Secondary battery detection system and control method thereof

Abstract

The embodiment of the invention discloses a secondary battery detection system. The secondary battery detection system comprises an internal power grid, a detected unit comprising a secondary battery, an electric energy buffering module and a main controller, wherein the detected unit is connected to the internal power grid and the main controller, and charging and discharging of the secondary battery are carried out under the control of the main controller; the electric energy buffering module is connected to the internal power grid and the main controller and is further connected to an external power grid; and the main controller is configured in such a manner that once the electric energy input to the internal power grid by the detected unit is detected to be larger than the electric energy needed by the internal power grid, the electric energy buffering module is controlled to store redundant electric energy, and once the electric energy input to the internal power grid by the detected unit is detected to be smaller than the electric energy needed by the internal power grid, the electric energy buffering module is controlled to supply the missing electric energy to the internal power grid. The invention further discloses a method for controlling the detection system. By adopting the detection system and the control method, the safety risks of the secondary battery detection system are reduced.

Description

technical field [0001] The present invention relates to the detection of charge and discharge performance of a secondary battery, and more specifically, to a secondary battery detection system and a control method thereof. Background technique [0002] In various portable electronic devices, the use of batteries is indispensable. Among all kinds of batteries, chemical batteries have become the most widely used category due to their advantages such as mature technology, low price, stable discharge performance, and high energy conversion efficiency. According to the specific use method and nature of the power supply, chemical batteries can be divided into four categories: primary batteries, storage batteries, reserve batteries and fuel cells. Among them, primary batteries are also called primary batteries, which can only perform one discharge process; The storage battery is also called a secondary battery. After the discharge process is over, it can be restored to the state b...

AI Technical Summary

Problems solved by technology

In fact, for legal and security considerations, only power production enterprises can supply power to the State Grid, and other enterprises can only use electricity from the State Grid and cannot supply power to the State Grid. not allowed

Therefore, the energy feedback method of the current energy feedback secondary battery detection system has certain risks and needs further improvement

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