A detection method and detection device for the number of batteries running online

Abstract

The invention discloses a method for detecting the number of batteries running online, comprising: acquiring the terminal voltage value of each battery in the battery pack and the number S of batteries whose voltage value is not zero; acquiring the terminal voltage U of the battery pack h ; Calculate the sum U of the voltage values ​​of each cell obtained by the terminal voltage detection device x ;According to the measured data, calculate the actual running battery quantity Y; determine whether |Y‑Z| is greater than the preset first error value W 1 , if yes, then output a warning message that the actual running battery quantity is inconsistent with the set battery quantity. The warning information can promptly remind the staff that the actual number of batteries running is inconsistent with the number of set batteries. After receiving the warning information, the staff can correct the set voltage value in time to avoid the inconsistency between the number of actually running batteries Y and the number of batteries set Z that cannot be obtained in time, causing the battery to be in a long-term overcharged state. The invention also discloses a detection device for the online operation quantity of the battery implementing the above 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

Images