Multi-energy energy management system of diesel-electric hybrid power ship
An energy management system and hybrid technology, which is applied to ship propulsion, engines using propulsion devices, and ship parts, etc., can solve the problems of power balance influence of power system, large demand fluctuations, and inability to change the absolute dominance of diesel engines, etc. achieve the effect of saving energy
Inactive Publication Date: 2020-07-10
WUHAN UNIV OF TECH
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Problems solved by technology
[0005] However, the above measures still cannot change the fact that diesel engines occupy an absolute dominant position in civil ship power plants, accounting for more than 95%, and cannot completely change the problem of low energy efficiency of ships, and cannot achieve ideal energy saving and emission reduction
Moreover, due to the large fluctuations in the demand on the load side of the ship, it has the characteristics of randomness, which will affect the power balance of the power system
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[0049] The present invention will be further described below in conjunction with specific examples and accompanying drawings.
[0050] The invention provides a multi-energy management system for a diesel-electric hybrid ship, such as figure 1 As shown, it includes:
[0051] The data collection unit is used to collect power grid parameters, propulsion system parameters, fuel consumption parameters and navigation environment parameters. Described data acquisition unit comprises current sensor, voltage sensor, dynamic torque tester, fuel consumption meter, temperature sensor, wind speed wind direction meter, speed log, depth sounder and positioning unit (the present embodiment adopts GPS positioning unit, also can adopt Beidou, etc.); Among them, the current sensor and voltage sensor are used to collect the current and voltage signals of the power system. Specifically, the voltage signal includes the output voltage of the diesel generator, the AC / DC output voltage, the input an...
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The invention provides a multi-energy energy management system for a diesel-electric hybrid power ship, and the system is characterized in that a data processing unit employs a model prediction control algorithm to calculate the load demand power after a certain period of time according to parameters and historical data collected by a data collection unit; a dynamic programming algorithm is adopted to solve a power generation side optimization combination by taking the load power demand as input, the lowest system fuel consumption as a target function and the safe operation of the system as aconstraint condition, and the start-stop and output power of a diesel generator set and a super-capacitor energy storage unit is regulated and controlled by taking the certain time as a period. By utilizing the working characteristics of peak clipping and valley filling of the super-capacitor, the input and output power of the diesel generator set and the super-capacitor energy storage unit is coordinated through the energy management system and the control strategy thereof, so that emission of a diesel engine is reduced, the fuel efficiency is improved, and the purpose of saving energy is achieved.
Description
technical field [0001] The invention belongs to the field of ships, and in particular relates to a multi-energy energy management system for a diesel-electric hybrid ship. Background technique [0002] With the development of global trade and the shipping industry, global shipping fuel consumption is increasing year by year. Since fuel consumption is positively correlated with pollutants and greenhouse gas emissions, if no measures are taken, it is estimated that by 2050, the shipping industry's carbon dioxide emissions will account for the world's anthropogenic carbon dioxide emissions. about 8% of emissions. Additionally, the shipping industry already accounts for 15% of global NOx emissions and is also expected to increase if left unchecked. At the same time, the Paris Convention also requires a substantial reduction in greenhouse gas emissions and the achievement of the goal of reducing global warming by 2°C. [0003] In order to ensure economic and environmental benef...
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IPC IPC(8): B63H21/20B63H21/21
CPCB63H21/20B63H21/21B63H2021/205B63H2021/216
Inventor 袁裕鹏王吉祥应如舜严新平叶卓杭
Owner WUHAN UNIV OF TECH