A data-driven prediction method for ship energy consumption

Abstract

The invention belongs to the technical field of ship energy consumption prediction, and in particular relates to a data-driven ship energy consumption prediction method. The present invention includes obtaining the expected route, departure time and sea state information of the ship; constructing an offline basic model, including the ship's steady-state speed model on the water, the engine power model and the engine fuel consumption model; High-dimensional linear interpolation of the discrete grid matrix; one-dimensional linear interpolation of the discrete grid matrix of the engine fuel consumption model; real-time deduction of the ship energy consumption model. Supported by a set of data matrix, the present invention realizes fast calculation of energy consumption of a ship's long voyage. The data matrix in the method can be obtained in various ways, and it is convenient and quick to replace. The present invention does not affect the idea of ​​the original ship dynamics simulation model, and coexists with the dynamics simulation mode in the actual simulation verification evaluation system, and each is responsible for different types of simulation calculations.

Description

technical field [0001] The invention belongs to the technical field of ship energy consumption prediction, and in particular relates to a data-driven ship energy consumption prediction method. Background technique [0002] With the rapid development of my country's national economy, the pace of globalization in various fields is getting faster and faster. The construction of ship transportation is becoming more and more important to my country's society and economy. The energy consumption of ships is an important factor in the economy of ship transportation, which is directly related to ship transportation. At the same time, ship energy consumption has a greater impact on ship management efficiency and environmental pollution. Therefore, the research and analysis of ship energy consumption has important theoretical research and engineering practice significance, especially in the aspect of ship energy consumption prediction. Effective ship energy consumption prediction has br...

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Problems solved by technology

There are several problems in the above methods: First, excessive reliance on the ship dynamics model, but due to the many links in the ship power energy conversion process and the complex influencing factors, it is difficult to establish an accurate mathematical model, and the model parameters have a great impact on the prediction effect of ship energy consumption , it is impossible to effectively evaluate and predict ship energy consumption; second, the mathematical models of different ships are different, and the method parameter settings of the energy consumption prediction process are also different, resulting in poor versatility of the energy consumption prediction method based on the ship dynamics model; Third, when predicting the energy consumption of a long route (such as a route with a voyage time of several days), the amount of calculation is huge, and the dynamic model has a long cycle of combining the test results to correct the model, sometimes it is difficult to meet the actual ship application requirements

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