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Super capacitor-fuel cell hybrid power special vehicle power coordination method

A fuel cell and supercapacitor technology, applied in electric vehicles, vehicle parts, battery circuit devices, etc., can solve the problems of energy waste of fuel cells and high requirements of fuel cell systems, achieve real-time control and improve operating performance

Pending Publication Date: 2021-11-02
BEIHANG UNIV
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Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide a supercapacitor-fuel cell hybrid special vehicle power coordination method to solve the problems in the prior art in response to load change power system, energy waste of fuel cells and high impact on fuel cell systems. asked questions

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  • Super capacitor-fuel cell hybrid power special vehicle power coordination method
  • Super capacitor-fuel cell hybrid power special vehicle power coordination method
  • Super capacitor-fuel cell hybrid power special vehicle power coordination method

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Embodiment 1

[0035]This embodiment provides a supercapacitor-fuel cell hybrid special vehicle power coordination method.

[0036] like figure 1 As shown, the power coordination method for a supercapacitor-fuel cell hybrid special vehicle comprises the following steps:

[0037] Step 100, establishing a mathematical model of the hybrid power system structure, including: a power balance model, a mathematical model of a supercapacitor, and a mathematical model of a fuel cell. The supercapacitor and the fuel cell are used as a hybrid power source to obtain the remaining power of the supercapacitor and The power consumption of the fuel cell.

[0038] Step 101, from the perspective of power flow, establish a power balance model of the nodes of the total electric power of the whole vehicle.

[0039] The power balance model includes: power distribution among fuel cells, supercapacitors, electric motors and other vehicle electrical loads.

[0040] refer to figure 2 , the power balance model can...

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Abstract

The invention relates to a super capacitor-fuel cell hybrid power special vehicle power coordination method. The method comprises the following steps: step 100, establishing mathematical models of a hybrid power system structure, which includes a power balance model, a mathematical model of a super capacitor and a mathematical model of a fuel cell, wherein the super capacitor and the fuel cell are used as a hybrid power source to obtain the residual electric quantity of the super capacitor and the electric quantity consumption of the fuel cell; step 200, establishing a model prediction controller system according to the obtained residual electric quantity of the super capacitor and the electric quantity consumption of the fuel cell, performing energy management, and finally obtaining an optimal control sequence; and step 300, adding a first value in the optimal control sequence finally obtained in the step 200 to a model prediction controller, updating a state value, and carrying out iteration in sequence.

Description

technical field [0001] The invention belongs to the technical field of new energy hybrid vehicles, and relates to a method for coordinating the power of a supercapacitor-fuel cell hybrid special vehicle. Background technique [0002] In recent years, new energy vehicles have been favored by people due to their advantages such as environmental protection and energy saving, and have developed rapidly. In the field of civil aviation, with the launch of the special pilot project of "oil-to-gas" special vehicles on the ground at the airport, how to deploy new energy vehicles in the airport environment is attracting the attention of the industry. Compared with general application scenarios, the operating conditions of vehicles in the airport are complex, with long working hours, high working frequency, heavy workload, and frequent load changes. Especially for the aircraft guidance vehicle in the airport, it is required to drag the aircraft smoothly in a very short time, which put...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/34H02J7/00
CPCH02J7/345H02J7/0048H02J7/0063H02J2207/50
Inventor 任毅龙兰征兴于海洋王吉祥付翔余航
Owner BEIHANG UNIV
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