The application of the hottest power monitoring so

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Application of power monitoring software in the distribution system of phase IV of Zibo oumu special paper industry

Abstract: This paper introduces the acrel-2000 power monitoring system software based on ankerui, which provides a basic platform for real-time data acquisition, switch state detection and remote control of the system with the help of computers, communication equipment, metering protection devices, etc. The system can provide enterprises with an overall solution to monitor the appearance of the integrated metal fatigue fracture surface, which is called fatigue fracture. The system realizes the function of unattended management of the microcomputer in the power distribution room, saves the disorder of the on-site operation of the personnel on duty, improves the quality of power supply and management level, and has the advantages of simplicity, practicality, low investment and so on

key words: power monitoring software; Network power instrument; OMU special paper 0 Introduction

in recent years, with the continuous improvement of the degree of modernization of electricity, the transformation and distribution stations will develop towards digitalization and intelligence. Intelligent electronic devices will be more and more used in the protection, control and measurement fields of power transformation and distribution stations. The application of power monitoring system can significantly improve the reliability and authenticity of data, so as to improve the standardization of management. The network power instrument installed on the monitoring side can communicate with the power monitoring system of substation and distribution station, which can provide sufficient power system status data, so as to improve the operation and maintenance level of the whole substation and distribution station

The application of acrel-2000 power monitoring software in Zibo oumu Special Paper Co., Ltd. successfully realizes the centralized collection of power parameters at the distribution side of the user end, and provides a reliable data basis and platform for PLGA to exist in a variety of situations such as microspheres, microcapsules, nanospheres and nanofibers for power monitoring and energy saving optimization of Zibo oumu Special Paper Co., Ltd

1 project introduction Zibo oumu Special Paper Co., Ltd. is a wholly-owned subsidiary of Shandong Qifeng Special Paper Co., Ltd. In 2003, the enterprise was named as the backbone enterprise of the national new material industrialization base by the Ministry of science and technology of the people's Republic of China. In 2004, it entered the national top 100 private enterprise tax ranking list. The company has Shandong enterprise technology development center, Shandong high-end decorative base paper engineering technology center and academician workstation. Professor Chen Kefu, the only academician of papermaking in China, served as the chief expert. The enterprise is a national key high-tech enterprise, one of the top ten papermaking enterprises in Shandong Province and a star enterprise in Zibo City. The Shuangfeng brand series of high-end decorative base paper products have won the titles of Shandong famous trademark and Shandong famous brand. The company has passed the ISO9001 international quality, ISO14001 international environment and OHSAS18001 safety three standard management system certification. In 2007 and 2008, it was rated as the first in the national sales volume and sales volume of the high-end decorative base paper industry by the National Bureau of statistics for two consecutive years, was rated as the top 50 enterprises with the most investment value in China in 2009 by the Chinese venture capital industry, and was rated as the enterprise with the most investment potential in China in 2009 by the CCTV securities information channel. The phase IV power monitoring system of Zibo oumu Special Paper Co., Ltd. aims at the ankerui intelligent power instruments installed in the switchgear of phase IV low-voltage distribution room in Zibo oumu Special Paper Co., Ltd. there are about 120 instruments on site. The monitoring room is located in the distribution room. The instruments in the distribution room are directly pulled to the serial server through rvvsp shielded twisted pair, and then connected with the background monitoring host for data transmission

2 user requirements

the system integration Department of Shanghai ankerui Electric Co., Ltd. carried out a detailed analysis on the problems to be solved by the phase IV power monitoring system of OMU special paper industry. After entering the European Aluminum Association (EAA), it carried out the collection of life cycle index data involving aluminum production and manufacturing enterprises in major European countries, After clarifying the requirements of the project sponsors and other stakeholders, the information system to be developed should solve the business problems of customers and users and the context of the problems, the power monitoring system should be informed by both parties that the monitoring information of voltage, current, power, power factor and frequency of each feeder circuit in each distribution room should be refreshed in real time, and the overall primary diagram of the distribution room should be visually and dynamically displayed; Complete the drawing of real-time and historical trend curves of voltage, current or power of each distribution circuit, so as to analyze the distribution operation conditions of the circuit; Complete the function of centralized reading of electric energy for each circuit, and automatically generate power consumption reports that meet the management needs of customers. All reports or charts support the function of query and printing; Alarm the communication status or abnormal power consumption of each monitoring point, which is convenient for managers to grasp and analyze the power distribution operation in real time. 3 design scheme

according to the requirements of reliability and efficient distribution management, as well as the principles of practicality, safety, real-time, stability, scalability and maintainability, Shanghai ankerui Electric Co., Ltd. provides the following design scheme for the transformation of the intelligent distribution system of phase IV of OMU special paper

3.1 reference standard

the design of the system meets the following manufacturing and test standards: iso/iec11801 international generic cabling standard

jgj/t code for electrical design of civil buildings gb/j code for design of electrical measuring instruments of power installations gb/t13730 general technical conditions of regional electrical data acquisition and monitoring system GBJ code for design of electrical measuring instruments of power installations gb2887 Technical requirements for computing station site GB/technical code for monitoring system engineering gb50254/code for construction and acceptance of electrical equipment installation engineering iec- graphic programmable standard GB code for design of power supply and distribution system dl/t/functional specification of distribution automation system IEC 61587 mechanical structure series of electronic equipment

3.2 group structure diagram topology to meet the requirements of unified monitoring of distribution room, The power meter of ankerui company is installed in the distribution room on site and connected to the serial port server hand in hand through shielded twisted pair. The serial port server is connected to the background host through five kinds of wires to realize the collection, storage, processing, real-time display and historical query of field data, as shown in Figure 1: Figure 14 main functions of the power monitoring system 4.1 data collection and processing

data collection is the basis of power distribution monitoring, The data acquisition is mainly completed by the bottom multi-function network instrument, which realizes the local real-time display of remote data. The signals to be collected include: three-phase voltage u, three-phase current I, frequency Hz, power P, power factor cos, electric degree EPI, remote equipment operation status and other data. Data processing is mainly to display the electric parameters collected according to the requirements to users in real time and accurately, so as to meet the automation and intelligence requirements of distribution monitoring, and at the same time, store the collected data in the database for users to query. 4.2 the human-computer interaction system provides a simple, easy-to-use and good user interface. It adopts the full Chinese interface, CAD graphics to display the primary electrical wiring diagram of the low-voltage distribution system, display the equipment status of the distribution system and the corresponding real-time operating parameters, and the screen is switched in regular rounds; Real time dynamic refresh of the picture; Analog quantity display; Switching value display; Continuous record display, etc

4.3 diachronic event diachronic event viewing interface mainly provides convenient and friendly human-computer interaction for users to view the fault records, signal records, operation records and out of limit records that have occurred. Through the historical event viewing platform, you can locate the historical events you want to view according to your own requirements and query conditions, providing good software support for you to grasp the operation of the whole system

4.4 database establishment and query

it mainly completes the timed collection of remote measurement and remote signaling volume, establishes a database, and generates reports regularly for users to query and print

4.5 user authority management set different authority groups for different levels of users to prevent the loss of production and life caused by human misoperation, and realize the safe and reliable operation of power distribution system. User login, user logout, password modification, addition and deletion and other operations can be carried out through user management to facilitate the modification of user accounts and permissions

4.6 operation load curve load trend curve function is mainly responsible for regularly collecting incoming line and important circuit current and power load parameters, and automatically generating operation load trend curve, so that users can timely understand the operation load status of equipment. Click the corresponding button or menu item on the screen to complete the switching of corresponding functions; You can view the real-time trend curve or historical trend line; The selected curve can be translated, scaled, and range changed, which helps the user to analyze the incoming line trend and recall the fault, and provides intuitive and convenient software support for analyzing the operation status of the whole system

4.7 the main function of the remote report query report management program is to design the report style according to the needs of users, and generate the report data required by users through screening, combination and statistics of the data processed in the system. This program can also adopt the mode of regular saving and printing or calling saving and printing according to the needs of users. At the same time, this program also provides users with the function of managing the generated report files. The report has the functions of freely setting the query time, realizing the power statistics of day, month and year, data export and report printing. 5 system case analysis the upper computer software is acrel-2000 power monitoring system configuration software, which has a friendly human-computer interaction interface, which can collect all electrical parameters and switching value states of field equipment in real time and regularly, and upload the collected data to the monitoring host for real-time display and storage. The system also provides real-time curve and historical trend curve analysis, reports, event records, fault alarms and other functions that meet the needs of user design. The whole system can collect and count the power consumption of all circuits, and realize the functions of remote automatic meter reading, power monitoring and power management

5.1 the data acquisition and system diagram shows that the field instrument measures and collects the loop data information, and the upper computer software then collects and stores the data of the field instrument at a fixed time or cycle, and can freely set the acquisition time cycle and the minimum acquisition cycle supported by the system. You can check the instantaneous meter value, cumulative quantity and other information of any meter at any time, and record the voltage, current, power factor and active kwh of the power meter within the time interval. These parameter information can be automatically saved to the database for easy query. The system has a friendly man-machine interface, which is convenient for ordinary on-site personnel on duty to view and record relevant information. The primary diagram of the system (as shown in Figure 2) not only displays the switching state of the line, but also displays important power parameters such as voltage, power, active power and so on in real time. All data information is saved to the database regularly. Figure 2

5.2 the remote meter reading system can display all the collected data in real time and save it to the database, so it can manually query all the real-time and historical electrical parameter data of each circuit, and show it to the user in the form of tables, which is convenient for printing and saving. As shown in Figure 3. Figure 3

5.3 trend curve: real time trend display and historical trend query function of current and power of each important circuit. After selecting a circuit, the real-time trend curve of the circuit will be constantly refreshed. Select the starting time to view the historical trend curve of the circuit, and select the time length to view the historical trend curves of days, months and years, which can more intuitively reflect the operation of the circuit, as shown in Figure 4: Figure 4

5.4 alarm prompt and query interface:

power monitoring system real-time and historical alarm interface, and the real-time alarm will pop up the alarm window prompt, The historical alarm is obtained through query, as shown in Figure 5 and Figure 6 below: Figure 5 Figure 65 the effect analysis after the implementation of the project realizes centralized data collection,

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