Storage battery dynamic and static discharge testing method
A discharge test, battery voltage technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of expanding the scope of accidents, and the battery cannot guarantee the discharge requirements, etc.
Inactive Publication Date: 2019-04-16
STATE GRID ZHEJIANG ELECTRIC POWER COMPANY TAIZHOU POWER SUPPLY +1
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Problems solved by technology
Once the power is cut off and the battery needs to be discharged, the battery may not be able to meet the discharge requirements in an accident state, thereby expanding the scope of the accident.
Method used
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[0019] The technical solutions of the embodiments of the present invention will be explained and described below in conjunction with the accompanying drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all of them. Based on the examples in the implementation manners, other examples obtained by those skilled in the art without making creative efforts all belong to the protection scope of the present invention.
[0020] By analyzing the battery discharge curve, the following conclusions can be drawn:
[0021] 1. The same discharge curve reflects the same battery performance.
[0022] 2. Using a large current for discharge impact can get a clear drop curve in a short time, and then measure the internal resistance of the battery. The internal resistance measured for batteries of the same manufacturer and specifications will reflect the difference in battery performance.
[0023] 3. For th...
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The invention discloses a storage battery dynamic and static discharge testing method. The storage battery dynamic and static discharge testing method comprises the following steps that S1, the voltage, the charge and discharge current and the temperature of a storage battery are detected in real time; S2, dynamic large-current impact load discharge is performed to obtain a battery instantaneous discharge curve, so that the internal resistance is measured, wherein the internal resistance is equal to the quotient of dividing the difference between the storage battery electromotive force and thestorage battery voltage by the discharge current; and S3, static low-current constant-current discharge is performed, the battery capacity is measured, wherein the storage battery capacity is equal to the product of the discharge current and the time. In the case of the storage battery dynamic and static discharge testing method, according to the relation between the discharge curve and the battery performance, the discharge curve is analyzed, the performance of the battery can be effectively tested, multiple terms of measuring results such as the floating charge voltage, the discharge curveand the internal resistance of the storage battery are comprehensively calculated and analyzed, and then the performance of the storage battery can be judged.
Description
technical field [0001] The invention relates to battery technology, in particular to a battery dynamic and static discharge test method. Background technique [0002] When the power is interrupted, the battery plays an extremely important role in the DC system as a backup power supply, and many important equipment must be maintained and operated by the battery. But before the expected life of the battery is reached, its capacity will drop significantly due to various reasons. Therefore, the capacity of the storage battery must be checked regularly to avoid heavy economic losses to you in the event of a power outage due to an electrical accident. [0003] At present, the commonly used detection methods are to measure the terminal voltage, internal resistance and check discharge capacity test of the battery. However, the terminal voltage of the battery has no corresponding relationship with the capacity. It is difficult for the terminal voltage in the float charge state to ...
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IPC IPC(8): G01R31/385
Inventor 陈明旭郎晟冯波茅为民李晖郑慷亮金琳峥杨灵诚付小平张军达陆强虞卫兵
Owner STATE GRID ZHEJIANG ELECTRIC POWER COMPANY TAIZHOU POWER SUPPLY