Online monitoring method for communication battery health degree

A storage battery and healthy technology, which is applied in the direction of measuring electricity, measuring devices, and measuring electrical variables, etc., can solve the problems of calculation error of actual battery capacity, inability to realize accurate prediction and estimation of battery capacity, etc., to improve reliability and guarantee level, and accurately The effect of high degree and strong applicability

Inactive Publication Date: 2018-12-21
STATE GRID CORP OF CHINA +1
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Problems solved by technology

However, in the on-site environment of power communication batteries, the actual capacity estimation of the batteries will be affected by many factors such as the brand of the manufacturer, the magnitude of the charge and discharge current, and temperature changes, making the calculation of the actual capacity change of the batteries a complicated process. The capaci

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  • Online monitoring method for communication battery health degree
  • Online monitoring method for communication battery health degree
  • Online monitoring method for communication battery health degree

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[0055] The following is further described with reference to the drawings and specific embodiments.

[0056] Combine figure 1 with figure 2 , The communication battery health monitoring method of the present invention includes:

[0057] Real-time monitoring of the working current, voltage, internal resistance and working temperature of the battery;

[0058] Judge the current working state of the battery according to the monitoring value of the battery working current;

[0059] When the battery is in a discharging state: Determine the discharge current correction factor K according to the discharge characteristics of the battery and the current temperature T 1 , And then calculate the capacity C released by the battery during discharge u1 , And the real-time state of charge SOC of the battery;

[0060] When the battery is in the charging state: Determine the charging current correction factor K according to the charging efficiency of the battery and the current temperature T 2 , And then...

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Abstract

The invention discloses an online monitoring method for a communication battery health degree. The current, the terminal voltage and the internal resistance of a storage battery under various different working states are monitored in real time, an improved ampere-hour method is used for calculating the capacity of the storage battery, and meanwhile, the influence of the discharge rate, the chargeefficiency and the temperature of the storage battery on the capacity is corrected, the state of health of the storage battery under a charge and discharge state can be quantified, and a basis is provided for the qualitative analysis of the state of health of the storage battery under a floating charge state so as to realize the all-around judgment of the state of health of the storage battery under the conditions of charge, discharge and floating charge. The method has the advantages of being high in applicability and accuracy, simple in implementation and the like, so that the method can beused for discovering storage battery individuals which may have hidden dangers in advance, the reliability and the guarantee level of the storage battery can be effectively improved, and the method ishigh in practicality.

Description

technical field [0001] The invention relates to the technical field of safe operation of power grid equipment, in particular to an online monitoring method for the health degree of a communication storage battery. Background technique [0002] In recent years, in the actual use of maintenance-free lead-acid batteries, major communication accidents caused by battery failures have occurred from time to time, causing great safety hazards to the safe and stable operation of the power grid. The traditional daily maintenance of batteries is usually carried out manually on a regular basis. Since the communication batteries of the power grid are usually distributed in the communication rooms of substations of different levels, it is difficult to ensure that special personnel are supervised and tested, and there is also a lack of corresponding data analysis methods. Targeted battery health status assessment and risk warning. [0003] The actual capacity of the battery is the most di...

Claims

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Application Information

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IPC IPC(8): G01R31/36
Inventor 吴海洋缪巍巍黄进鲍丽山郭波丁士长蒋春霞韩际晖李伟王磊戴勇贾平江凇李霁轩
Owner STATE GRID CORP OF CHINA
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