Balance maintenance system for online monitoring of storage battery

Abstract

The invention relates to the field of energy engineering, in particular to a balance maintenance system for online monitoring of a storage battery. The system comprises a host and an acquisition module and the host is electrically connected with the acquisition module. The host comprises a central processing unit, a front panel face, a right panel face and an upper panel face; and the acquisitionmodule comprises an upper panel face, a front panel face and a lower panel face. The front panel face comprises a main equipment liquid crystal display unit and a functional keyboard unit; a USB interface, an Ethernet interface, an upper computer RS485 data transmission port, a lower computer RS485 data transmission port and a main power supply interface are arranged on the right panel face; the upper panel face is provided with an internal resistance test interface, a flexible connection test interface, a voltage acquisition line interface, a current test line interface and a temperature acquisition line interface. According to the balance maintenance system for online monitoring of a storage battery, he voltage and current of a storage battery pack and the voltage and internal resistanceof each single battery can be detected simultaneously and online balance maintenance, check discharge maintenance and capacity test functions can be provided, so that the efficiency and economic benefits of production work are improved.

Description

technical field [0001] The invention relates to the field of energy engineering, in particular to a balanced maintenance system for on-line monitoring of storage batteries. Background technique [0002] In the substation DC system, the stability and discharge capacity of the battery play a decisive role in the safe operation of the DC system. With the comprehensive transformation of the unattended substation in the power system, in order to ensure the safe and efficient operation of power production, the condition-based maintenance of power equipment requires higher At present, the power supply company has applied the equipment in the DC system of each substation, including the battery monitoring system. At present, the detection of the DC system equipment in the world only stays in part of the remote measurement and remote signaling, such as the combined mother / control mother of the DC screen. Voltage, charging module and insulation monitoring fault signals, etc. When the e...

AI Technical Summary

Problems solved by technology

[0003] Each device is still in a state of silos, with independent channel setting, independent configuration of servers, and decentralized management of each department, which not only wastes device resources, but also increases management and maintenance costs, and device information cannot be shared. In addition, there are many smart devices. Type equipment is being gradually applied. The operating status of the DC system and the operation information of each DC feeder circuit can be monitored in a timely manner, but it cannot guarantee the normal power supply of various DC loads and the abnormal handling of devices, resulting in the expansion of power grid and equipment accidents. At present, the international The detection of valve-regulated batteries mainly includes real-time monitoring of battery floating charge voltage, checking discharge and internal resistance detection. How to realize remote dynamic and static discharge to improve the efficiency of detection and avoid the cumbersome manual on-site detection is the current problem. Emphasis and difficulties, various methods have different emphases, each has advantages and disadvantages, how to construct a unified management platform, not only can keep abreast of the operation status of the DC equipment without leaving the house, and avoid the failure caused by the intermediate communication of the operator The information misrepresentation will delay the maintenance period, and the performance of the battery can be judged comprehensively through the complementarity of various detection methods, so as to improve the accuracy of judgment and predict the performance change trend of the battery. This is the current focus and difficulty.

Images