Collection wire wiring structure for detecting voltage of energy storage type sodium-sulfur battery module

Abstract

The invention discloses a collection wire wiring structure for detecting voltage of an energy storage type sodium-sulfur battery module. The collection wire wiring structure comprises the energy storage type sodium-sulfur battery module arranged inside a thermal insulating box, and a battery management unit, wherein the energy storage type sodium-sulfur battery module consists of a plurality of parallel-connection battery packs which are connected in series; each parallel-connection battery pack is formed by connecting a plurality of sodium-sulfur battery series-connection units in parallel; each sodium-sulfur battery series-connection unit is formed by sequentially connecting a plurality of single sodium-sulfur batteries in series; and voltage collection wires, which are respectively led out from a random point except the both ends of each sodium-sulfur battery series-connection unit and are led out from the same side end of each parallel-connection battery pack, are connected with the battery management unit. With the adoption of the collection wire wiring structure provided by the invention, the quality of the voltage collection wires led out from the thermal insulating box is greatly reduced, and the assembly process is simplified, so that a wiring manner is relatively sensitive, a heat radiation channel of the thermal insulating box is further reduced, and the thermal insulating box keeps a constant temperature. Meanwhile, the volume of data collected by the battery management unit is further greatly reduced, and system resources can be saved.

Description

technical field [0001] The invention relates to an energy storage sodium-sulfur battery module voltage detection technology, in particular to a collection line wiring structure for voltage detection of an energy storage sodium-sulfur battery module. Background technique [0002] Usually, in the energy storage sodium-sulfur battery module, the voltage of all batteries needs to be measured and recorded, and the detection of the voltage of a single battery in the module is one of the criteria for judging the quality of the battery. [0003] However, in the energy storage sodium-sulfur battery module, the number of megawatt-level battery module sodium-sulfur batteries connected to the grid is huge, and detecting the voltage of each battery will bring a huge burden to the system, and the operating temperature of the sodium-sulfur battery is Between 300°C and 350°C, a relatively uniform temperature field is required. How to reduce the voltage acquisition line in the energy storage...

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Problems solved by technology

[0003] However, in the energy storage sodium-sulfur battery module, the number of megawatt-level battery module sodium-sulfur batteries connected to the grid is huge, and detecting the voltage of each battery will bring a huge burden to the system, and the operating temperature of the sodium-sulfur battery is Between 300°C and 350°C, a relatively uniform temperature field is required. How to reduce the voltage acquisition line in the energy storage sodium-sulfur battery module is one of the research directions for those skilled in the art.

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