Spot dynamic prediction scheduling method and system for liquefied natural gas receiving station

Abstract

The invention discloses a spot dynamic prediction scheduling method and system for a liquefied natural gas receiving station. The method comprises the following steps: setting a dynamic prediction scheduling system consisting of a distributed control system, a gas management system terminal and a simulation system platform, inputting the basic information related to the production operation of thereceiving station into a simulation system platform; enabling the simulation system platform to read the sales plan information from the gas management system terminal, enabling the distributed control system to read the production operation information of the receiving station and upload the production operation information to the simulation system platform, and enabling the simulation system platform to deduce and calculate the planned output quantity of each storage tank on that day according to the basic information, the sales plan information and the production operation information of the receiving station; and enabling the gas management system terminal to generate a scheduling plan of the natural gas dynamic spot goods accordingly. In the dynamic spot scheduling plan making process, the mixing ratio of liquefied natural gas of different gas sources and the methane content of the output natural gas are fully considered, and the qualified and stable output gas quality can be ensured.

Description

technical field [0001] The invention relates to the technical field of liquefied natural gas demand forecasting and dispatching, in particular to a spot dynamic forecasting dispatching method and system for a liquefied natural gas receiving station. Background technique [0002] In the LNG (liquefied natural gas) industry chain, the basic function of the receiving station is to receive and unload the long-term supply point of LNG via ocean shipping, store the LNG material in the LNG storage tank after unloading the ship, and store it in the LNG storage tank according to the downstream gas demand. , LNG is gasified and then exported to three types of gaseous users: industrial, civil and gas-fired power plants. At the same time, a small part of LNG is directly transported out in liquid form through LNG tankers. Due to the actual demand for downstream gas peak shaving and unplanned sudden increase in gas consumption, as well as the potential advantages of multi-receiving statio...

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Problems solved by technology

[0006] In view of this, an embodiment of the present invention provides a method, system, and computer-readable storage medium for spot dynamic forecasting and dispatching of liquefied natural gas receiving stations, so as to solve the problem that the existing spot dynamic forecasting and dispatching method of liquefied natural gas receiving stations does not consider different gas sources The mixing ratio of liquefied natural gas and the methane content of exported natural gas have poor technical effects in controlling the quality of exported natural gas

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