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On-line storage battery managing system and running method thereof

A management system, battery technology, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve problems such as being unable to be found, unable to be in a high current state, poor contact, etc., to achieve the effect of solving inaccurate monitoring

Pending Publication Date: 2017-02-22
STATE GRID CORP OF CHINA +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a storage battery online management system and its operation method, which can switch the operation state of the storage battery, realize the measurement of the open circuit voltage of the single storage battery; realize the measurement of the internal resistance of the single storage battery under specific conditions, and solve the current problem. There is a problem that only measuring the floating charge voltage of the battery in the operation mode cannot accurately reflect the health status of the battery, and the existing method of measuring the internal resistance of the battery cannot work in a high current state, cannot truly reflect the working condition of the battery, and cannot solve hidden dangers such as poor internal contact. problems found

Method used

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  • On-line storage battery managing system and running method thereof
  • On-line storage battery managing system and running method thereof
  • On-line storage battery managing system and running method thereof

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Experimental program
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Embodiment

[0069] Embodiment: the main control module Z is responsible for the overall monitoring and control of the system, including the control of the battery monitoring modules M1-Mn, voltage signal acquisition, and communication with them, responsible for controlling the switches K1 and K2, and responsible for overall calculation and alarm; discharge Module F is a discharge instrument, which can also be a high-power resistor, which is used to discharge the battery as a whole; the battery monitoring module M1 - Mn is connected to both ends of each battery, and is used to monitor the battery cell. Equalize, measure the voltage of the monomer, and combine the discharge test of the main control module Z to obtain the internal resistance of the battery; the controllable switch K1 can choose a DC contactor, or a circuit breaker with an electric operating mechanism, or a power electronic switching device; controllable The switch K2 can choose a DC contactor, or a circuit breaker plus an ele...

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Abstract

The invention provides an on-line storage battery managing system and a running method thereof. The running state of a storage battery can be switched, measurement on the open-circuit voltage of a single storage battery is achieved, and measurement on the internal resistance of the singe storage battery under the specific conditions is achieved; the problems that in an existing running mode, only the floating charge voltage of the storage battery can be measured, and the health condition of the storage battery cannot be accurately reflected are solved, the problems that an existing storage battery internal resistance measuring method cannot be operated in a large-current state and truly reflect the working condition of the storage battery are solved, and the problem that hidden dangers such as internal bad contact cannot be found out is solved.

Description

technical field [0001] The invention relates to an on-line storage battery management system and an operation method thereof, which are generally applied in the field of DC operating power supplies of electric power systems. Background technique [0002] As the core component of the DC operating power supply of the power system, the battery pack mostly adopts the form of connecting multiple cells in series. It is also constantly changing, which will lead to an increase in the internal resistance of some batteries, a decrease in capacity, or other failures. When the DC system is required to provide power to the load, the failure of one or more single batteries makes the entire battery pack unable to output , causing the DC bus to lose voltage, thus causing the protection equipment or control equipment to fail to work normally. [0003] According to the regulations, the battery is required to be in the floating charging operation mode for a long time. Since the voltage of the...

Claims

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Application Information

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IPC IPC(8): G01R31/36
CPCG01R31/389G01R31/392G01R31/396
Inventor 杨爱晟王立新程银花郭玮白更生
Owner STATE GRID CORP OF CHINA
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