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Marine diesel-electric hybrid propulsion system regular energy management control method based on working condition identification

A technology of propulsion system and hybrid power, applied in the field of energy management of ship power system, can solve the problem of low energy consumption of ships

Inactive Publication Date: 2019-07-30
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ships need to pass through different navigation areas during navigation, and it is necessary to select the most reasonable propulsion mode according to the operating conditions of the diesel-electric hybrid propulsion system, so that the energy consumption of the ship is the lowest; The energy management of the system is limited to the monitoring and unified scheduling of the energy of each component, and the switching of the operating mode is mainly to switch manually according to the needs of the navigation monitoring value.

Method used

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  • Marine diesel-electric hybrid propulsion system regular energy management control method based on working condition identification
  • Marine diesel-electric hybrid propulsion system regular energy management control method based on working condition identification
  • Marine diesel-electric hybrid propulsion system regular energy management control method based on working condition identification

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Embodiment 1

[0037] see Figure 1-5, a method for regular energy management and control of a marine diesel-electric hybrid propulsion system based on working condition identification. Motor propulsion system; each group of said dual-engine and shaft motor propulsion includes a high-power diesel engine 2 connected to the input end of the gearbox 1, a shaft motor 4 and a low-power diesel engine 7, and the output shaft of the gearbox 1 passes through The transmission shaft 9 is equipped with an adjustable propeller 8, and the shaft motor 4 is connected with a power distribution device 10, and the power distribution device 10 is connected with a diesel generator set 11; C clutch 3 is installed between, A clutch 5 is installed between the shaft motor 4 and the input shaft of gearbox 1, and B clutch 6 is installed between the low-power diesel engine 7 and the input shaft of gearbox 1;

[0038] When the shaft motor 4 is used as a generator, it can provide electric energy to the auxiliary power e...

Embodiment 2

[0043] The phase of fuzzy pattern recognition in navigation conditions includes the following steps:

[0044] Step1: The data collected and monitored by the control unit system of each component of the diesel-electric hybrid propulsion system is used to extract the average speed V of the input end for working condition identification r (r / min), average power P at the input r (kW), number n of clutches, acceleration / deceleration time percentage η (%) and acceleration standard deviation a std A total of 5 characteristic parameters;

[0045] Step2: For the n operating conditions to be identified and their corresponding 5 characteristic parameters during the ship's navigation, the characteristic parameter value matrix of the 5xn order operating conditions to be identified is formed:

[0046] X=[(x 11 ,x 21 ,x 31 ,x 41 ,x 51 ) T ,(x 12 ,x 22 ,x 32 ,x 42 ,x 52 ) T ...(x 1n ,x 2n ,x 3n ,x 4n ,x 5n ) T ];

[0047] Step3: After normalizing it, the relative membersh...

Embodiment 3

[0051] The regular energy management control phase includes the following steps:

[0052] Step 1: According to the combined or disengaged combination of A clutch 5, B clutch 6 and C clutch 3 in gearbox 1, 10 operating conditions of the diesel-electric hybrid propulsion system are obtained as shown in Table 1;

[0053] Step2: According to the operating conditions of the diesel-electric hybrid propulsion system shown in Table 1, establish the working mode switching rule diagram of the diesel-electric hybrid propulsion system, as shown in image 3 shown;

[0054] Step3: According to the working mode switching rules, the design logic rules judge and select the working mode of the hybrid propulsion system of the ship, which can control the reasonable distribution of the torque of the diesel engine and the shaft generator, so as to achieve the optimization of the hybrid propulsion system. For the purpose of reasonable energy distribution, the energy control rules of the diesel-elec...

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Abstract

The invention discloses a marine diesel-electric hybrid propulsion system regular energy management control method based on working condition identification. Data collected and monitored by each partcontrol unit system of a diesel-electric hybrid propulsion system are used for extracting characteristic parameters used for working condition identification, and a fuzzy pattern identification modelis adopted to identify sailing working conditions and determine standard sailing working conditions to which the sailing working conditions belongs; and then, according to the analysis and research onthe characteristics of operating conditions and the characteristics of energy transmission of the diesel-electric hybrid propulsion system, a working mode switching rule diagram of the hybrid propulsion system is established, and the switching of a working state or a working mode of each part control unit system of the diesel-electric hybrid propulsion system is completed by adopting a rule-basedenergy management control strategy. Through the marine diesel-electric hybrid propulsion system regular energy management control method based on the working condition identification, a more economical operation mode can be automatically selected and provided in the marine sailing process, and the purposes of improving the working efficiency of a diesel engine and reducing the fuel consumption isachieved.

Description

technical field [0001] The invention relates to a regular energy management control method of a marine diesel-electric hybrid propulsion system based on working condition identification, and belongs to the technical field of energy management of a marine power system. Background technique [0002] As people's awareness of environmental protection gradually increases, the shipping industry has also proposed the concept of "low-carbon economy" and green shipbuilding. In terms of ship power propulsion systems, on the one hand, for operators in the shipping industry, improving the operating efficiency of ship propulsion systems will help reduce ship operating costs and improve their competitiveness in the market; on the other hand, it will also help reduce CO 2 Greenhouse gas emissions and SO X and NO X emissions of harmful gases. Compared with the traditional marine mechanical propulsion system, the diesel-electric hybrid propulsion system has the characteristics of complex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H21/17
CPCB63H21/17B63H2021/205
Inventor 肖能齐郑涵钰胡家梁何巍江金辉雷振陈艳杰武宏淳郭志鹏
Owner CHINA THREE GORGES UNIV
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