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Control method of fuel battery and storage battery hybrid power driving system

A fuel cell and drive system technology, applied in hybrid vehicles, motor vehicles, climate sustainability, etc., can solve problems such as sudden changes in motion state, high pulse power demand, slow electrochemical and thermodynamic reactions of fuel cells, etc.

Active Publication Date: 2016-01-20
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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Problems solved by technology

[0003] The electrochemical and thermodynamic reactions inside the fuel cell are relatively slow, and the dynamic response has a certain time lag, which makes it difficult to meet the requirements of rapid load changes
However, for many electrical equipment, such as robots and electric vehicles, the motion state will change suddenly during operation, and there may be a high pulse power demand in a short period of time, which limits the application range of fuel cells.

Method used

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  • Control method of fuel battery and storage battery hybrid power driving system
  • Control method of fuel battery and storage battery hybrid power driving system
  • Control method of fuel battery and storage battery hybrid power driving system

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Embodiment Construction

[0041] The embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings, but the present embodiments are not intended to limit the present invention. All similar structures and similar changes of the present invention should be included in the scope of protection of the present invention. The commas in all indicate the relationship between and.

[0042] Such as Figure 1-Figure 4 As shown, a fuel cell and battery hybrid drive system control method provided by the embodiment of the present invention relates to a hybrid drive system equipped with a fuel cell, a battery and a DC / DC converter, and is characterized in that: Method 1 is used to control For the fuel cell, use method 2 to control the storage battery, and use method 3 to control the DC / DC converter;

[0043] Method 1: Fuel Cell Control

[0044] 1.1) According to the load power demand P demand and the current working state of the hybrid drive system, distrib...

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Abstract

The invention discloses a control method of a fuel battery and storage battery hybrid power driving system, and relates to the field of a hybrid power driving technology, for solving the technical problems of improving the dynamic response property of a fuel battery and improving the endurance of the fuel battery. According to the method, power output of the fuel battery changes along with stable-state output of a load, and reasonable power distribution between the fuel battery and a storage battery; and charge and discharge of the storage battery are controlled by taking the state of charge (SOC) of the storage battery as a basis, the SOC value of the storage battery is enabled to change within an ideal scope, output power of the fuel battery is adjusted through controlling a current control type DC / DC converter, the SOC of the storage battery is maintained at a stable state, charge and discharge management of the storage battery is realized, extension control is applied to control of a converter, and a hybrid energy system is enabled to obtain better performance. The method provided by the invention is applied to the fuel battery and a storage battery hybrid power driving system.

Description

technical field [0001] The invention relates to hybrid power drive technology, in particular to a technology for controlling a fuel cell and storage battery hybrid power drive system. Background technique [0002] Proton exchange membrane fuel cell (PEMFC) is not limited by the Carnot cycle. It has the advantages of high power density, low operating temperature, fast start-up, high stability, cleanliness, and high modularity. It has become the main solution to energy depletion and environmental pollution. driving energy. [0003] The electrochemical and thermodynamic reactions inside the fuel cell are relatively slow, and the dynamic response has a certain time lag, which makes it difficult to meet the requirements of rapid load changes. However, for many electrical devices, such as robots and electric vehicles, the motion state will change suddenly during operation, and there may be a high pulse power demand in a short period of time, which limits the application range of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00B60W10/26B60W10/28
CPCB60W10/26B60W10/28B60W20/10Y02T90/40
Inventor 吕学勤刘文明
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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