Lightning arrester on-line monitoring system plays a very important role in the operation of power system,its reliability directly affects the safe and stable operation of power grid.The on-line monitoring system for lightning arrester can state information acquisition equipment remote,is very effective for monitoring the running state of means,by detecting the operating conditions of the arrester and insulation to judge the performance of the lightning arrester,provide the basis for the evaluation of the status of equipment and maintenance strategy for.In this way,it can be timely and correct to replace the insulation performance of the aging or unqualified lightning arrester,and it can reduce the economic losses caused by lightning arrester accident.There are many problems in the application of the on-line monitoring system,such as the reliability of on-line monitoring and the accuracy of the test whether there is interference caused by false positives and false reports?Is there any way to eliminate interference?All of these will affect the judge’s judgment on the operation of the equipment and the application of the on-line monitoring system in fault analysis.This paper launches the research on the above problems,the online monitoring system for lightning protection in Fuzhou area,for precision and stability test,how to affect the environment,the test results of the screening and screening of effective data are discussed.Combined with the structural characteristics of the equipment,using the method of mathematical analysis,the data selection method is proposed.This paper introduces the background and significance of the Fuzhou area arrester online monitoring,through access to information,to further understand the development and research status at home and abroad arrester online monitoring,analyzes the existing problems in the process of actual monitoring.Then,this article from the demand and application background for online monitoring system of Fuzhou area of lightning protection,based on the analysis of the lightning arrester online monitoring principle,put forward the overall design scheme of the Fuzhou area of on-line monitoring system for lightning arrester,and the on-line monitoring system of hardware,software and communication aspects of the design,from multiple electronic sensor,voltage monitoring unit,environmental monitoring unit and analysis of advantages and disadvantages,and discusses the communication system and client software using the method.Then,in the Fuzhou area were designed in the main form and function of the on-line monitoring system for lightning arrester,and gives the reference software for online monitoring of lightning arrester standards and norms;on the structure,function of each unit of the OMDS online monitoring and diagnosis system software structure and the method of application and analysis.According to the actual application process,this paper also discussed the interference problem of online monitoring system of Fuzhou area is lightning encountered in operation and the causes of interference are analyzed,combined with the live test for arrester currently used in Fuzhou area in the monitoring system for data analysis and verification of reliability. |