Recovery and improvement method for electricity-gas comprehensive energy system

Abstract

The invention discloses a recovery and improvement method for an electricity-gas comprehensive energy system. Establishing a network structure topology model of the electricity-gas integrated energy system; determining an initial system operation state under the network structure topology model of the electricity-gas integrated energy system; establishing a power-gas integrated energy system recovery sequence optimization model; and processing according to the recovery sequence to obtain a recovery force parameter of the electricity-gas integrated energy system, obtaining a recovery condition of the electricity-gas integrated energy system, and judging and implementing improvement according to the recovery condition. According to the method, the recovery sequence of the power line and the natural gas pipeline after the large-range fault of the electricity-gas integrated energy system can be obtained, system constructors are guided to repair the power line and the natural gas pipeline according to the obtained recovery sequence, and the power load and the natural gas load in the system are quickly recovered; therefore, the overall recovery capability of the electricity-gas comprehensive energy system is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of electric power system and integrated energy system, and relates to an electric-gas integrated energy system restoration and optimization method, and relates to an electric-gas integrated energy system recovery evaluation and improvement method under the condition of deep coupling between the electric power system and the natural gas system. Background technique [0002] In recent years, the installed capacity of gas turbines has continued to increase, and the power generation of gas turbines has accounted for a large proportion of the total power generation of the power system, making the operation of the power system more dependent on the natural gas system. At the same time, with the introduction of power-to-gas equipment, the gas production of the natural gas system gradually depends on the power load of the power system. However, the interdependent nature of the electric and natural gas systems compli...

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Problems solved by technology

However, these methods only consider the scenario where the power system operates independently, and do not consider the impact of other engineering systems that are tightly coupled with the power system, and the research results in the optimization of restoration methods cannot be effectively applied to integrated energy systems.

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