Intelligent-control power storage system with real-time battery cell monitoring function and method thereof

Abstract

The invention discloses an intelligent-control power storage system with a real-time battery cell monitoring function. A first group of intelligent control connecting lines to a fifth group of intelligent control connecting lines are controlled to dynamically separate out the designated battery cell in real time, so as to form a monitoring loop in which the battery cell is independently connected with a monitoring, control and managing system; and the monitoring system monitors the distributed battery cells in real time in a time-share parallel asynchronous control manner. Therefore, the cost is very low, a lot of power connecting lines are not required, and the reliability is improved; in addition, any battery cell in a battery pack can be separated out and detected independently so as to process the fault on line and in real time, hot backup can be automatically allocated and the fault cells can be intelligently switched, thereby realizing intelligent fault diagnosis, maintenance, allocation and interchange in an unattended operation manner. As a result, the timeliness of detection and maintenance of the storage battery system can be greatly improved, and the safety and the reliability of the system are effectively enhanced.

Description

technical field [0001] The invention belongs to the technical field of battery power storage and battery monitoring thereof, and in particular relates to an intelligent regulation and control power storage system and method with a real-time single battery monitoring function. Background technique [0002] In the current development process of human society from industrialization and electrification to modernization, especially the introduction and promotion of new energy, the application of power storage system and backup DC power supply is becoming more and more extensive. As an important part of power storage system and backup DC power supply The performance status of the storage battery is particularly important to ensure the normal operation of the storage system and the backup DC power supply. With the widespread use of power storage systems and backup DC power supplies, especially maintenance-free batteries, problems have gradually emerged, such as: [0003] Most main...

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Problems solved by technology

[0010] 1. The method of manual periodic inspection is simple, and the investment in testing tools and equipment can be more or less, but the workload is heavy, and the detection connection is easy to make errors due to poor contact, low efficiency, and the overall detection effect of the system is poor, and real-time processing cannot be realized , prone to system failure

[0011] 2. The existing centralized monitoring system for online connection uses the method of connecting each single battery in the battery pack formed by connecting in series or in parallel with the system test port, and adopts time-sharing control to connect each single battery one by one. Each group of power connecting wires of the single-cell battery is tested accordingly. Each group of power connecting wires is connected to the system port collectively, making the wiring numerous and messy, prone to errors, and a lot of wires are wasted. In particular, it is impossible to isolate the single battery and Independent comprehensive detection cannot complete real-time fault handling, and the detected electrical parameters have relatively large limitations

[0012] 3. The existing online connection distributed system method is to connect each battery to a detection circuit module, and connect each single battery in the battery pack formed by connecting in series or in parallel, and the signal line of the detection circuit module Compared with the c

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