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Constant-current discharging device and related method and system

A technology of constant current discharge and battery discharge, applied in circuit devices, battery circuit devices, measuring devices, etc., can solve the problems of inaccurate calculation of discharge capacity, limited test conditions, slow discharge, etc., and achieve continuous controllable battery discharge current, The effect of stabilizing the power supply output object

Pending Publication Date: 2021-09-24
KEHUA DATA CO LTD +1
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, during the online test, because the customer’s on-site load is usually not large and fluctuates greatly, there are problems such as slow discharge, limited test conditions, and inability to accurately calculate the discharge capacity, making it difficult to obtain more accurate and effective test evaluation results.

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  • Constant-current discharging device and related method and system
  • Constant-current discharging device and related method and system
  • Constant-current discharging device and related method and system

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the invention and should not be seen as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] In the claims, description and above-mentioned drawings of the present invention, unless otherwise clearly defined, the terms "first", "second" or "third" are used to distinguish different objects, not for Describe a specific order.

[0033] In the claims, description and above-mentioned drawings of the present invention, if the terms "comprising", "having" and their variants are used, it is intended to mean "including but not limited...

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Abstract

The invention discloses a constant-current discharging device and a related method and system. The constant-current discharging device for connecting a first power source, a battery and a load and adapted to achieve constant current discharge of the battery has a bus connecting the battery and the load and includes a first converter connecting the first power source and the bus, and a control unit, wherein the control unit adjusts the working direction and the output power of the first converter when the load power is not matched with the battery discharge power, so the sum of the battery discharge power and the output power of the first converter is balanced with the load power, and the battery is maintained to perform constant-current discharge on the bus at a set first current value. In addition, the invention also discloses a constant-current discharge method, a power supply system and a battery online test method based on the constant-current discharge device, which are suitable for performing online test on the battery and obtaining a more accurate and effective test evaluation result under the condition of ensuring stable power supply of the load.

Description

technical field [0001] The invention relates to the technical field of power supply systems powered by batteries, in particular to a constant current discharge device and related methods and systems. Background technique [0002] In transportation and industrial industries, UPS power supply systems are usually used to ensure the power supply of loads. After the UPS power system is put into use, in order to ensure the reliability of the energy storage of the backup battery, it is necessary to conduct a discharge test on the battery regularly to evaluate the battery performance. [0003] In the past, the usual practice was to use offline testing, that is, disconnect the main unit from the battery, and conduct a heat discharge test on the battery load resistance wire separately. This method not only has the risk of power failure of the load, but also causes the ambient temperature to rise and requires forced cooling. . Therefore, the demand for online testing of batteries is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/385G01R31/392H02J7/00
CPCH02J7/0063H02J7/00712G01R1/28G01R31/382G01R31/378
Inventor 戴永辉孙泗棍蒋日乾
Owner KEHUA DATA CO LTD
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