2results about How to "Avoid reignite" patented technology

The application discloses a kind of hybrid signal injection type capacitance current compensation method, system, equipment and medium based on parameter self-correction, is specifically related to electrical automation and digital technology field.The method comprises: by main station to distribution network inject wideband signal, response signal and zero sequence signal are collected by column device;Based on U1, I1 data, using improved recursive least square method on-line real-time identification line equivalent capacitance and resistance to ground, realize parameter self-correction;According to zero sequence voltage amplitude automatic switching signal injection method and displacement voltage method calculate capacitance current, and utilize Kalman filtering to carry out data fusion calibration;Finally based on identification parameter, through parameter-compensation amount mapping model dynamic determination arc suppression coil adjustment step size, carry out fast closed loop compensation.The application realizes on-line real-time identification and self-correction of distribution network capacitance parameter to ground, reaches fast, accurate compensation capacitance current under all-weather operation condition, ensures that system residual flow meets requirements.

The application belongs to the technical field of fuses, in particular to an outdoor high-voltage current-limiting fuse, comprising an epoxy tube; the upper and lower ends of the epoxy tube are respectively sleeved with an upper locking ring and a lower locking ring, a static contact is arranged on the upper locking ring, the static contact is installed below an anti-icing cover through bolts, and a first spring is installed on the static contact; in the application, a striker is independently arranged in a support column, a trigger branch and a main fuse passage are separated in structure, assembly complexity and interference risk in operation caused by passing of a constantan wire through a hole in the support column in traditional design are avoided; meanwhile, a connecting cavity and a plug-in connector structure are arranged in a connecting piece at the lower end, and a connecting wire in a rotating seat is matched, stable electrical leading-out is realized, and through a rotatable connecting frame design, the fuse is allowed to flexibly adjust an installation angle according to the direction of incoming and outgoing lines on site, and construction and maintenance in a complex outdoor environment are greatly facilitated.