Pneumoelectric interconnection system optimization operation method considering wind power uncertainty

Abstract

The invention discloses a pneumoelectric interconnection system optimization operation method considering wind power uncertainty. The method comprises the steps: building a pneumoelectric interconnection system random optimization operation model through employing the minimization of the total operation cost of a pneumoelectric interconnection system as a target and combining with a set related operation constraint; aiming at the nonlinear power flow equation constraint of a natural gas network, adopting a linearization method for processing; describing the uncertainty of wind power output byusing a scene analysis method, generating a large number of wind power output scenes through a Monte Carlo simulation method, then applying a scene reduction method based on synchronous back substitution elimination to reduce the scenes to obtain a small number of representative scenes, and then converting the random optimization problem of the pneumoelectric interconnection system considering thewind power uncertainty into a mixed integer linear programming problem of a plurality of deterministic scenes to be solved. Under the condition that the wind power output is uncertain, the economicalefficiency and safety of the operation of the pneumoelectric interconnection system and the absorption capacity of the wind power are effectively improved through optimal scheduling.

Description

technical field [0001] The invention belongs to the technical field of optimized operation of integrated energy systems, and in particular relates to an optimized operation method of a gas-electricity interconnection system considering the uncertainty of wind power. Background technique [0002] The uncertainty of wind power generation and the insufficient capacity of the power system to accommodate wind power generation are the main reasons for the frequent occurrence of "abandoned wind" in North China, Northeast my country, Northwest China and other regions. How to effectively alleviate the phenomenon of "abandoned wind" and achieve efficient use of energy is an urgent problem to be solved. In recent years, P2G technology has provided new space for the consumption of renewable energy output. The emergence of power-to-gas equipment can convert excess wind power output into natural gas for storage in the natural gas network and gas storage equipment, thereby effectively red...

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Problems solved by technology

At the same time, accommodating wind power output may lead to problems such as an increase in the overall operating cost of the gas-power interconnection system and increased network loss. Therefore, it is very necessary to conduct research on the optimal operation of the gas-power interconnection system considering the uncertainty of wind power.

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