Method and device for detecting number of batteries running on line

Abstract

The invention discloses a method for detecting the number of batteries running on line. The method comprises the following steps: acquiring a terminal voltage value of each battery in a battery pack and the number S of batteries whose voltages are not 0; acquiring the terminal voltage Uh of the battery pack; calculating the sum Ux of the voltage values, acquired by the terminal voltage detection equipment, of the batteries; carrying out calculation according to measured data to obtain the number Y of actually running batteries; and judging whether the absolute value of Y-Z is larger than a preset first error value W1, and if yes, outputting warning information that the actual running number of the batteries is inconsistent with the set number of the batteries. The warning information can timely remind a worker that the actual number of running batteries is inconsistent with the set battery number, the worker timely corrects the set voltage value after obtaining the warning information,and the situation that the battery is in an overcharge state for a long time due to the fact that the actual running battery number Y and the set battery number Z are inconsistency information is nottimely obtained is avoided. The invention also discloses a device for detecting the number of the batteries running on line, and device is used for implementing the method.

Description

technical field [0001] The invention relates to the technical field of power system detection, and more specifically, to a method for detecting the number of batteries running online. In addition, the present invention also relates to a detection device for the online operation quantity of the battery implementing the above detection method for the online operation quantity of the battery. Background technique [0002] In the power system, power plants, substations and communication rooms all use DC systems to provide reliable working and power supply for relay protection devices, control circuits, monitoring equipment and communication equipment in the station. The DC system plays a very important role in the safe and stable operation of the power infrastructure. It is mainly composed of chargers, battery packs, battery inspection instruments, DC buses, monitors, ammeters, voltage transformers, switching or contact handles, and feeder units. composition. [0003] Among th...

AI Technical Summary

Problems solved by technology

However, the nuclear capacity or maintenance of the battery pack itself is often carried out by another professional staff, and the following two misoperations are prone to occur: the actual running battery is not checked, and the fixed value set according to the rated number of batteries is directly input into the monitor for execution; When the quality degrades and exits the operation, the corresponding fixed values ​​such as floating charge voltage and equalizing charge voltage are not changed in time

Any of the above misoperations will cause the whole set of batteries to be in an overcharged state for a long time, which will seriously damage the quality and life of the batteries, and even cause serious accidents such as protection refusal

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