Method and device for keeping battery equalization state in real time

A battery equalization and equalization technology, which is applied in the direction of battery circuit devices, circuit devices, charge equalization circuits, etc., can solve the problems of not setting energy storage parameters, no real-time control structure, and not setting the switching cycle of the balancing circuit, etc., to achieve Maintain the effect of battery balance in real time

Pending Publication Date: 2022-01-04
深圳市灵适智慧能源有限公司
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  • Claims
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Problems solved by technology

Since the existing technology adopts non-real-time technology, there is no setting of the switching cycle

Method used

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  • Method and device for keeping battery equalization state in real time

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[0017] See figure 1 , A method of implementing a real-time holding battery equalization state of the present invention is composed of a master 1, a parameter configuration device 2, a switch driver 3, a two-choice switch 4, and an energy storage device;

[0018] By the parameter configurable value 2, according to the battery manufacturer, the battery is not balanced voltage reference value, the battery is unbalanced confirmation time, the constant current charging current value, the typical discharge current value, and the equalization retention coefficient k; the equalization of the equalization of the maintenance coefficient k is 10 ~ 1000, the larger value, the higher the accuracy of the battery equilibrium in real time;

[0019] By the master 1 calculates a balanced holding control period, equalization holding control cycle = battery unbalanced confirmation time / battery equilibrium state hold coefficient;

[0020] By calculating a balanced opening phase control cycle by the ...

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Abstract

The invention relates to the field of power electronics, in particular to a method and device for keeping a battery equalization state in real time. The device comprises a main controller 1, a parameter configurator 2, a switch driver 3, an alternative switch 4 and an energy accumulator 5. The invention provides a system structure for keeping battery equalization in real time, and provides a calculation method for the operation cycle of a control system and parameters of an energy storage device. The purpose of keeping the battery balanced in real time is achieved.

Description

technical field [0001] The invention relates to the technical field of power electronics. Background technique [0002] In the power system, whether it is an energy storage system or a backup system, battery balancing in the system is one of the necessary conditions to maintain the stable operation of the system. The existing method of maintaining battery balance adopts the method of post-event balance. When the battery is found to be unbalanced through monitoring the battery, the balance circuit is turned on to restore the battery to a balanced state. Since the prior art adopts non-real-time technology, there is no setting of the switching cycle of the equalization circuit, no setting of energy storage parameters, and no real-time control structure. [0003] Different from the prior art, the present invention provides a system structure for maintaining battery balance in real time, and provides a calculation method for the operating cycle of the control system and energy s...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J7/0014
Inventor 吴小伟项众起
Owner 深圳市灵适智慧能源有限公司
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