Optimal control method for hybrid electric ship propulsion system
A propulsion system and hybrid power technology, applied in the field of ship power, can solve the problems of low utilization rate of energy storage equipment and diesel generator sets, and achieve the effects of reducing emissions, rational power distribution, and reducing fuel consumption
Active Publication Date: 2021-06-01
GUANGDONG OCEAN UNIVERSITY
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Problems solved by technology
[0005] In the hybrid system of the prior art, the utilization rate of energy efficiency between the energy storage device and the diesel generator set is too low
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[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0042] figure 1 It is a flow chart of the optimization control method of the hybrid electric ship propulsion system of the present invention, such as figure 1 As shown, the method of this embodiment may include:
[0043] Step 101, set the fuel consumption curve coefficient of the diesel generator set, the load power and the parameters of the lit...
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The invention discloses an optimal control method for a hybrid electric ship propulsion system, comprising: setting the fuel consumption curve coefficient of a diesel generator set, load power and parameters of a lithium battery pack; calculating the equivalent resistance of the load power according to the load power; The state of charge determines the charging / discharging time of the lithium battery pack; calculates the working coefficient of the lithium battery pack according to the charging time and discharging time of the lithium battery pack; uses the particle swarm algorithm to calculate the optimal fuel consumption value of the diesel generator set; according to the fuel consumption curve coefficient, load Calculate the optimal output power of the diesel generator set and the optimal distribution coefficient of the energy storage unit based on the power, lithium battery pack parameters, equivalent resistance of the load power, the working coefficient of the lithium battery pack, and the optimal fuel consumption value; according to the optimal output power and the optimal Distribution coefficient optimization for hybrid electric ship propulsion systems. The invention can effectively save the fuel of the diesel generator set and improve the work efficiency.
Description
technical field [0001] The invention relates to the technical field of ship power, in particular to an optimal control method for a hybrid electric ship propulsion system. Background technique [0002] With the rapid development of power electronic device manufacturing technology, electric propulsion is widely used in ship propulsion systems. Ships using electric propulsion generally choose multiple medium-speed diesel engines as power sources, which have ideal maneuverability and reduce ship vibration and noise. They have been widely used in ferries, marine support transmissions, and offshore oil drilling platforms. Batteries, as efficient energy storage devices, have been widely used in automobiles, aviation and other fields, and hybrid vehicles combined with battery packs have attracted more and more attention. If traditional electric propulsion ships can be designed in the form of hybrid electric propulsion, they will have more advantages in energy saving and emission, ...
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IPC IPC(8): G06F30/15G06F30/27B63H21/20
CPCB63H21/20B63H2021/202B63H2021/205Y02T90/00
Inventor 贾宝柱张程刘可欣程玉栋
Owner GUANGDONG OCEAN UNIVERSITY