An energy efficiency predictive control system and method for a hybrid ship
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A technology of predictive control and hybrid power, applied in shipbuilding, ship design, hull design, etc., can solve problems such as optimizing speed changes, and achieve the effect of strong working stability, high reliability and simple structure
Active Publication Date: 2022-03-04
WUHAN UNIV OF TECH
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Theoretically, when a ship sails in still water with infinite water depth, there is a stable optimal speed that can minimize the energy consumption of the ship. However, due to the influence of the navigation environment and ship loading conditions, the optimal speed will change accordingly.
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Embodiment 1
[0069] Embodiment 1: An energy efficiency predictive control system for a hybrid ship
[0070] In the example of the present invention, a hybrid ship energy efficiency prediction control system is provided, including: a fuel flow meter 5, a battery management system 3, a shaft power meter 6, a shaft speed meter 7, a Doppler flow meter 9, a depth sounder 10, Meteorological sensor 11, positioning speed measurement module 12, draft sensor 13, gyroscope 14, acquisition card 19, industrial computer 17, the overall composition diagram of the system is as follows figure 1 As shown, the schematic diagram of the system structure is shown in figure 2 shown.
[0071] The type selection of the fuel flow meter 5 is NV-OVAL;
[0072] The type selection of the battery management system 3 is ABMS-EV03;
[0073] The shaft power meter 6 is selected as TQ201H-T;
[0074] The selection of the shaft tachometer 7 is SS7218;
[0075] The selection of the Doppler flow meter 9 is LSH10-1;
[00...
Embodiment 2
[0100] Embodiment 2: A hybrid power ship energy efficiency predictive control method
[0101]The relationship between the mechanical balance and energy conservation of a ship’s navigation is as follows: the changing working conditions of the ship during navigation are complex. In addition to the constant change of the ship’s own speed, navigational environmental factors such as wind, current, and water depth, as well as loading conditions such as draft and pitch angle, etc. Factors are also changing all the time, making the load on the ship's propulsion system constantly changing. Generally speaking, in order to overcome the changes in ship resistance caused by these load changes, the engine in the ship's hybrid power system needs to burn a certain amount of fuel, the battery pack needs to output a certain amount of electric energy, and the hybrid power module generates a certain amount of power. The power transmission of the tank is finally used to turn the propeller and gene...
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Abstract
The invention discloses an energy efficiency prediction control system and method for a hybrid ship. The system of the present invention includes: a fuel flow meter, a battery management system, a shaft power meter, a shaft speed meter, a Doppler flow meter, a depth sounder, a meteorological sensor, a positioning speed measurement module, a draft sensor, a gyroscope, an acquisition card, and an industrial computer. In the method of the present invention, the acquisition card transmits fuel consumption, power consumption, shaft power, shaft speed, channel water flow velocity, channel water depth, wind and wave level, navigation position, ground speed, draft, and pitch angle to the industrial computer; The speed optimization model of the unit calculates the recommended speed of the ship, calculates the required power of the ship through the power prediction model, and calculates the optimal engine and battery pack output power and propeller speed through the power dynamic management model. The industrial computer further displays in real time through the energy efficiency auxiliary decision-making unit. The invention can guide the efficient and economical navigation of the hybrid ship.
Description
technical field [0001] The invention relates to the field of energy efficiency of new energy ships, in particular to an energy efficiency prediction control system and method for hybrid ships. Background technique [0002] Global warming and greenhouse gas emissions have always attracted much attention. As a major greenhouse gas emitter, the shipping industry has faced enormous pressure from the public and environmental protection organizations in recent years. With the development of new ship energy technology and industrial control technology, hybrid ships have been widely used. [0003] For a long time, the research on the energy saving of hybrid ships has mainly focused on hybrid matching, energy-saving devices and so on. However, from the perspective of ship operation, optimizing the power output of the hybrid system is a very effective way to reduce energy consumption and improve energy efficiency. Theoretically, when a ship sails in still water with infinite water d...
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