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DAB-based ISOP type storage battery detection power supply control method, device and system

A control method and battery technology, applied in battery circuit devices, circuit devices, current collectors, etc., can solve the problems of large differences in circuit parameters, inability to achieve voltage and current balance control, and achieve the effect of good charging performance

Pending Publication Date: 2022-04-05
HEFEI UNIV OF TECH
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  • Application Information

AI Technical Summary

Problems solved by technology

However, if the circuit parameters of each module differ greatly in this method, the method cannot realize the voltage and current balance control of each module.

Method used

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  • DAB-based ISOP type storage battery detection power supply control method, device and system
  • DAB-based ISOP type storage battery detection power supply control method, device and system
  • DAB-based ISOP type storage battery detection power supply control method, device and system

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Embodiment Construction

[0089] The specific implementation manners of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation manners described here are only used to illustrate and explain the embodiments of the present invention, and are not intended to limit the embodiments of the present invention.

[0090] Such as figure 1 Shown is a flow chart of a DAB-based control method for an ISOP battery detection power supply according to an embodiment of the present invention. in the figure 1 , the control method may include:

[0091] In step S10, obtain the constant current charging current and the constant current charging voltage of the storage battery;

[0092] In step S11, the signal duty cycle for controlling the DAB topology for charging the battery is calculated according to the formula (1) based on the constant current charging current,

[0093]

[0094] Among them, D ...

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Abstract

The embodiment of the invention provides a DAB-based ISOP type storage battery detection power supply control method, device and system, and belongs to the technical field of storage battery charging control. The control method comprises the following steps: acquiring a constant-current charging current and a constant-current charging voltage of a storage battery; calculating a signal duty cycle for controlling a DAB topology for charging the battery based on the constant-current charging current; acquiring the current charging current of the storage battery; taking the current charging current as a constant charging current, and calculating a signal duty ratio; acquiring the current charging voltage of the storage battery; judging whether the current charging voltage is greater than or equal to the constant-voltage charging voltage; under the condition that the current charging voltage is greater than or equal to the constant-voltage charging voltage, determining a constant-voltage charging voltage interval of the storage battery based on the constant-voltage charging voltage according to a formula (2); judging whether the current charging current is less than or equal to 1 / 10 of the constant-current charging current; and when it is judged that the current charging current is smaller than or equal to 1 / 10 of the initial constant-current charging current, charging is stopped.

Description

technical field [0001] The invention relates to the technical field of battery charge control, in particular to a DAB-based control method, device and system for detecting a power supply of an ISOP battery. Background technique [0002] The battery test means that the battery is charged and discharged cyclically by detecting the power supply, and the cycle life of the battery is checked. At present, the detection power supply on the market adopts the design of separate charging and discharging circuits. For example, when charging, the circuit adopts a single-phase rectification plus Buck topology, and the output of the Buck circuit is connected to the battery pack under test for charging; when discharging, the circuit adopts a Boost circuit. The output is connected to the energy consumption load to directly consume the battery power. Because the Buck or Boost circuit is only suitable for low-voltage input, single-phase rectification needs to be connected to the power grid t...

Claims

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Application Information

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IPC IPC(8): H02J7/00
Inventor 施永张震何伟苏建徽赖纪东张健
Owner HEFEI UNIV OF TECH
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