Storage battery internal resistance real-time monitoring device and monitoring method thereof

Abstract

The invention discloses a storage battery internal resistance real-time monitoring device and a monitoring method thereof, and the device comprises a control terminal which is used for carrying out the real-time control of each element in the storage battery internal resistance real-time monitoring device according to the real-time operation instruction of an operator, and is also used for receiving the real-time data detected by each element in the storage battery internal resistance real-time monitoring device, and issuing corresponding maintenance instructions according to the detection data. According to the invention, a battery collector and an internal resistance test unit cooperate with each other, so that the internal resistance value of a storage battery pack can be accurately calculated while the storage battery pack discharges, and the health state of the storage battery pack at the moment can be calculated according to the internal resistance change ratio; and meanwhile, a battery monitoring and maintenance unit is matched, and a maintenance module is used for controlling an auxiliary power supply to charge each single battery of the storage battery pack, so that the voltage of each single battery of the online used storage battery pack tends to be consistent, the capacity of each single battery can be ensured to be fully charged, the service lives of the storage batteries are prolonged, and practical application is facilitated.

Description

technical field [0001] The invention belongs to the field of storage battery monitoring, in particular to a real-time monitoring device and a monitoring method for the internal resistance of a storage battery. Background technique [0002] In the prior art, the DC operating power system of the substation is an important component equipment to ensure the safe and stable operation of the substation equipment. It provides uninterrupted power supply for the load in the event of an AC power failure. With the improvement of the level, the capacity of the battery is increasing, and the cost of the battery is also increasing. The proportion of the cost of the battery pack in the whole set of equipment is far greater than that of the rectifier power supply. With the development of intelligent substation technology and unattended substation To promote the construction, for the DC operating power system and its battery, it has become an urgent problem to realize effective remote mainte...

AI Technical Summary

Problems solved by technology

[0003] However, when the existing real-time monitoring device for internal resistance of the battery is used, it can only simply evaluate and monitor the internal resistance of the battery pack in the substation, which not only leads to poor accuracy of the monitoring results, but also cannot be evaluated in time based on the monitoring results of the internal resistance. The health status of the battery pack at this time makes it impossible to maintain the battery pack in time, which is not conducive to practical application

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