Research and application of power operation and maintenance system in Shaanxi Normal University

Miao Jianmei 1 an Kerui Electric Co., Ltd., Jiading, Shanghai 201801; Abstract: with the gradual promotion and implementation of the national grid reform policy, the acrel cloud-1000 substation operation and maintenance cloud platform uses the Internet and big data technology to provide the university with the substation operation and maintenance cloud platform The platform is based on web development, using cloud platform and mobile app as the management and control tool of power distribution managers to monitor the operation status and power data of university power distribution system in real time The platform provides user profile, power data monitoring, power quality analysis, power analysis, daily / monthly / annual energy data report, abnormal event alarm and record, operation environment monitoring, operation and maintenance dispatch and other functions, and supports multi platform and multi terminal data access Key words: University; substation; operation and maintenance cloud platform; app; 0 Introduction     the traditional operation and maintenance manpower investment is large, the operation and maintenance efficiency is low, the response is slow and relatively passive, because only after the power distribution circuit fails can it be fed back to the operation and maintenance manager through the electric Hua or other ways, which can only achieve the effect of mending the past Therefore, it is more urgent to prevent the trouble before it happens It is particularly important to control the overall operation of each distribution room, not only for the monitoring of electrical parameters, but also for the real-time monitoring of the overall operation environment of the distribution room Once the operation environment is abnormal, the maintenance personnel should be reminded in time, when there is a potential trouble, the troubleshooting can be carried out in time, and the potential power consumption can be nipped in the bud                            和和和和和和和 Timely response and arrange maintenance personnel to the site for treatment 1 Design basis: the platform is developed according to the following standards: DL / T 5430-2009 technical code for design of remote monitoring center of unattended substation (GB / T 2887-2011 general code for computer site) (Q / GDW 231-2008 technical guide for unattended substation and monitoring center) (GB / T 32893-2016) Code for operation and management of 10 kV and above power user substation   Q / gdw11 enterprise standard substation operation and maintenance management code of Zhejiang electric power company   GB / T 13462-2008 economic operation of power transformer   GB / T 19862-2005 General requirements for power quality monitoring equipment   GB / T 14549-93 power quality - harmonics of public power grid   GB / T 23331-2009 energy management system requirements   GB / T 15316-2009 general rules for energy saving testing technology     GB / T 17166 general rules for energy audit technology of enterprises     GB / T 15587-2008 guidelines for energy management of industrial enterprises 2 project overview In October 2018, ankerui Electric Co., Ltd undertook the design and implementation of the operation and maintenance system for the distribution room in the East and West teaching area, the distribution room in the family area, and the 2 × box transformer in Yanta campus of Shaanxi Normal University The purpose of this system is to realize the centralized management and detection of the distribution system in Yanta campus of Shaanxi Normal University, and realize the 24% of the electrical parameters, switch status and environmental parameters of the distribution system It can be monitored 24 hours a day, and can give real-time warning through app, SMS and system                             3 System architecture                                                           The gateway can be set with trigger type alarm, trigger type active upload and breakpoint continuous transmission function The gateway's own memory can store field data for about 15 days After the network recovers, upload data from the breakpoint to ensure that the data is not lost In order to save traffic, the normal fluctuation data can be uploaded at 5-minute intervals, and the abnormal data (shift, over limit, etc.) can be uploaded and pushed to SMS and mobile app within 5 seconds 4 System function overview                                Transformer monitoring                           Power data    power data display the power data and curve of each circuit of the substation, including current, phase voltage, line voltage, frequency, power factor, active power, reactive power, apparent power and other parameters, and the chart can be derived Electric power operation report    electric power operation report shows the real-time value of electric parameters and electric energy of each circuit in different periods, as shown in the following figure: harmonic monitoring    harmonic monitoring shows the voltage harmonic content, current harmonic content of each circuit and the time when the big value and small value occur: electricity analysis                                     operation environment includes environment monitoring, video monitoring, environment temperature and humidity, instrument communication status and gateway communication status: video monitoring    video monitoring shows the real-time video image in the substation: 5 Prospect    according to the analysis of operation effect of the operation and maintenance cloud platform, the operation and maintenance cloud platform of acrelcloud-1000 substation has advantages:                      The platform can monitor the running state and power data of the power distribution system in Colleges and universities in real time, saving time and effort                           the platform provides user profile, power data monitoring, power quality analysis, power analysis, daily / monthly / annual energy data report, abnormal event alarm and record, operation environment monitoring, operation and maintenance dispatch and other functions, and supports multi platform, multi terminal data access Meet the needs of users in many aspects 6 Conclusion: using the Internet and big data technology, the acrelcloud-1000 substation operation and maintenance cloud platform provides real-time monitoring of the user's power distribution system operation status and power data, and provides more convenient and comprehensive operation and maintenance services for users Brief introduction of the author: Miao Jianmei, female, bachelor's degree, ankerui Electric Co., Ltd., whose main research direction is smart grid power supply and distribution