Open Access

ARTICLE

Resilience-Oriented Load Restoration Method and Repair Strategies for Regional Integrated Electricity-Natural Gas System

Keqiang Wang¹, Pengyang Zhao¹, Changjian Wang², Zimeng Zhang¹, Yu Zhang¹, Jia Lu¹, Zedong Yang^2,*

1 Baicheng Power Supply Company, State Grid Jilin Electric Power Co., Ltd., Baicheng, 137000, China
2 School of Electrical Engineering, Northeast Electric Power University, Jilin, 132012, China

* Corresponding Author: Zedong Yang. Email:

Energy Engineering 2024, 121(4), 1091-1108. https://doi.org/10.32604/ee.2023.044016

Received 18 July 2023; Accepted 22 November 2023; Issue published 26 March 2024

Abstract

The rising frequency of extreme disaster events seriously threatens the safe and secure operation of the regional integrated electricity-natural gas system (RIENGS). With the growing level of coupling between electric and natural gas systems, it is critical to enhance the load restoration capability of both systems. This paper proposes a coordinated optimization strategy for resilience-enhanced RIENGS load restoration and repair scheduling and transforms it into a mixed integer second-order cone programming (MISOCP) model. The proposed model considers the distribution network reconfiguration and the coordinated repair strategy between the two systems, minimizing the total system load loss cost and repair time. In addition, a bi-directional gas flow model is used to describe the natural gas system, which can provide the RIENGS with more flexibility for load restoration during natural gas system failure. Finally, the effectiveness of the proposed approach is verified by conducting case studies on the test systems RIENGS E13-G7 and RIENGS E123-G20.

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Keywords

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