On-line Monitoring System For Insulators On HV Lines Based On GSM And Fuzzy Logic Diagnostic Technologies

The insulators on HV lines often run in the scurviness environment of strong electric field magnetic field,mechanism stress,soilage corrade , so insulators often appear interior cranny exterior disrepair impedance fall ,severity threaten the safety run of power system . the trait of insulators are: extensive of distributing range ,the transmit electricity wire can extend from several kilometer to several thousand kilometer , high install place, commonly install in several decameter high ,at present inside and outside nation have a lot of check method about insulators ,and acquire the sated effect , but also have a lot of shortage ,daily testing need scout along transmit electricity wire ,need ascend tower ,great workload high fatalness ,difficult to realization examine in time , so the result not enough nicety and cannot combine examine date and diagnose of malfunction.Along with the development of computer,new energy sources,communicate,tiny electricity collection in strong electromagnetism , these technology provide guarantee for the research of on line examine ,this article design and realization the on line monitoring system ,aim at the severity and variety burst out accident on high voltage and super high voltage transmit electricity wire . via real time ,long-distance monitor realize the function of insulators ,synthesis the value of the leakage current, the park value of the leakage current, the amplitude and times of the pulses of the leakage current sensors , utilize current analyse technology ,analysis the security status of insulators give an alarm about hidden trouble insulators ,guidance worker take measure , provide the science gist for examine and repair of transmit electricity wire .Along with the power system development with automation and communication , require the system combine long-distance monitor and diagnose of malfunction ,so this article spread several Elementary investigate work .The solution is proposed for the remote distributed on-line detection system and centralized fuzzy logic diagnostic system of insulators on HV lines based on GSM network. In its on-site unit, the r.m.s. value of theleakage current, the park value of the leakage current, the amplitude and times of the pulses of the leakage current sensors are obtained. These data are preprocessed in a DSP chip and then transmitted to GSM wireless communication networks. The background unit receives and manages the on-site data. Based on fuzzy logic technologies, the operating condition of insulators on a whole HV line can be diagnosed.