Post-disaster recovery control method for an elastic power distribution network based on electricity-gas integrated energy system

Abstract

The invention discloses a post-disaster recovery control method for an elastic power distribution network based on an electricity-gas integrated energy system. The method comprises the following steps: carrying out power flow modeling on the network according to a fault part; obtaining an optimal coordination scheme for three post-disaster recovery measure models of network reconstruction, a diesel generator and a gas turbine by taking the lowest post-disaster recovery strategy cost of all recovery load loss quantities as a target; and judging whether the formed microgrid meets a reliability operation condition or not, and if not, moving the MESS according to the optimal path scheme until the formed microgrid meets the reliability operation condition. The invention discloses a post-disaster recovery control method for an elastic power distribution network based on an electricity-gas integrated energy system. Through three optimization strategies of network reconstruction and energy supply of a diesel generator or an MESS and a natural gas network through a gas turbine, the minimum cost of a post-disaster recovery strategy is used as an optimization target, the elasticity of a powerdistribution network is improved, the rescue load loss amount is used as a load constraint condition, and it is guaranteed that the power supply load is rapidly and effectively recovered to the maximum extent.

Description

technical field [0001] The disclosure belongs to the technical field of elastic distribution network system optimization, and in particular relates to a post-disaster recovery control method for an elastic distribution network based on an electric-gas integrated energy system. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] In recent years, with the increase of global temperature and the increasing environmental pollution, extreme weather has occurred frequently. According to statistics, an average of 9.09 typhoons are registered in my country every year. Extreme events such as typhoons, earthquakes, and blizzards will not only cause economic losses, but also threaten people's lives and hinder social and economic development. The use of electric energy has penetrated into all aspects of life. If you want to reduce economic losses, speed ...

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Problems solved by technology

In terms of optimization methods, one type of research uses multi-layer iterative algorithms such as Column-and-Constraint Generation algorithm (C&CG) algorithm or Benders algorithm, another type of research uses the method of solving by modeling solver, and a few The ant colony algorithm and other intelligent algorithms used in the research, the iterative algorithm generally has the problem of complex modeling and difficult convergence, while the intelligent algorithm has the disadvantage of being easy to fall into a local optimal solution

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