A method for comprehensive forecasting and dispatching of network-based lng industry chain

Abstract

The present invention relates to a method for comprehensive forecasting and dispatching of a networked LNG industry chain, which includes the following steps: 1) setting up a comprehensive forecasting and dispatching system for a networked LNG industry chain, including a general adjustment center, a simulation system platform and a trade management platform; the general adjustment center Connect the DCS of each receiving station and transfer station, and the trade management platform connects the GMS of each receiving station and transfer station; the simulation system platform includes the initial parameter database, simulation module, index and report display module, and analysis database; 2) The simulation system platform Various original data are pre-input in the initial parameter database; 3) The simulation system platform collects and updates the data information in the initial parameter database through the DNS of each receiving station and transfer station; 4) The simulation system platform starts the simulation module for simulation deduction; 5) The indicator and report display module displays and outputs the simulation deduction results; 6) The simulation system platform transmits the simulation deduction results to the trade management platform; the trade management platform sends them to the GMS terminals of each receiving station and transfer station to generate a dispatch plan for the station.

Description

technical field [0001] The present invention relates to a method for comprehensive forecasting and dispatching of the LNG (liquefied natural gas) industry chain, in particular to a method for multi-LNG long-term supply points (that is, LNG liquefaction plants), multi-LNG spot points, multi-LNG receiving stations, and multi-LNG transfer stations. , multi-link LNG transport fleet, multi-LNG transshipment fleet preset and dynamic spot, preset and dynamic inter-station transshipment and other multi-link, multi-operation mode network-based LNG industry chain comprehensive forecasting and dispatching method. Background technique [0002] In the LNG industry chain, the basic function of the receiving station is to unload the transport ships from the long-term supply point through the ocean, store the LNG materials in the LNG storage tank after unloading the ship, and gasify the LNG according to the downstream gas demand Afterwards, it is exported to three types of gaseous users: in...

AI Technical Summary

Problems solved by technology

The existing method is dominated by subjective experience, and the analysis and processing of key data are relatively elementary, unable to adapt to the timely and dynamic adjustment of production needs, the predictability of the plan is poor, and the risk of interfering with the normal operation of the receiving station or transfer station is high

However, under the LNG industry chain structure, the management and control of the overall network system, such as spot goods, inter-station transshipment, and transshipment management triggered by dynamic demand, cannot rely on manual analysis.

In addition, under the influence of many natural uncertain factors, it is often difficult to predict a reasonable time window, and it is even more difficult to effectively coordinate the network relationship of multiple receiving stations and multiple transfer stations at the same time, which will cause the storage tank of a certain station to "force the tank". "(Forcing tanks means that the LNG stock is high and it is difficult to fill LNG), while the storage tanks at another station are "empty tanks", and there are transport ships or transshipment ships queuing up at the port, which cannot adapt to the production and operation requirements in a complex environment, etc. , not only reduces asset utilization, but also leads to unacceptable gas supply security risks

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