Design and Application of Fuqing Yuronghui Power Management System
2024-10-07 18:00:08
This paper introduces the Fuqing Yuronghui power management system, which uses intelligent power meters to collect various electrical parameters of the power distribution site. The system adopts the on-site local networking mode. After networking, the instrument data is uploaded to the background through the field bus, and the Acrel- The 3000 power management system realizes real-time monitoring and power management of the power distribution circuit of the merchant.
Yang Junjun
Ankerui Electric Co., Ltd., Shanghai Jiading
0 Overview
Fuqing Yuronghui is located in Fuhe Avenue, Fuqing City, Fujian Province (next to the center of the two halls). With a new international business concept, Yuronghui has planned a top-level urban complex of 270,000 square meters and built a 110,000 seat in Fuqing. Pingmi "top family experience shopping mall", 31,000 square meters super class A 5A skyscraper office, 46,000 square meters no sight from the front of the luxury house, 5000 square meters presidential villa club.
This project is Fuqing Yuronghui Power Management System. According to the requirements of the distribution system management, it is necessary to conduct electricity monitoring and management on the electricity distribution lines of the floor distribution box merchants of Fuqing Yuronghui to ensure the safety, reliability and efficiency of electricity consumption.
The Acrel-3000 low-voltage intelligent power distribution system makes full use of the latest developments in modern electronic technology, computer technology, network technology and fieldbus technology, and performs distributed data collection and centralized monitoring and management of the power distribution system. The secondary equipment of the power distribution system is networked, and the field devices of the distributed power distribution box are connected as an organic whole through the computer and the communication network to realize remote monitoring and centralized management of the power grid operation.
1 System structure description
The monitoring system mainly realizes the power consumption monitoring and power management of the floor distribution box merchants' electric power inlet and outlet lines of Fuqing Yuronghui; the monitoring scope is the electricity outlet line meters distributed by the distribution households of the electric wells on the floor, for these multifunctional instruments Remote real-time monitoring and power management. The system has a total of 368 DTSY1352-C meters, divided into 16 buses, collected by the serial server, transmitted to the duty room monitoring host, to achieve data connectivity between the instrument on the bus and the monitoring host.
The monitoring system adopts a hierarchical distributed structure, that is, the station control layer, the communication layer and the interval layer; as shown in Figure (1):
.png)
Figure (1) Network topology diagram
The interval device layer is mainly: multi-function network power meter and circuit breaker. These devices are respectively installed in the electrical cabinet corresponding to the corresponding primary equipment, and the instrument adopts the RS485 communication interface to realize data field collection through the on-site MODBUS bus networking communication.
The network communication layer is mainly: communication server, its main function is to collect the scattered devices in the field, and remotely transmit to the station control layer to complete the data interaction between the field layer and the station control layer.
Station control management: equipped with high-performance industrial computers, monitors, UPS power supplies, printers and other equipment. The monitoring system is installed on the computer to collect and display the running status of the field device and display it to the user in the form of human-computer interaction.
The above network instruments all use RS485 interface and MODBUS-
RTU communication protocol, RS485 adopts shielded cable transmission, generally adopts two connections, the wiring is simple and convenient; the communication interface is half-duplex communication, that is, both sides of the communication can receive and transmit data but can only send or receive data at the same time. The maximum data transfer rate is 10Mbps.
The RS485 interface is a combination of balanced driver and differential receiver. It has enhanced noise immunity and allows up to 32 devices to be connected on the bus with a maximum transmission distance of 1.2km.
2 main functions of the power management system
2.1 Data Acquisition and Processing
Data collection is the basis of power distribution monitoring. Data acquisition is mainly completed by the underlying multi-function network instrument, realizing local real-time display of remote data. The signals that need to be collected include: three-phase voltage U, three-phase current I, accumulated power consumption, and remaining power.
The data processing is mainly to display the electrical parameters collected according to the requirements to the user in real time, to meet the automation and intelligent requirements of the power distribution monitoring, and to store the collected data in the database for the user to inquire.
2.2 Human-computer interaction
The system provides a simple, easy to use, and good user interface. The full Chinese interface is used to display the status of the power distribution system equipment and the corresponding real-time operating parameters, and the screen is dynamically refreshed in real time; the analog display is displayed.
2.3 Historical events
The diachronic event viewing interface mainly provides convenient and friendly human-computer interaction for the user to view the fault records, signal records, operation records and over-limit records that have occurred. Through the historical event viewing platform, you can conveniently locate you according to your own requirements and query conditions. The historical events to be viewed provide good software support for you to grasp the operation of the entire system.
2.4 Database Establishment and Query
It mainly completes remote measurement and remote signal timing collection, and establishes a database to generate reports on a regular basis for users to query and print.
2.5 User Rights Management
For different levels of users, set different permission groups to prevent the loss of production and life caused by human error, and achieve safe and reliable operation of the power distribution system. Users can log in, log out, change passwords, add deletes, etc. through user management, which is convenient for users to modify accounts and permissions.
2.6 Remote Report Query
The main function of the report management program is to design the report style according to the needs of the user, and filter the data processed in the system to generate the report data required by the user. The program can also use the timed save, print or summon save and print mode for the report file according to the user's needs. At the same time, the program also provides users with the function of generating report file management.
The report has the function of freely setting the query time to realize the energy statistics, data export and report printing of day, month and year.
3 Case analysis
Fuqing Yuronghui Power Management System conducts power monitoring and power management for the electricity distribution loops of the floor distribution box merchants.
The floor distribution box circuit adopts DTSY1352-C rail type power meter, which is a network power meter designed for the power management needs of schools, commercial complexes and intelligent buildings. It can measure conventional power parameters such as three-phase voltage and current. , a variety of electrical parameters such as active energy. The instrument supports plug-in prepaid and has 1 relay control output contact. These contacts can be used with the intelligent circuit breaker to realize the remote operation of the circuit breaker.
The secondary diagram of the low-voltage power distribution is shown in Figure (3). The function mainly monitors the accumulated power and remaining power. When the remaining power is insufficient, the user is reminded to handle the recharge in time.
.png)
Figure (3) Low-voltage distribution secondary diagram
The telemetry alarm function mainly monitors the load of each low-voltage outlet circuit. The load exceeds the limit and pops up the alarm interface to indicate the specific alarm position and sounds an alarm, reminding the on-duty personnel to deal with it in time. The load limit is freely set under the corresponding authority. With historical query function. See Figure (4).
.png)
Figure (4) Real-time telemetry alarm information
The parameter meter reading function mainly queries the electric parameters of the low-voltage outlet circuits. Supports electrical parameter query at any time, with functions such as data export and report printing. The report queries the electrical parameters of the outgoing loop, including: three-phase voltage, three-phase current, and accumulated power and remaining power. The loop name of the report is associated with the database, which is convenient for the user to modify the loop name. See picture (5).
.png)
Figure (5) Parameter reading
The power consumption report function can select the time period for query, support the electricity cumulative query for any time period, and have the functions of data export and report printing. Provide accurate and reliable energy reports for duty personnel. The loop name of the report is associated with the database, which is convenient for the user to modify the loop name. As shown in the figure below, the accurate power consumption of each power distribution circuit in a certain period of time is displayed. The user can directly print the report and save it to other locations in EXCEL format. See Figure (6).
.png)
Figure (6) Energy report
The schematic diagram of the system communication structure mainly shows the networking structure of the system. The system adopts a layered distributed structure and monitors the communication status of the interval layer devices. Red indicates normal communication and green indicates communication failure. The picture green indicates the merchant meter that is not in use. See Figure (7).
.png)
Figure (7) Schematic diagram of system communication structure
4 Conclusion
With the development of society and the wide application of electric power, electric energy system has become an inevitable choice for large-scale electricity users such as key projects, landmark buildings/large public facilities throughout the country. The Acrel-3000 power management system introduced in this paper is in Fuqingyu. The application of Ronghui can realize real-time monitoring and power management of the power distribution of the floor distribution circuit. The system realizes the analysis and processing of the collected data, and displays the running status of each distribution circuit in the floor in real time. Insufficient to pop-up alarm dialog box and voice prompts, and generate various energy reports, etc., to facilitate remote meter reading and analysis and research of electrical energy. The system is safe, reliable and stable, and provides a real and reliable basis for commercial users to solve the problem of power management, and has achieved good social benefits. [2]
references:
[1]. Ren Zhicheng Zhou Zhong. Principles and Application Guidelines of Power Electrical Measurement Digital Instrumentation [M]. Beijing. China Electric Power Press. 2007. 4
[2]. Zhou Zhongbian. Smart grid customer power monitoring and power management system product selection and solution [M]. Beijing. Mechanical Industry Press. 2011.10
About the Author
Yang Junjun, female, undergraduate. Position: Now working for Ankerui Electric Co., Ltd., contact number, mobile phone, QQ
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
Yang Junjun
Ankerui Electric Co., Ltd., Shanghai Jiading
0 Overview
Fuqing Yuronghui is located in Fuhe Avenue, Fuqing City, Fujian Province (next to the center of the two halls). With a new international business concept, Yuronghui has planned a top-level urban complex of 270,000 square meters and built a 110,000 seat in Fuqing. Pingmi "top family experience shopping mall", 31,000 square meters super class A 5A skyscraper office, 46,000 square meters no sight from the front of the luxury house, 5000 square meters presidential villa club.
This project is Fuqing Yuronghui Power Management System. According to the requirements of the distribution system management, it is necessary to conduct electricity monitoring and management on the electricity distribution lines of the floor distribution box merchants of Fuqing Yuronghui to ensure the safety, reliability and efficiency of electricity consumption.
The Acrel-3000 low-voltage intelligent power distribution system makes full use of the latest developments in modern electronic technology, computer technology, network technology and fieldbus technology, and performs distributed data collection and centralized monitoring and management of the power distribution system. The secondary equipment of the power distribution system is networked, and the field devices of the distributed power distribution box are connected as an organic whole through the computer and the communication network to realize remote monitoring and centralized management of the power grid operation.
1 System structure description
The monitoring system mainly realizes the power consumption monitoring and power management of the floor distribution box merchants' electric power inlet and outlet lines of Fuqing Yuronghui; the monitoring scope is the electricity outlet line meters distributed by the distribution households of the electric wells on the floor, for these multifunctional instruments Remote real-time monitoring and power management. The system has a total of 368 DTSY1352-C meters, divided into 16 buses, collected by the serial server, transmitted to the duty room monitoring host, to achieve data connectivity between the instrument on the bus and the monitoring host.
The monitoring system adopts a hierarchical distributed structure, that is, the station control layer, the communication layer and the interval layer; as shown in Figure (1):
Figure (1) Network topology diagram
The interval device layer is mainly: multi-function network power meter and circuit breaker. These devices are respectively installed in the electrical cabinet corresponding to the corresponding primary equipment, and the instrument adopts the RS485 communication interface to realize data field collection through the on-site MODBUS bus networking communication.
The network communication layer is mainly: communication server, its main function is to collect the scattered devices in the field, and remotely transmit to the station control layer to complete the data interaction between the field layer and the station control layer.
Station control management: equipped with high-performance industrial computers, monitors, UPS power supplies, printers and other equipment. The monitoring system is installed on the computer to collect and display the running status of the field device and display it to the user in the form of human-computer interaction.
The above network instruments all use RS485 interface and MODBUS-
RTU communication protocol, RS485 adopts shielded cable transmission, generally adopts two connections, the wiring is simple and convenient; the communication interface is half-duplex communication, that is, both sides of the communication can receive and transmit data but can only send or receive data at the same time. The maximum data transfer rate is 10Mbps.
The RS485 interface is a combination of balanced driver and differential receiver. It has enhanced noise immunity and allows up to 32 devices to be connected on the bus with a maximum transmission distance of 1.2km.
2 main functions of the power management system
2.1 Data Acquisition and Processing
Data collection is the basis of power distribution monitoring. Data acquisition is mainly completed by the underlying multi-function network instrument, realizing local real-time display of remote data. The signals that need to be collected include: three-phase voltage U, three-phase current I, accumulated power consumption, and remaining power.
The data processing is mainly to display the electrical parameters collected according to the requirements to the user in real time, to meet the automation and intelligent requirements of the power distribution monitoring, and to store the collected data in the database for the user to inquire.
2.2 Human-computer interaction
The system provides a simple, easy to use, and good user interface. The full Chinese interface is used to display the status of the power distribution system equipment and the corresponding real-time operating parameters, and the screen is dynamically refreshed in real time; the analog display is displayed.
2.3 Historical events
The diachronic event viewing interface mainly provides convenient and friendly human-computer interaction for the user to view the fault records, signal records, operation records and over-limit records that have occurred. Through the historical event viewing platform, you can conveniently locate you according to your own requirements and query conditions. The historical events to be viewed provide good software support for you to grasp the operation of the entire system.
2.4 Database Establishment and Query
It mainly completes remote measurement and remote signal timing collection, and establishes a database to generate reports on a regular basis for users to query and print.
2.5 User Rights Management
For different levels of users, set different permission groups to prevent the loss of production and life caused by human error, and achieve safe and reliable operation of the power distribution system. Users can log in, log out, change passwords, add deletes, etc. through user management, which is convenient for users to modify accounts and permissions.
2.6 Remote Report Query
The main function of the report management program is to design the report style according to the needs of the user, and filter the data processed in the system to generate the report data required by the user. The program can also use the timed save, print or summon save and print mode for the report file according to the user's needs. At the same time, the program also provides users with the function of generating report file management.
The report has the function of freely setting the query time to realize the energy statistics, data export and report printing of day, month and year.
3 Case analysis
Fuqing Yuronghui Power Management System conducts power monitoring and power management for the electricity distribution loops of the floor distribution box merchants.
The floor distribution box circuit adopts DTSY1352-C rail type power meter, which is a network power meter designed for the power management needs of schools, commercial complexes and intelligent buildings. It can measure conventional power parameters such as three-phase voltage and current. , a variety of electrical parameters such as active energy. The instrument supports plug-in prepaid and has 1 relay control output contact. These contacts can be used with the intelligent circuit breaker to realize the remote operation of the circuit breaker.
The secondary diagram of the low-voltage power distribution is shown in Figure (3). The function mainly monitors the accumulated power and remaining power. When the remaining power is insufficient, the user is reminded to handle the recharge in time.
Figure (3) Low-voltage distribution secondary diagram
The telemetry alarm function mainly monitors the load of each low-voltage outlet circuit. The load exceeds the limit and pops up the alarm interface to indicate the specific alarm position and sounds an alarm, reminding the on-duty personnel to deal with it in time. The load limit is freely set under the corresponding authority. With historical query function. See Figure (4).
Figure (4) Real-time telemetry alarm information
The parameter meter reading function mainly queries the electric parameters of the low-voltage outlet circuits. Supports electrical parameter query at any time, with functions such as data export and report printing. The report queries the electrical parameters of the outgoing loop, including: three-phase voltage, three-phase current, and accumulated power and remaining power. The loop name of the report is associated with the database, which is convenient for the user to modify the loop name. See picture (5).
Figure (5) Parameter reading
The power consumption report function can select the time period for query, support the electricity cumulative query for any time period, and have the functions of data export and report printing. Provide accurate and reliable energy reports for duty personnel. The loop name of the report is associated with the database, which is convenient for the user to modify the loop name. As shown in the figure below, the accurate power consumption of each power distribution circuit in a certain period of time is displayed. The user can directly print the report and save it to other locations in EXCEL format. See Figure (6).
Figure (6) Energy report
The schematic diagram of the system communication structure mainly shows the networking structure of the system. The system adopts a layered distributed structure and monitors the communication status of the interval layer devices. Red indicates normal communication and green indicates communication failure. The picture green indicates the merchant meter that is not in use. See Figure (7).
Figure (7) Schematic diagram of system communication structure
4 Conclusion
With the development of society and the wide application of electric power, electric energy system has become an inevitable choice for large-scale electricity users such as key projects, landmark buildings/large public facilities throughout the country. The Acrel-3000 power management system introduced in this paper is in Fuqingyu. The application of Ronghui can realize real-time monitoring and power management of the power distribution of the floor distribution circuit. The system realizes the analysis and processing of the collected data, and displays the running status of each distribution circuit in the floor in real time. Insufficient to pop-up alarm dialog box and voice prompts, and generate various energy reports, etc., to facilitate remote meter reading and analysis and research of electrical energy. The system is safe, reliable and stable, and provides a real and reliable basis for commercial users to solve the problem of power management, and has achieved good social benefits. [2]
references:
[1]. Ren Zhicheng Zhou Zhong. Principles and Application Guidelines of Power Electrical Measurement Digital Instrumentation [M]. Beijing. China Electric Power Press. 2007. 4
[2]. Zhou Zhongbian. Smart grid customer power monitoring and power management system product selection and solution [M]. Beijing. Mechanical Industry Press. 2011.10
About the Author
Yang Junjun, female, undergraduate. Position: Now working for Ankerui Electric Co., Ltd., contact number, mobile phone, QQ
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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