Module, system and method for detecting a string fault

Abstract

The present disclosure relates to module comprising a first module terminal for coupling to a first battery node of a battery via a first connecting string, a second module terminal for coupling to a second battery node of the battery via a second connection string, a base module terminal for coupling to a base battery node of the battery via a base connection string, wherein a first module string of the module extends from the first module terminal to a first module node of the module, wherein a second module string of the module extends from the second module terminal to a second module node of the module, wherein a first current source is coupled between the base module terminal and the first module node, wherein a control unit of the module is coupled to the first current source and is configured to control the first current source to activate a generation of a first current in the first module string via the first current source, wherein a first sensor unit of the module is coupled to the first and second module nodes, wherein the first sensor unit is configured to detect a first test voltage between the first module node and the second module node while the first current is flowing, and wherein the control unit is configured to detect a first string fault in the first connection string based on the first test voltage. The present disclosure also relates to a system including the module and a method for the module.

Dependencies are inferred from the claim text.