Comprehensive evaluation method for peak shaving schemes of gas pipe network and gas storage

Abstract

The invention relates to the technical field of natural gas peak shaving operation, in particular to a comprehensive evaluation method for peak shaving schemes of a gas pipe network and a gas storage. The method comprises the steps of 1, predicting a city gas load: building a city gas load prediction model by adopting an artificial neural network model, and predicting the city gas load subjected to peak shaving by using a differential evolution extreme learning machine algorithm, thereby determining a peak shaving quantity; 2, performing peak shaving optimization on the gas storage: according to previous peak shaving operation experience of the gas storage, fitting out a relational expression of operation parameters of the gas storage and the peak shaving quantity, and obtaining a gas recovery rate of the gas storage under a certain peak shaving quantity; 3, simulating a peak shaving quantity of the pipe network, and obtaining preselected peak shaving schemes; and 4, comprehensively evaluating the peak shaving schemes: comprehensively evaluating different peak shaving schemes to obtain an optimal peak shaving scheme. According to the method, the conditions such as peak gas consumption of users, peak shaving capability of a pipeline, peak shaving capability of the gas storage and the like are comprehensively considered, so that the optimality and scientificity of making and arranging the peak shaving schemes are effectively improved.

Description

technical field [0001] The invention relates to the technical field of natural gas peak-shaving operation, in particular to the technical field of a comprehensive evaluation method for a natural gas transmission pipeline network and a gas storage peak-shaving scheme. Background technique [0002] Since the "Twelfth Five-Year Plan", with the formation of the domestic natural gas backbone pipeline network, in order to meet the growing market demand, my country has actively promoted the construction of underground gas storage, and achieved phased progress. As of the end of 2015, the designed working volume reached 52×108m3, and the future development potential is huge. [0003] At the "junction" of energy transformation, although new energy has made some breakthroughs in utilization technology and economics, it is difficult to become the main energy in the short term, and clean, efficient and convenient natural gas is expected to shoulder the heavy responsibility of the main en...

AI Technical Summary

Problems solved by technology

[0012] However, most of the existing technologies rely on empirical peak regulation, and because the domestic "gas storage-gas pipeline" peak regulation system is in its infancy, the selection of index weights and the inspection and research of indexes are not thorough enough, and there are few reference materials

Therefore, the selection of index weights is too subjective and lacks objective basis.

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