution [1] and energy crisis [2]. The integrated energy distribution system (IEDS) [3,4] takes full account of electricity, natural gas, heat and other forms of energy coupling. Jiangsu Province was hit by a typhoon in 2016, which caused two 500-kV transmission lines, four 220-kV transmission lines, and eight 110-kV transmission lines to trip and left many customers without power [7]. In this regard, it is necessary and exigent to enhance the IEDS resilience.
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