The Research And Realization Of Power Remote Channel Monitoring Device

Building its own communication channels, to ensure the unimpededcommunication between the electric dispatch master station and substationis the imminent work of current dispatch automation system. In order toensure the dispatch automation system can accurately receive telecontrolinformation from comprehensive automatic equipment of transformersubstation, reduce the workload, and reduce the field troubleshooting time,we must develop power telecontrol channel testing device. The mainresults of this paper including:(1) By analyzing power telecontrol system structure, datacommunication system structure and common communication protocol isstudied and the different protocol characteristics is compared. According tothat, the main functions of substation remote control device anddispatching end telecontrol device are designed.(2) The using conditions of the testing device have been analyzed.Combined with the system structure of testing device, operating interfaceand display interface has been developed. Specific functions of eachmodule and parameters of the hardware have also been instructed in detail.The architecture of software function, processes of function realization,typical functional modules including channel monitoring, message analysisand data derived have been studied. A variety of software testing methodhas been introduced.(3)This thesis has revealed how the device obtaining the massages ofremote control, remote sensing and remote communication in the stationthat use the protocol of IEC101, together with the analysis of similaritiesand differences of the two massages that obtained in cases of normal and abnormal channel. The field operations showed the testing system’spracticability.The article finally has been summarized, and the further direction ofthe improvement is pointed out.