Remote discharge detection and maintenance system of communication storage battery pack

Abstract

The invention discloses a remote discharge detection and maintenance system of a communication storage battery pack, and relates to the technical field of a charge-discharge device of a storage battery pack. The system comprises a controller, a storage battery pack data acquisition module, a power grid data acquisition module, a charge-discharge control circuit and an inversion grid-connection module, wherein a signal input end of the storage battery pack data acquisition module is connected with the storage battery pack, the power grid data acquisition module is connected with a charging power grid of the storage battery pack, the charging power grid is divided into three paths sequentially by a rectifier and the charge-discharge control circuit, a first path is connected with a load, a second path is connected with the storage battery pack, a third path is connected with the inversion grid-connection module, and a control output end of the controller is connected with the charge-discharge control circuit and a control end of the inversion grid-connection module. The maintenance system has the characteristics of high discharge maintenance efficiency and application safety, and automatic charge and discharge can be achieved.

Description

technical field [0001] The invention relates to the technical field of charging and discharging devices for battery packs, in particular to a remote discharge detection and maintenance system for communication battery packs. Background technique [0002] The communication battery packs in substations need to be regularly checked and maintained every year. However, traditional battery discharges are time-consuming and labor-intensive, with low maintenance efficiency and safety risks, resulting in many battery packs not being effectively maintained. figure 1 It is a schematic diagram of the connection of the electric DC system that is not connected to the system. This way of increasing battery capacity by connecting batteries in parallel, and using the same rectifier for charging at the same time, the two sets of batteries are not isolated, there are the following potential safety hazards. [0003] 1) During the maintenance process of the first battery group, the second batte...

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