ARC SPECTRUM IDENTIFICATION METHOD AND APPARATUS

An arc spectrum identification method and apparatus, which belong to the technical field of power system relay protection. In the method, an intrinsic spectrum of an electric arc is quickly found by using a Euclidean distance, minimizing a target function and using a spectral threshold truncation method; and a signal is then sent to a protection control apparatus, such that the protection control apparatus outputs alarm and tripping signals conveniently. By means of the method, a high action speed, convenient mounting and debugging, high expandability, high reliability, and great cost performance are achieved. The arc spectrum identification apparatus is developed according to to an arc spectrum identification method, and particularly, after a spectrum identification apparatus of this type is additionally mounted on an existing switch cabinet, the existing switch cabinet can operate more reliably and more safely. La présente invention concerne un procédé et un appareil d'identification de spectre d'arc, qui s