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Three-level charging-up optimizing control method and system for hydrogenation station high-efficiency hydrogenation

A technology for optimal control and hydrogen refueling stations, applied in general control systems, control/regulation systems, adaptive control, etc.

Active Publication Date: 2008-12-03
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In short, there is no report on the optimal control optimization method for simultaneous high gas extraction rate sequence gas extraction and rapid injection in the high-pressure hydrogenation process in China.

Method used

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  • Three-level charging-up optimizing control method and system for hydrogenation station high-efficiency hydrogenation
  • Three-level charging-up optimizing control method and system for hydrogenation station high-efficiency hydrogenation
  • Three-level charging-up optimizing control method and system for hydrogenation station high-efficiency hydrogenation

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0062] Carry out three-level refueling optimization calculation for hydrogen refueling station, in which the volume of low-pressure hydrogen storage container V 1 =0.6m 3 , pressure P 1 =42MPa; medium pressure hydrogen storage container volume V 2 =0.4m 3 , pressure P 2 =45MPa; volume V of high-pressure hydrogen storage container 3 =0.2m 3 , pressure P 3 =70MPa; set the volume of the vehicle-mounted gas cylinder V=0.15m 3 , the pressure P after full inflation = 35MPa, the initial pressure P before each inflation 0 = 2 MPa.

[0063] According to the control method in the content of the invention, a programming solution is performed to obtain a non-inferior solution of the control method. Then, according to the purpose of process optimization and actual requirements, the optimal solution is selected and compiled into specific actual operation control steps.

[0064] The non-inferior solutions of the control method are shown in Table 1.

[0065]

[0066]

[0067]...

example 2

[0079] Hydrogen refueling station low pressure group fixed container volume V 1 =0.6m 3 , pressure P 1 =42MPa, medium pressure group fixed container volume V 2 =0.4m 3 , pressure P 2 =70MPa, high pressure group fixed container volume V 3 =0.2m 3 , pressure P 3 =70MPa, set the volume of the vehicle-mounted gas cylinder V=0.15m 3 , the pressure P after full inflation = 35MPa, the initial pressure P before each inflation 0 = 2 MPa.

[0080]

[0081]

[0082]

[0083] According to this control method, the above several filling modes can be obtained. The best method can be determined according to the specific filling requirements. For example, when the gas is filled to 8 tanks, the hydrogen utilization rate is η = m × n M = 65.47 % , And when the filling is 7 tanks, the hydrogen utilization rate is η ...

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Abstract

The invention relates to a hydrogen-refueling optimized control method and a corresponding system, aiming at providing a three-level refueling optimized method for a hydrogen-refueling station with high-effective hydrogen-refueling, namely, a hydrogen-storing tank in the hydrogen-refueling station is divided into three groups which are high, middle and low.. A multi-object optimization algorithm is put forward and a constraint method is adopted to convert a multi-object problem into a plurality of single-object optimization problems so as to realize high effective hydrogen-taking and quick refueling. Each single-object schedule problem belongs to the dynamic schedule scope and a forward sequential searching method is adopted. A detailed program control flow is figured out according to the optimized result so as to design the optimal refueling mode for the refueling system of the hydrogen-refueling station. The invention also provides a hydrogen refueling system which is used for the high-effective hydrogen-refueling three-level optimized control method of the hydrogen-refueling station and comprises a hydrogen-storing container, a hydrogen-charging valve, a pressure sensor, a hydrogen distributor, a flow meter and a check valve; the hydrogen-storing container comprises a low-pressure hydrogen-storing container, a middle-pressure hydrogen-storing container and a high-pressure hydrogen-storing container; and also a program controller.

Description

technical field [0001] The present invention relates to a hydrogenation optimization control method and system thereof, more specifically, relates to a three-stage filling optimization control method and system for efficient hydrogenation of a hydrogenation station. Background technique [0002] In the process of bringing fuel cell vehicles to the market, there are currently at least three major technical barriers to overcome: (1) the integration of small, lightweight, cheap and efficient fuel cell engines; (2) high-capacity on-board hydrogen storage tank design; (3) the development of hydrogen refueling facilities and the construction of hydrogen refueling stations. So far, the latter is more critical. At present, there are two main development trends in the construction of hydrogen filling system: (1) high parameterization of filling gaseous hydrogen, that is, increasing the hydrogen storage pressure of the on-board container to the highest economic pressure of 70MPa, so ...

Claims

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Application Information

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IPC IPC(8): G05B13/02F17C5/04
CPCY02E60/321Y02E60/32
Inventor 郑津洋杨健赵磊唐萍徐平叶建军
Owner ZHEJIANG UNIV
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