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A kind of dc-dc battery simulator and test method of bidirectional power supply

A battery simulator, DC-DC technology, applied in the power supply field, can solve problems such as differences in the derivation process, achieve strong flexibility, improve flexibility and convenience, and reduce test costs.

Active Publication Date: 2021-10-01
江苏凯创电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] The above battery calculation formula is a general derivation process, the specific V soc And SOC is also related to the connection method of battery and DC-DC, different connection methods, the derivation process is different

Method used

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  • A kind of dc-dc battery simulator and test method of bidirectional power supply
  • A kind of dc-dc battery simulator and test method of bidirectional power supply
  • A kind of dc-dc battery simulator and test method of bidirectional power supply

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] like Figure 2- Figure 4 As shown: This embodiment takes a two-way power source as an example, specifically a DC-DC battery simulator based on a bidirectional power source, including a battery simulator module, BMS battery management system module, DC-DC converter module, a BMS battery management system module, a DC-DC converter module Where: The output of the battery simulator module is connected to the input or output of the DC-DC converter module, and the BMS battery management system module is connected to the DC-DC converter module, the logical interface of the battery emulator module, respectively; DC-DC Converter Module Front Received Survery.

[0074] In the specific implementation, the battery simulator module, the BMS battery management system module, the DC-DC converter module are both logical function modules, and the communication between the modules is called each other by the firmware based on the communication between the two-dimensional power supply.

[0075...

Embodiment 2

[0101] like Figure 5 As shown: On the basis of the first embodiment, the next method of the battery simulator module and the DC-DC converter module is changed such that the output of the battery simulator module is connected to the output of the DC-DC converter module.

[0102] According to the above connection, the specific test step and the algorithm of the present invention are:

[0103] (1) The output of the battery simulator module is connected to the output of the DC-DC converter module;

[0104] (2) According to BV set Vs. soc Relationship set Value, specifically:

[0105] If BV set > V soc Get V set = V l Otherwise, V set = V h ;

[0106] (3) According to the power conservation of the power of both ends of the DC-DC converter module:

[0107] P = min (BP set , V o * I o );

[0108] P set = BP set ;

[0109]

[0110] have to:

[0111] Where P is expressed as the intermediate amount of the formula, it is understood as the user setting power value BP. set Power value v in ...

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Abstract

A DC-DC battery simulator with a bidirectional power supply, including a battery simulator module built in a bidirectional power supply, a BMS battery management system module, and a DC-DC converter module; the battery simulator module is used to configure the parameters of the battery simulator; the BMS The battery management system module is used to set the output terminal parameters of the DC‑DC converter module, collect and transmit battery parameters; parameter adjustment. In the present invention, the DC-DC converter is built into the bidirectional power supply device, and customers can arbitrarily set the output voltage, current and power of the DC-DC converter according to their own needs, which provides strong flexibility and reduces the test cost for customers .

Description

Technical field [0001] The invention belongs to the technical field of power supply, involving a DC-DC battery simulator and detection method of a two-way power source. Background technique [0002] Electric vehicles will be the future trend of road vehicles, thus derived many technical needs, especially the development of power battery technology inside the automobile, has become a hot research hotspot for electric vehicles, and the power battery simulator is often used to simulate power battery characteristics. Important test tools, common battery simulators need to match the external DC-DC converter to the object (automotive motor), the common battery simulator cannot support commonly used BMS communication protocol, and high power DC-DC converter It is also difficult to buy and produce, and its flexibility is difficult to meet the current research needs of current automotive power batteries. [0003] The basic model of the general battery simulator and the principle are: figu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/3842
CPCG01R31/3842
Inventor 不公告发明人
Owner 江苏凯创电子科技有限公司