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Direct-current power supply system lead-acid storage battery pack discharge test system and method

A DC power system, lead-acid battery technology, applied in battery circuit devices, system integration technology, battery load switching, etc., can solve problems such as high working environment temperature, non-environmental protection, waste, etc.

Active Publication Date: 2021-06-15
CHINA THREE GORGES CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the discharge test, the energy of the battery is converted from electrical energy to heat energy through the discharge resistor, which is directly wasted.
Especially if this work is carried out in summer, the temperature of the working environment will be higher and hotter, which does not meet the requirements of environmental protection

Method used

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  • Direct-current power supply system lead-acid storage battery pack discharge test system and method
  • Direct-current power supply system lead-acid storage battery pack discharge test system and method
  • Direct-current power supply system lead-acid storage battery pack discharge test system and method

Examples

Experimental program
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Embodiment Construction

[0025] Such as figure 1 As shown, a discharge test system for a lead-acid battery pack in a DC power supply system, the system includes:

[0026] #1 lead-acid battery group 1, #2 lead-acid battery group 2;

[0027] The first DC load bus 6 and the first charging and discharging bus 10 are connected to the first rectifying and charging device 16 through the first switch 12; the first charging and discharging bus 10 is connected to #1 lead-acid storage battery group 1; #1 lead-acid storage battery group 1 Connect the first battery inspection instrument 3, the first battery inspection instrument 3 is used for real-time measurement of the single-cell voltage and single-cell internal resistance of #1 lead-acid battery pack 1;

[0028] A first shunt meter 18 and a first voltage collector 19 are arranged on the connecting line between the first charge-discharge bus bar 10 and the #1 lead-acid battery group 1, and the first shunt meter 18 is used to measure the voltage of the #1 lead-...

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Abstract

A direct-current power supply system lead-acid storage battery pack discharge test system comprises a #1 lead-acid storage battery pack and a #2 lead-acid storage battery pack. A first direct-current load bus and a first charging and discharging bus are connected with a first rectification charging device through a first change-over switch; the first charging and discharging bus is connected with the #1 lead-acid storage battery pack; and the #1 lead-acid storage battery pack is connected with a first storage battery inspection instrument. A first shunt meter and a first voltage collector are arranged on a connecting line of the first charging and discharging bus and the #1 lead-acid storage battery pack. The first charging and discharging bus and a second charging and discharging bus are connected with a three-phase inversion discharging device through a discharging selection switch. The connection relation of the second lead-acid storage battery pack is similar to that of the first lead-acid storage battery pack. And the storage battery inspection instrument, the shunt meter and a hanging rail type inspection instrument are all connected with a remote monitoring platform. According to the invention, remote state detection and real-time discharge control of the storage battery pack are realized through remote automatic inversion discharge of the lead-acid storage battery of the direct-current power supply system. The system has the advantages of being unattended, energy-saving and environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of lead-acid storage battery maintenance, and in particular relates to a discharge test system and method for a lead-acid storage battery in a DC power supply system. Background technique [0002] Lead-acid batteries are widely used in electric power, communication, finance and other industries. The operation and maintenance of lead-acid batteries in the prior art consumes a lot of manpower and material resources. According to the DL / T 724 technical regulations for the operation and maintenance of battery DC power supply devices for power systems: ①. For valve-regulated battery packs newly installed or overhauled, a 10-hour full-capacity checking discharge test shall be carried out, and a checking test shall be carried out at least once every 2 years thereafter; ② For valve-regulated battery packs after 4 years of operation, Capacity checking discharge test should be done once a year. The discharge time is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02J3/38H02J13/00G01R31/379G01R31/385G01R31/389G01R31/396
CPCH02J7/0036H02J7/0068H02J7/007186H02J3/38H02J13/00002G01R31/379G01R31/385G01R31/389G01R31/396Y04S10/12Y02E40/70
Inventor 刘喜泉
Owner CHINA THREE GORGES CORPORATION
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